SME SubSea Motor Summary.

 

SILVERCREST/SME.

Tel: (+44) 1285 760620

Email: sales@SilvercrestSubmarines.com

 

Frame Motor kW HP Motor
Length
 No Shaft
Poles Aluminium SS316 ALI
kg
SS316
kg
Min
Voltage
Max
Voltage
Typical
Application
ROV5 ROV54 0.75 1 445 4P 140mm OD 130mm OD 9 10 115 1200 GEARBOX
ROV54 1.5 2 418 4P 140mm OD 130mm OD 10 11 115 1200 THRUSTER
ROV54 1.1 1.5 240 4P 200mm OD 181mm OD 9 10 115 1200
ROV54 2 3 300 4P 200mm OD 181mm OD 11 12 115 1200
ROV6 ROV62 4 5 408 2P 145mm OD 150mm OD 38 41 460 1200 HYDRAULIC POWER PACKS
ROV7 ROV74 5.5 7.4 369 4P 180mm OD 165mm OD 25 27 115 1200 THRUSTER
ROV8 ROV82 3 4 270 2P 195mm OD 190mm OD 32 38 460 1200 HYDRAULIC POWER PACKS
ROV82 5.5 7.4 430 2P 195mm OD 171mm OD 29 32 460 1200 THRUSTER
ROV82 18.5 25 673 2P 206mm OD 192mm OD 109 125 460 3000 HYDRAULIC POWER PACKS, WATER PUMPS, etc.
ROV82 30 40 843 2P 206mm OD 192mm OD 119 135 460 3000
ROV82 37 50 913 2P 206mm OD 192mm OD 129 145 460 3000
ROV82 45 60 1003 2P 206mm OD 192mm OD 139 155 460 3000
ROV82 55 75 1173 2P 206mm OD 192mm OD 149 165 460 3000
ROV84 1.5 2 470 4P 200mm OD 181mm OD 27 31 115 1200 HYDRAULIC POWER PACKS
ROV10 ROV102 3.5 4.7 306 2P 246mm OD 212mm OD 38 40 460 1000 HYDRAULIC POWER PACKS
ROV102 5 6.7 252 2P 246mm OD 212mm OD 39 42 460 1000
ROV102 15 20 397 2P 254mm OD 212mm OD 61 64 460 3300
ROV102 37 50 610 2P 254mm OD 212mm OD 115 125 460 3300
ROV102 55 75 730 2P 254mm OD 212mm OD 135 145 460 3300 HYDRAULIC POWER PACKS, WATER PUMPS, etc.
ROV102 55 75 730 2P 254mm OD 212mm OD 150 160 460 3300
ROV102 75 100 840 2P 254mm OD 212mm OD 165 175 460 3300
ROV104 5 6.7 234 4P 246mm OD 224mm OD 44 56 460 1000 HYDRAULIC POWER PACKS
ROV104 6.9 8.7 365 4P 230mm OD 216mm OD 70 82 460 1000
ROV104 7.5 10 383 4P 241mm OD 224mm OD 63 75 460 3000
ROV104 8.7 12 365 4P 230mm OD 216mm OD 70 85 460 1000
ROV104 11.5 15 550 4P 230mm OD 230mm OD 69 84 460 1000 GEARBOX
ROV104 20 27 360 4P 220mm OD 212mm OD 123 135 460 1320 HYDRAULIC POWER PACKS
ROV104 37 50 756 4P 254mm OD 212mm OD 150 165 460 3300
ROV104 55 75 1006 4P 254mm OD 212mm OD 212 230 460 3300
ROV104 75 100 1176 4P 254mm OD 212mm OD 250 265 460 3300
ROV104 75 100 942 4P 254mm OD 212mm OD 252 267 460 3300
ROV104 112 150 1262 4P 254mm OD 254mm OD 310 325 460 3300
ROV106 12 16 902 6P 254mm OD 227mm OD 120 130 48 1000 THRUSTER
ROV12 ROV124 55 75 568 4P 290mm OD 280mm OD 197 220 460 3300 HYDRAULIC POWER PACKS
ROV14 ROV142 37 50 433 2P 350mm OD 335mm OD 135 150 460 4160 HYDRAULIC POWER PACKS, WATER PUMPS, etc.
ROV142 55 75 463 2P 350mm OD 335mm OD 141 157 460 4160
ROV142 75 100 513 2P 350mm OD 335mm OD 172 187 460 4160
ROV142 93 125 553 2P 350mm OD 335mm OD 201 220 460 4160
ROV142 112 150 613 2P 350mm OD 335mm OD 223 244 460 4160
ROV142 150 200 643 2P 350mm OD 335mm OD 231 251 460 4160
ROV142 200 270 753 2P 350mm OD 335mm OD 278 480 460 4160
ROV142 230 310 803 2P 350mm OD 335mm OD 309 512 460 4160
ROV142 260 350 873 2P 350mm OD 335mm OD 342 542 460 4160
ROV142 300 400 953 2P 350mm OD 335mm OD 390 570 460 4160
ROV144 30 40 402 4P 350mm OD 335mm OD 110 130 460 4160 HYDRAULIC POWER PACKS
ROV144 37 50 422 4P 350mm OD 335mm OD 130 150 460 4160
ROV144 55 75 462 4P 350mm OD 335mm OD 150 170 460 4160
ROV144 75 100 522 4P 350mm OD 335mm OD 190 210 460 4160
ROV144 93 125 582 4P 350mm OD 335mm OD 218 238 460 4160
ROV144 112 150 642 4P 350mm OD 335mm OD 245 265 460 4160
ROV144 150 200 762 4P 350mm OD 335mm OD 300 320 460 4160
ROV144 175 235 842 4P 350mm OD 335mm OD 340 360 460 4160
ROV144 200 270 922 4P 350mm OD 335mm OD 380 400 460 4160
ROV144 250 335 1082 4P 350mm OD 335mm OD 450 470 460 4160


 

SUBSEA/ROV MOTORS:

 

 

Silvercrest/SME build and repair ROV submersible motors for all subsea applications. We design, manufacture, and supply, submersible electric motors for all SUBSEA and ROV, SUBSEA equipment, also for any special purpose submersible electric motor requirements.

Silvercrest/SME offer SUBSEA electric generators for Tidal Power Generation.

We repair and rewind large high voltage (500kW, 6600V) submersible electric motors.



High Temperature Submersibles in 6-inch to 20inch frames suitable for operation in ambient temperatures of 75 Deg. C.



Supply High Voltage water filled submersible motors (3300V, 4160V and 6600V).



Supply Upgraded Temperature Monitoring units, with new improved user-friendly parameter settings.



Manufacture Subsea and ROV motors suitable for depths of 4000M.



Manufacture Subsea Electric Generators for Tidal Generation.

 

Induction Generators or slow speed Permanent Magnet Synchronous Generators unto 500kW.

 

SUBMERSIBLE MOTORS and PUMPS.


We offer a wide range of electric submersible motors with matched hydraulic and water pumps.

 

We have our own submersible motors that are drop-in replacements for most of the popular models in use today. 

 

We can supply ROV HPU submersible motors from 30kW to 250kW, trenching HPU submersible motors from 100kW to 500kW, trenching jetting pumps, plough HPU submersible motors, plough jetting pump sets, turbine and centrifugal water pumps, and hydraulic pumps (Rexroth A7 and A10 series, Sauer 90 series and Kawasaki KV3 series).

   


We offer AC thrusters as direct replacements to existing DC thrusters from 1kW to 50kW in size.

 

Silvercrest/SME design and build specialized Submersible ROV motors for use SUBSEA in the offshore industry. These motors are usually made to order and vary from 1kW to 600kW, from 400 to 6600 Volts, 50 or 60 Hz, 2 Pole, 4 Pole, 6 Pole and 8 Pole.

 

We can repair, rewind, rebuild, and redesign any ROV submersible electric motor.

Silvercrest/SME design and manufacture specialized motors for use on SUBSEA equipment used in the offshore industry.

There are two common methods of construction - stainless steel construction or Marine Grade aluminium that is Black anodized to resist corrosion. We can also offer motors manufactured from Duplex and Super Duplex stainless steel.

Our subsea motors are usually oil filled and pressure compensated. The common operating voltages are 400 volts, 3300 volts, 4160 volts and 6600 volts (even for small 5kW motors).

Our motors operate at depths down to 4000 metres, or deeper by special request.

Silvercrest/SME manufacture complete submersible electric motors, motor-pump sets, and ROV HPU.

We offer submersible motor rewinding / rebuilding  /electrical conversion / and original construction modification.

SME can repair and completely rebuild most submersible electric motors (for example: Alstra, Aturia, Bamsa, B. J., Elmaksan, Exodyne/EEMI, G.E., Hayward Tyler, Hitachi, Mercury, Oddesse, Pleuger, Saer, S.M.E., Subteck, Sumo, Sun Star, U.S.).

 

 

Company Profile.

Silvercrest/SME manufactures new Submersible and ROV Motors. SME also services and repairs all brands of Submersible and ROV Motors. Including Hitachi, Pleuger, Grundfos, Mercury, Byron Jackson, Haywood Tyler, and Franklin. Our business is to manufacture, supply and service Submersible Electric Motors, Subsea and ROV motors. With a compliment of 30 service orientated staff members, we have the ability to service and technically support all makes and models of Submersible Electric Motors at our Maddington, Perth facility. Our sales department, with a total of 75 years experience in the Submersible and Electric motor business, are happy to assist with any enquiries on the purchase of Submersible Motors, HPU, and motor-pump sets, ranging from 3.7kw to 1500kw, in various voltages and frequencies. 

 

In our 1200 ft facility, purpose built for manufacture and service of Submersible Electric Motors we offer the following in-house services:

Full Machine Shop capacity.

Voltage Testing through 10,000 volts.

ISO9001 quality assured workshop.

An Overhead crane through 10 ton capacity.

A state of the art Water Pressure Test facility with full international certification.

High POT and Surge Testing.

Full Load / Dyno testing to 250kw of all types of Electric Motors with detailed test reports.

Balancing Facility available, to 250 kg.

SME are a fully integrated manufacturing facility and in addition to our Standard range of submersible motors we also offer the following:

Special Motors for specialist applications.

4 Pole, 6 Pole and 8 Pole motors.

All Stainless Steel or more exotic material construction. 

Special Thrust ratings.

Special Lead manufacturing. 

NEMA and other couplings in a variety of materials.

Replacement parts of obsolete products. 

Technical assistance during Commissioning.

Trouble Shooting.

Repairs to all makes (Oil and Water filled).

Rewinds of all Voltages (200 volt to 6.6kv) with 1 Year Warranty on all rewinds.

Dynamic testing.

Non-Destructive testing.

Welding and Machining.

On site or Factory Based Cable Splicing.

Retro Fitting of Condition Monitoring Equipment.

Modification of existing motors to upgrade them higher specifications.

Refurbishment of ROV motors using more technically advanced materials.

 

SILVERCREST/SME.

Email: sales@Silvercrestsubmarines.com

 

DYNAMOMETER LOAD TESTING.

  

SME type test their motors with a new 300kW water-cooled eddy current dynamometer with full computer control for accurate load testing.

The submersible motors have to be mounted in a tank for external water-cooling during the testing.

Instrumentation measurements are accurate to within 0.5%. The electrical inputs are measured with a Yokogawa 3 Phase Wattmeter. The measured results are stored on a computer, which is linked to the Yokogawa, and performance results can be calculated using the Summation of Losses Method, or the new IEC Input/Output Method. Results can also be calculated to NEMA Input/Output Standards. SME use a diesel generator to generate the electrical supply for the motor tests and can easily test at 50Hz or 60Hz frequencies.

There is a new 500KVA Voltage Regulator to vary and control the output voltage from 0 to 600 Volts, We can also test at 2300, 2850, 3300, and 4160 Volts.

This facility allows SME to supply accurate full Performance Test Reports on specific motors, rather than generalized Routine or Type Test reports.
   

SUBMERSIBLE MOTORS, ROV MOTORS, SUBSEA MOTORS for sale.

 

  MOTOR-PUMP SETS, ROV HPU for sale.

 

  TIDAL ELECTRIC GENERATORS.

 

Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, Rov motors, and subsea motors, motor-pump sets, and HPU's for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems. For use in the offshore Oil and Gas and Telecommunications industries, and subsea to depths of 4000m.

We offer a range of motors, motor-pump sets, ROV HPU, submersible, subsea and Rov motors (5hp to 1500hp) for use in

the more popular classes of subsea ploughs and Rovs.

All of these motors are available in either SS316, Duplex, Super Duplex stainless steel, or with a hard anodized aluminium finish. 

We can offer subsea submersible motors with a wide range of speeds and voltages (including 3000v, 6000v and 10,000v).

We can design and build motors to suit your individual and special project requirements. 

We refurbish and service a wide range of submersible motors. 

Our product is excellent, our prices very competitive, and our delivery schedule the best in the industry.

Submersible Motor Engineering/Silvercrest is the world leader in submersible motor technology, enabling our customers to explore deeper underwater than ever before.  

High power, high voltage and high-pressure specifications are common place for many of our clients.

Our submersible subsea and ROV motors are the best on the market today, offering a comprehensive choice of materials and design to underwater and ROV operators.

Submersible Motor Engineering/Silvercrest specializes in all aspects of submersible electric motor operation, performance, and design.

Due to industry demand for readily available quality parts, we also rewind, repair, redesign, and machine major components of other manufacturer's motors that require repair and re-manufacture.

 

CONTACT US TODAY TO DISCUSS YOUR SUBSEA MOTOR REQUIREMENTS.

Email: sales@SilvercrestSubmarines.com

 

We recently delivered ten 260kW, 3000VAC, double ended, 2 pole, stainless steel bodied motors to CTC Marine Projects Ltd, for use on their fleet of sub-sea trenchers. This was a bespoke order that was completed in just six weeks from receipt of order. 

Also five 400kw, 4 –Pole, 3300/3/60, SS316 Construction, Subsea Submersible Motors for SMD.

Silvercrest/SME supply submersible motors, HPU's, and motor-pump sets worldwide.

Our customers include SMD, Saab SeaEye, Ldtravocean, Fugro, CTC Marine Projects, Perry Slingsby and many others.

  

 

 

Subsea Trencher fitted with our SME 142-265KW stainless steel construction submersible motor and pump.

 

Silvercrest/SME have manufactured and supplied six 400kw ROV20-4 motors, 4-pole/3300vac/3 phase/60hz, stainless steel construction. Single ended for fitment with Sauer  hydraulic pumps Series-90-L250. Rated for 3000m depth operations.

Also three ROV204 submersible motors (300kw/4 pole/3300vac/3 phase/60hz) with stainless steel construction, and double ended for fitment with Sauer hydraulic pumps to SMD-Hydrovision.

Together with 7.5kw motors for Rov cursor application.

SME has also manufactured a total of seven (7)  6600V motors todate, for three different offshore contracts. Petronas Dulang and Angsi Platforms. Star Energy KG Platform.

 

   

 

A new Saab-SeaEye Jaguar ROV, fitted with our SME ROV12-2, 48kW 65HP, 2-pole, 3000/3/50, aluminium construction ROV submersible motor, and Rexroth hydraulic pump. Fitted with temperature sensing and water detectors. Epoxy coated for protection.

 

Two submersible double-ended motors mounted with hydraulic pumps, fitted to a submarine digger.

SME ROV14-4, 75kW/100HP, 4–pole, 3000/3/60, Anodised Aluminium Subsea Motors with Interface to suit the Hydraulic Pumps.

We manufacture and rebuild very large submersible motors for a range of other offshore and subsea companies. These include: Global Marine, CTC, Sonsub, Star Energy, Sulzer Wood, Sulzer, Fugro, Apache, BHP Billiton, Petronas, SMD, Exxon Mobile, Chevron, Perry Slingsby, Subsea7, Bayu Purnama, ISE Ltd, Saudi Aramco, Woodside, PXP.

 

Silvercrest/SME will bespoke manufacture virtually any shape and size of submersible motor required for subsea operations.

We will be very happy to discuss the details of your  subsea motor / pump requirements in order to produce a detailed technical quote for you.

Silvercrest / SME design and build specialized subsea motors, and support packages for use on all types of Rovs and underwater vehicles  in the offshore and subsea industry.

These submersible motors are usually made to order and vary from 1kW to 1500kW, 400 to 4160 Volts. 50 or 60 Hz, 2-Pole to 8-Pole.

There are two common methods of construction available: -

Stainless steel construction, or Marine Grade aluminium that is Black anodised to resist corrosion.

These motors are usually oil filled and pressure compensated. Common operating voltages are between 300 volts and 3300 volts - even for small 5kW motors.

6,000vac and 11,000vac motors also available by special request.

Certain subsea motors can operate down to depths of 10,000 meters.

 

 

SME manufactures new Submersible, Subsea, and Rov motors. 

SME also rewinds, services and repairs all brands of Subsea, Submersible and Rov motors.  Including Hitachi, Pleuger, Grundfos, Mercury, Byron Jackson, Haywood Tyler, and Franklin. 

Silvercrest/SME is a leading manufacturer of high quality submersible motors and pumps, designed specifically for subsea operations.

Silvercrest/SME specialize in the bespoke manufacturing of submersible motors, pumps and ancillary equipment for use on Rovs, subsea trenchers, subsea ploughs, dredgers and water lift pump systems, for use in the offshore Oil and Gas and Telecommunications industries.

  

We manufacture our own laminations, designed specifically to meet the individual requirements of each customer. We do not buy off the shelf standard rotor sets and fit them in a housing, as some other manufacturers will often do. As a result our motors are more efficient and generally slightly smaller, in both diameter and length, than our nearest competitors for any given power rating. 

Silvercrest also offer a range of ‘standard’ motors for use in well-established underwater installations, such as the more popular classes of Rov and subsea ploughs.

 

SILVERCREST / SME offer:

Repair and rewind of large high voltage (500kW. 6600V) submersible electric subsea motors.

High Temperature Submersible subsea motors in 6-inch to 20-inch frames suitable for operation in ambient temperatures of 75 Degrees.C

High Voltage water filled submersible subsea motors (3300V, 4160V and 6600V).

Upgraded Temperature Monitoring units available with new improved user-friendly parameter setting.

ROV and subsea submersible motors suitable for depths of 4000m.

WD Series sump-pump motors.

Subsea Electric Generators for Tidal Generation.

Induction Generators or slow speed Permanent Magnet Synchronous Generators up to 500k.

 

Heat Exchanger Motors.

      

We now offer a complete range of water filled, watertight, submersible subsea motors with integral heat exchangers in 10-inch, 12-inch, 14-inch and 16-inch size for 2 pole and 4 pole speeds.

      

These subsea motors offer a significantly lower temperature rise when compared with standard submersible subsea motors. This is an advantage that can be utilized when customers want to operate in water with a high ambient temperature, or when there will be minimal cooling water flow available. Even with the standard applications the lower temperature rise will extend the life of the motor significantly. There is an accepted rule of thumb for electrical insulation that its life is shortened by one-half for every 10°C increase in operating temperature. The winding operating temperature for a normal water filled submersible motor is about 70 degrees.C, in 25 degree.C water. However an SME Heat Exchanger Motor will be running at about 45 degree.C. (This is 25 degrees cooler). This magnitude of difference in temperature rise will have a significant positive impact on motor life.

       

The basic design principle for these subsea motors is to circulate the internal water in the motor remove the heat from the "active" parts of the motor, and then pass it through a heat exchanger which brings the internal water back to somewhere close to the external ambient water temperature - before feeding it back through the "active" parts again to remove more heat.  The heat exchanger increases the external surface area of the motor by 50% and the water circulation allows the heat to dissipate more evenly and quickly out of the subsea motor and into the external water. The small impeller inside the subsea motor that circulates the  water has an insignificant impact on the motor efficiency in terms of additional load, while the subsea motor has an improved efficiency because the stator and rotor copper losses are reduced due to the lower operating temperature.

     

Motor Thermal Protection Unit

      

All SME Heat Exchanger Motors come with four (4) PT100 temperature sensors installed in the motor.

One PT100 is attached to the thrust bearing assembly that will detect excessive thrust loads and overheating in the thrust bearing.

One PT100 is installed in the end winding on the non-drive end of the motor.

One is installed half way down the slot in the winding in the middle of the motor.

One is installed in the end winding on the drive end of the motor.

      

SME can offer one temperature protection unit (SME4TM) to monitor all four PT100'S installed in the Heat Exchanger Motor.

      

Rov and Subsea Plough and Trencher Motors.

Silvercrest  offer an established range of Rov motors ranging from 5HP to 500HP.

All of these motors are available in either SS316 or Hard Anodized Aluminium finish. We will also design and build

submersible motors to suit your individual requirements and subsea project.

Our motors are in use with most of the major operators worldwide such as Saipem, SMD Hydrovision, Sonsub, CTC Marine Projects, Impresub, Fugro, Thales, MTQ, LD Travocean and Canyon Offshore.

 

 

Submersible ROV HPU and Compensation Units. 

Silvercrest/SME manufacture and supply a wide range of electric submersible motors, motor-pump sets, together with matched hydraulic pumps (HPU) or water pumps.

We can supply ROV HPU submersible motors from 30kW to 250kW, trenching HPU submersible motors from 100kW to 450kW, trenching jetting pumps, plough HPU submersible motors, plough jetting motor pump sets, turbine and centrifugal water pumps, hydraulic pumps, Rexroth A7 and A10 series pumps, and Sauer 90 series & Kawasaki KV3 series pumps. 

We also offer a range of subsea components for manned submersibles, ROVs, submarines,  subsea trenchers and  subsea ploughs.

Also oil compensation units (Compensators).  We supply AC thrusters as direct replacements to existing DC thrusters from 1kW to 50kW in size. 

 

Oil Compensator Units.

Silvercrest/SME supply oil compensator units for subsea vehicles, to suit manned submersibles, ROVs, submarines,  subsea trenchers and  subsea ploughs, and subsea equipment.

We can offer a range of oil compensation unit sizes, including a 2.7L Compensator.  7 x 1/4" NPT (BSPT). SA-HC-0745-MAS.

 

 

This is a rolling diaphragm, positive pressure compensator (2700cc capacity), manufactured in corrosion resistant plastic suitable for ROV and tooling applications.

These units are particularly suitable for compensating thrusters, compensating oil filled junction boxes, compensating valve packs, and other subsea applications

 

Motor-pump sets (depth rated to 3000m) for subsea trenching operations.

Silvercrest/SME has recently manufactured and supplied two 265kw motor-pump sets for SMD-Hydrovision (England). The package comprised 265kw subsea motors, 2-pole, 3000v, 3ph, 60hz. Together with Jetting Pumps (wet end only, operating at 2-pole, 60 hertz). The motors were a stainless steel construction, and the pumps Zinc Free Bronze. These motor-pump sets will be installed onto one of the world’s largest subsea trenching vehicles.

In addition, Silvercrest /SME has manufactured and delivered in just eight weeks from order, two water turbine pumps to CTC Marine Projects based in Teeside (England). The pumps will be used by CTC, in conjunction with Silvercrest/SME submersible 260Kw motors, on their subsea plough and trenching vehicles worldwide.

 

300 kW PUMP MOTORS.

We can offer you submersible motors with the following specification: - 

Volts                                  3300VAC / 60hz / Three Phase 

Poles                                  2

Speed                                3500 RPM

Depth     Rating                 3000 Mts nominal

Compensation                   Oil filled - external cooler/compensator included

Housing                             316 SS

Mounting                          Vertical (As per details to be supplied)

Shaft                                  See above  (As per details to be supplied)

KW                                   300kW @ 60 Hz

Insulation Rating             >16kV @ 140 deg C (Mylar)

Shaft Seals                        Bergman mechanical seals. 

 

Single pump motor to replace a Hayward Tyler Sumo 260kW motor.

We can offer the ROV14 motor with shafts at both ends; to mate with 3 x tandem mounted hydraulic pumps on one end, and a 2-stage Plueger MI16 water pumpset on the opposite end. The female spline can be manufactured to mate with the supplied pumpset.

Our purpose built pump motors are designed specifically for use in the horizontal axis.  Unlike a down hole pump motor such as the HT Sumo, our motors do not use pivot shoe thrust assemblies.  As a result our motors are compensated for depth pressure using oil rather than distilled water as in the case of down hole pump motors.

Unlike most motor manufacturers, we manufacture our own core laminations on site, affording maximum flexibility in design.  We can bespoke manufacture virtually any shape of motor you may require.

In this 260kW model, rather than use the pivot shoe arrangement, we fit heavy-duty tapered roller bearings to the rotor to manage the water pump induced end loads.  Thus increasing the reliability and service life of the motor by a factor of 10 or more when used in the horizontal axis.

Our superior Mylar coated windings are the ultimate in winding coating technology.  Mylar coated windings have an insulation rating of >16kV at a temperature of 140 degs C.  No other winding coating even comes close to this standard.

We can offer you submersible motors with the following specification:-

Volts                                  3000VAC / 60hz / Three Phase

Poles                                  2

Speed                                3500 RPM

Depth     Rating                3000 Mts nominal

Compensation                   Oil filled - external compensator (not included)

Housing                              316 SS

Mounting                           Horizontal (Details to be confirmed)

Shaft                                  See above  (Details to be confirmed)

KW                                    260kW @ 60 Hz

Insulation Rating               >16kV @ 140 deg C

Shaft Seals                         Bergman mechanical seals.  (Tandem seals available)

The final specification will need to be agreed upon placement of an order.  Insulation rating using Mylar windings.   

 

 ROV 14 260kW Pump Motor under construction

 

Full Factory Rewind and service of  260kw motors.

Our standard refurbishment programme includes the following:

 

Any further work deemed necessary as a result of the factory inspection will be quoted separately, and a decision given by the customer as to the course of action required on an item-to-item basis.

 SUBSEA and SUBMERSIBLE THRUSTER SYSTEMS.

 

 Emacs!

Silvercrest in conjunction with SME are able to offer a complete range of submersible motor systems to meet the demanding requirements of the Rov, sub-sea trenching, and manned submarine industries. Manufactured to exacting standards, our motors are more competitively priced than any comparable motors on the market today.

 

Thruster Motors.

SME ROV8-4, 5.5kW, 4 Pole, 400/3/50, SS316 construction Subsea Motor for Thruster application (reversing Propeller mounted directly on shaft).

 

This motor was designed as a thruster motor and has an in-built thrust bearing arrangement to handle thrust in both directions.  The drawing is for a 2-pole motor but the 4-pole version would be a similar size.  The motor mounting arrangements and shaft requirements can be modified to suit different customer applications.

 

ROV MOTORS  / TRENCHING REPLACEMENT MOTORS.

 

We offer a standard range of direct replacement motors, designed as a direct replacement to fit into many of the more popular ROVs and trenching systems in use today (for example, the Perry, Hydrovision and Slingsby underwater systems).

 

For example, the picture below shows an SMD-Hydrovision 200HP ROV Curvetech motor (bottom) beside a Silvercrest/SME motor (top).

The SMD motor is somewhat larger and heavier than the equivalent motor manufactured by ourselves.

Our ROV14-4 200HP motor that we presently build in various numbers for another offshore client is both smaller in size and lighter in weight.

 

 

Silvercrest can offer bespoke manufacturing of motors to meet your specific requirements.

We recently completed the design of a 290HP / 300VAC trenching motor for use in subsea trenching operations.

Also available upon request are matched High Voltage Transformer Units (HVTUs) and electronic soft starts for each standard replacement motor.

HVTUs are custom built to your specification.

 

Our standard ROV / Trenching Replacement Motor Range include:

MANNED WET and DRY SUBMARINE PROPULSION SYSTEMS.

Historically, over the last fifteen years electrical submarine thruster systems have been problematic. Notably AC motor controllers and DC brush motor powered thrusters have been the cause of many a company’s downfall. Other problems such as 120VDC battery buss voltages have compounded the overall problem.

Since the early tourist submarines first came into use during the mid 80’s, motor controller technology has steadily developed. Certain manufacturers have produced systems which have proven to be more capable and more importantly, reliable than their early counterparts. Unfortunately, this leaves quite a few of the older tourist and research submersibles struggling with the older unreliable systems that are still in use.

A little known fact is that motor drive systems have a finite operating life, indeed they have a ‘shelf life’. This is due to the deterioration of the large capacitors used in the drive controllers. This occurs even when the drive is not in use. If a drive is more than five years old, then it’s capacitors are already approaching the end of their useful life. As a result these drives are now becoming tired and often prone to failure. Usually with accompanying pyrotechnics.

Silvercrest has developed a new ‘replacement’ propulsion system for both new build and existing manned submarines. We tailor the installation to solve your propulsion requirements. Plus we will visit you on-site to assess your installation and determine the best route forward to solve your problems.

Once the problems have been identified and assessed, where needed, we will re-design your battery buss arrangement to produce a working voltage suitable to run a reliable and powerful thruster system. We will then design the motors specifically to meet your requirements. The pressure compensation system is added and the final stage of the design process is matching the correct drive with your new motors.

Recently Silvercrest completed the installation of our 69kW (6 x 11.5kW) AC propulsion and ballast system into one of the Odyssey class tourist submarines in Southeast Asia. The system utilizes a state of the art, purpose built, 11.5kW thruster / ballast pump motor. A custom built submersible, 3 phase, AC, squirrel cage induction motor encased in a 316 Stainless Steel compensated housing. The motor was designed specifically to match the available buss voltage and it’s dedicated motor invertor controller. The Silvercrest motor is smooth, quiet and powerful.

 

Motor control is supplied through a CT Commander SE invertor controller drive. Manufactured by one of the leading drive manufacturers in the world today. Each drive utilizes digital control using an onboard processor with EEPROM data storage. This allows the drive to store operating parameters and it’s own operating history for maintenance and fault diagnosis purposes.

A twin Burgmann tandem mechanical shaft seal arrangement, fitted on each motor shaft, provides protection from water ingress. This works in conjunction with a custom built 33 Lt capacity oil-filled central motor compensation system.

Great attention has been applied to designing our motor systems for reliability and a long working life. All components are rated to at least 150% of required working capacity. This over rating of individual components ensures that no single part of the system can ever be overloaded during correct use.

Specific motor functions and operational profiles can be catered for and programmed into the CT controller. For example the Odyssey system has a ‘Turbo’ function, whereby the motors run normally with a 7.5kW max output. At the flick of a switch on the pilot’s console, the motor can be enabled to output it’s maximum 11.5kW (for 1½ minutes) for use in manoeuvring emergencies.

Motors and drives of various ratings are available from Silvercrest, utilizing many of the same frame parts. For example our 15kW motor utilizes the exact same parts as the 11.5kW unit, but with more motor laminations and therefore a slightly longer body. This reduces your spares requirement even when mixing and matching the motor sizes. Military spec versions of the motors are also available on request.

Silvercrest offer a return to dealer, two-year warranty on all parts, subject to correct usage and subject to our standard terms & conditions.


ROV Motor ROV12, 65HP, 3000v + Rexroth pump.

SME ROV12-2 48kW 65HP 2-pole 3000/3/50 Aluminium Construction ROV Motor fitted with Rexroth A10VO28DFR1/31R-PSC62N00 Hydraulic Pump.  Motor with Oily Tube connection for Power Leads.  Fitted with Temperature Sensing and Water Detectors terminated on Subconn or similar connector.  Power Conductor and Sensor Connector Blocks to be in the same position on the motor at opposite ends.

Submersible Motors for Water-Jetting Pumps.

SME ROV14-2, 200HP, 150kW, 2- pole, 3000/3/60 motor. Anodised Aluminium Construction. To suit operation with Water Jetting Pump. Fitted with Subconn connector Type MCBH4M. Flange and Shaft requirements to be advised by customer.

 

Submersible Motor ROV14, 200KW, 4-poles, 3000v motor + Rexroth pump.

SME ROV14, 200kW, 268HP, 4 Pole, 3000/3/50, 1490rpm Stainless Steel Construction Subsea Motor designed to close couple to Rexroth A11VLO190DRS-11-LN-12N00 Hydraulic Pump. The motor will cool itself in the ambient seawater. Sensors and electrical connector included in the motor price. Rexroth pump A11VLO190DRS-11-LN-12N00. Hydraulic Pump with Horsepower Limiting Controller.

 

Subsea Motor. SME ROV14-4, 125HP, with Vickers Hydraulic Pump.

 

SME ROV14-4, 93kW 125HP, 4-Pole, 3000/3/50, Anodized Aluminium Construction with Vickers PVH141-Q1C Hydraulic Pump.

Silvercrest/SME have supplied six 400kw ROV20-4 motors, 4pole/3300vac/3 phase/60hz, stainless steel construction. Single ended for fitment with Sauer hydraulic pumps Series-90-L250. Rated for 3000m depth operations.

Also three ROV204 submersible motors (300kw/4 pole/3300vac/3 phase/60hz) with stainless steel construction, and double ended for fitment with Sauer hydraulic pumps to SMD-Hydrovision. Together with 7.5kw motors for Rov cursor application.

In addition we recently manufactured and delivered in just six weeks from order, ten 260Kw submersible motors to CTC Marine Projects based in Teeside, England. The motors will be used by CTC on their subsea plough and trenching vehicles worldwide.

The 260kW/ 3000V / 60Hz / 2 pole pump motors (designed specifically for use in the horizontal axis) were fitted with shafts at both ends, in order to mate with three tandem mounted hydraulic pumps on one end and a Hayward Tyler M6 single stage water pump-set on the opposite end. In this 260kW model, rather than using the pivot shoe arrangement, typical of vertically oriented pump-sets, heavy duty tapered roller bearings were fitted to the rotor to manage the water pump induced end-loads. Thus giving a calculated bearing life in excess of 11,000 hours, even when used in the horizontal axis. Depth rating on each motor is 10,000 meters, with oil filled compensation.  Motor housings are 316 stainless steel, with Mylar coated windings (the ultimate in winding coating technology) being used in each motor at the request of CTC, giving an insulation rating of >16kV at a temperature of 140 degrees C. 

 

Silvercrest/SME will bespoke manufacture virtually any shape and size of submersible motor required for subsea operations.

SME can design and build SUBSEA motors to suit most requirements.

   

Flexible External Dimensions to suit all applications.


Dimensions to allow drop in replacement for existing units.


Anodised aluminium, or 316 stainless steel construction.

Power drive to load using an output shaft with a standard coupling, or close coupled.

Single drive shaft, or a drive shaft at both ends, (double shaft extension).

 

SME can design and build a motor with a completely new lamination to meet special design requirements, if necessary.

SME design their motors so they do not run hot. Typical motors can run on deck for at least 10 minutes on full load, with no cooling, without overheating. The motors are designed to be compact in size and suitable for heavy-duty applications, such as subsea trenching.

If weight is important, SME can design the motor for minimum weight by utilising an aluminium construction and a hollow motor shaft, etc., while still ensuring the motor is generously rated for full load operation. If the motor is going to drive a hydraulic pump we recommend a close-coupled arrangement to save the weight of the coupling and the coupling housing.

SME can design and build motors for all voltages from 24 Volts to 4160 Volts with 50Hz or 60Hz frequencies, or for VVVF requirements. High Voltage motors can have random stator windings, or formed coils, depending on space and weight constraints. The winding wire for the High Voltage motors is double insulated and passes a twisted wire test at 16,000 volts and is rated up to 155 Deg.C. All windings are designed to keep 'turn to turn' voltage to a minimum. All winding materials and cables, etc. are specially selected to be suitable for use in hydraulic oil.

 

In general the SME subsea submersible motors have low loss lamination steel (3 Watts/kg), which allows for higher flux densities, and less heat, with less material and weight.

All motors are oil filled and we recommend hydraulic oils for good lubrication characteristics, in preference to electrical oil that has better di-electric capabilities, but worse lubrication capabilities.

If motors are going to drive a water pump SME can design the motor to take the thrust load from the pump, and keep the sea water out of the motor with a single or double mechanical seal arrangement.

Thruster motors can be designed and built for voltage/speed control, which is a relatively simple speed control system, and they can also be built with a thrust bearing incorporated to take the thrust load from the impeller.

To ensure the integrity of the motor housing SME does not use castings. All components are machined from solid or from extrusions. The external aluminium components are typically 6061 T6 marine grade aluminium and hard anodised to a military specification.

All ball bearings are from well-known brands such as SKF, FAG, or NSK. Oil seals are high temperature and typically made from Viton. Mechanical seals are typically Burgmann.

All hardware used on SME SUBSEA motors is 316SS.

All fixing holes are blind except the "oil in" and "oil out" fittings and the stator pack fixing bolt, if applicable.

The preferred power cable entry system for SME motors is to use an "oily tube" connected to an adaptor that is part of an oil tight rubber gland that is fixed to the stator frame. SME do not recommend bringing the power cables through the end shields of the motor because this creates additional complications when the motors are stripped down during service, because the end shields cannot be readily removed from the stator. Subsea connectors can be offered as an alternative to the Oily Tube if requested.

SME strongly recommend that the motors are supplied with PT100s fitted in the windings and also in the bearings and that the internal motor temperatures are monitored and set up to alarm if the temperatures rise above the "norm". SME can also offer additional protection with a water detector, etc. The auxiliary connections for PT100s, etc. can be made through standard high pressure, water tight, plug and sockets as supplied by "Subconn", "Impulse", and "Burton". These are also fitted to a connection block on the stator, not on the end shield.

All finished motors are pressure tested to ensure they are "oil tight" and suitable for compensated operation down to 4000 metres.

All motors are rated for continuous operation and all prototype motors are full load performance tested at rated voltage and rated frequency to confirm their performance characteristics. All motors can be issued with a "Type Test Certificate" or even full load tested at additional cost, if required.

SME can also offer to arrange for hydraulic pumps to be set up and tested on the motors at rated voltage and frequency.

SME can offer to supply Hydraulic Power Units complete with the addition of a customer specified Hydraulic Pump.

SME is a fully quality assured company to ISO 9001.2000 for "Design, development, manufacture, and testing of submersible electric motors and electric motors for remotely operated vehicles".

SME Subsea motors can be designed and built for all subsea applications, such as ROVs, Trenchers, Ploughs, Submarines, Dredges, etc.

All makes of subsea motor can be serviced, repaired and tested by SME. In some cases the original motors can be significantly upgraded. If you are having problems with your existing subsea motors please contact SME - we are keen to help and we are very price competitive.

At SME we are continually working on improving the performance of our products and for this reason we reserve the right to make changes without notice to any of the data in this brochure. Please contact us direct for confirmation of any drawing dimensions or performance data.

SME design, manufacture, and supply, submersible electric motors for bore holes, SUBSEA vehicles, and ROV electric motors for SUBSEA equipment, submersible electric motors for sump pumps, and any special purpose submersible electric motor requirements.

 

SILVERCREST / SME.

Tel: (+44) 1285 760620

Email: sales@SilvercrestSubmarines.com