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Regency Generators Knowledge Base

All About the Stamford S4L1D-F41 Alternator

What is the Stamford S4L1D-F41 Alternator?

The S4L1D-F41 alternator is part of the Stamford S4 series. This alternator includes the new thermal management system from Stamford which is proven to improve the thermal performance and power density of the alternator.

The S4L1D-F41 is therefore optimised for power density.

Where is the Stamford S4L1D-F41 Alternator currently manufactured?

As of January 2020, the S4L1D-F41 is manufactured in Wuxi (China), Ahmednagar (India), Craiova (Romania) and Stamford (UK).

Extra information on where Stamford manufacture their alternators can be found here.

What is the power rating of the Stamford S4L1D-F41 Alternator?

Running this alternator at 50 Hz will produce a maximum standby power of 465 kVA and a maximum prime power of 415 kVA. The power factor of this alternator is 0.8.

Where can I find further information on the Stamford S4L1D-F41 Alternator?

This alternator come with a self exciting excitation system as standard. There is the option of a PMG excitation system as well.

The insulation class for this alternator is class H.

The alternator has 4 poles and an IP rating of IP 23.

How is the quality of the Stamford S4L1D-F41 Alternator assured?

The alternator is produced to the production standard BS EN ISO 9001. This ensures that the production procedures for this alternator are continually monitored and kept to a high standard.