Item Detail:
Voltage regulation: ±0.5%
Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation)
Voltage sensing:
95 to 140 volts (50/60 Hz) or
170 to 260 volts (50/60 Hz) or
340 to 520 volts (50/60 Hz)
Short circuit capacity: rated 3Xl, 10 seconds (AREP or PMG excitation system)
Net weight: 800g
Compatible with:for Leroy Somer R438
excitation system and is fitted as an option on:
- 1000 Series Generators*
- 2000 Series Generators*
- 3000 Series Generators*
automatic voltage regulator-R438:
The circuitry of the R438 Automatic Voltage Regulator (AVR) provides closed loop control of the generator output voltage
by regulating the exciter field current. The R438 can be powered by AREP or PMG field excitation system and is fitted as an option on:
- 1000 Series Generators*
- 2000 Series Generators
- 3000 Series Generators
With the AREP excitation system the R438 AVR is powered by two auxiliary windings which are independent of the voltage detection circuit.
With the PMG option the R438 AVR is powered by the PMG which is fitted at the rear end of the generator.
Load adjustment module (LAM):
On load impact, the rotation speed of the generator set decreases. When it passes below the preset frequency threshold,
the LAM causes the voltage to drop by approximately 15% and consequently the amount of active load applied is reduced
by approximately 25% until the speed reaches it's rated value again.
Response time:
Normal (1 sec) for ±20% voltage variation
or Rapid (0.3 sec) for ±20% voltage variation
Remote voltage adjustment range of: ±5%
Package including:
1Pc x AVR R438 Automatic Voltage Regulator
Tips 2 :
Please allow 0.1- 0.5cm error due to manual measurement. Please make sure you do not mind before you buy.
The colors may have different as the difference display, please understand.
Please check which Length and the Quantity you need.
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Items are shipped from China or HongKong using Airmail, reach most of the countries within 10 to 20 business days.
Delivery time depends on destination and other factors, it may takes up to 25 business days.Other countries or remote area may take longer.
Please E-mail or eBay message us if the items did not deliveried within 31 days.And we can give you a satisfactory solution.
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Returns：
If this item is defective upon receipt, customer has up to 30 days from date of receipt for exchange of a new one.
But buyers should be pay for the shipping charge for returning.
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