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Stamford Three Phase Brushless Two Bearing Alternators

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The P0 and P1 Stamford range from Cummins Generator Technologies are new small scale brushless three phase generators / alternators that work at 7.5 to 42.5 kVA at either 1500rpm for 50Hz operation or 1800rpm for 60Hz operation.

Suitable to operate as a primary AC power source for standard electrical lighting, household appliances, general small scale residential use and commercial applications. These units provide self excitation / regulation and a stable output with the use of a quality solid state automatic voltage regulator. This simple system minimizes the complexity and has proven reliable in operation.They work for all sorts of engine matches in both single bearing and two bearing configurations, are easy to service and maintain with sealed for life bearings and diodes which are accessible without having to remove the rotor.

There are twelve sizes available in the range covering outputs of 7.5 - 42.5 kVA with 12 wire reconfigurable setup.

Two bearing machines pricing is for the basic machine, SAE 2, 3, 4, or 5 adaptors are available at extra cost from the dropdown menu.

  • IP23 enclosure protection is standard.
  • Brushless design.
  • Four Pole 1500rpm
  • Winding options include three phase 12-wire reconnectable to single phase, and 4-wire dedicated single phase.
  • UL compliant.
  • Power factor 0.8 cosφ
  • CE approved.
  • Dynamically balanced rotors
  • Quality sealed bearing for longevity.

Data sheets for the available sizes are available from the links below.

7.5Kva Data sheet and Instruction Manual.

10Kva Data sheet and Instruction Manual.

12.5Kva Data sheet and Instruction Manual.

15Kva Data sheet and Instruction Manual.

17.5Kva Data sheet and Instruction Manual.

20Kva Data sheet and Instruction Manual.

25Kva Data sheet and Instruction Manual.

27.5Kva Data sheet and Instruction Manual.

30Kva Data sheet and Instruction Manual.

35Kva Data sheet and Instruction Manual.

40Kva Data sheet and Instruction Manual.

42.5Kva Data sheet and Instruction Manual.

Stamford Power Portfolio.

Please note that all Stamford units are manufactured / customised in the UK to order and as such are supplied owith aproximatly an 8-10 week lead time. The standard shipping cost upon checkout applies to mainland UK only, if you are overseas please contact us for a quotation.

We are often asked the question "what size alternator can I couple to my engine?" the following may be of some help.

As a rule of thumb, at 100% efficiency (which is an impossibility), each BHP is 746 Watts, so a 6 HP engine can theoretically develop 4.476 KW. Practically, there are losses in the alternator/generator, belts, bearings, etc. and the net output power is about 2/3 of the theoretical maximum. So figure 1/2 of the BHP is the number of KW you can realistically expect. Generators and alternators should be specified a little over sized as it improves efficiency and allows for motor starting surges etc.

Lister D, DK & F Type Transfers
Lister D Copper Head Gasket
Whitworth Bolt 5/16 x 1,1/4 Lister D Exhaust Flange
HT Lead Terminal
No.20 Alligator Style Belt Lacing
2" Wide 3ply 4.5mm Thick Balata Flat Belting
Lucas RS1 & SR1 Magneto Replacement Condenser
Lister Spark Plug - Champion D16
SAE Bell Housing Adaptor Flanges For Stamford Series Alternators
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