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R250 Genuine Leroy Somer AVR
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Product Details
The R250 Genuine Leroy Somer AVR for the LSA series of industrial alternators provides excitation current up to 5 A with excellent reliability for SHUNT excitation types.
The R250 Genuine Leroy Somer AVR is also equipped with a Load Acceptance Module (LAM). The R250 is an analogue AVR with transistor-controlled power. It is intended for use with tiny alternators that use a SHUNT excitation. R250 regulates the excitation current in order to keep the alternator’s output voltage stable. R250 is a high-performance voltage regulator that is easy to set up and operate.
It complies with the IEC 60034-1 standard and is UL 508 / CSA certified.
Product Specification
| Technology | Analog |
| Excitation mode | SHUNT, 3-phase and 1-phase |
| Rated excitation current | 5 A |
| Regulation accuracy (+/- %) | 0.5 % |
| Frequency range | 10 – 100 Hz |
| Voltage setting range (+/- %) | 5 % |
| kU/F limitation | K = 1 |
| Loss of sensing voltage | – |
| Over-excitation limitation | – |
| Short circuit current limitation | – |
| Voltage droop | – |
| Parallel operation between alternators | – |
| Load Acceptance Module (LAM) | ✓ |
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R250 Genuine Leroy Somer AVR
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