R448 Generator AVR
- publish： 2019-07-25 16:14 Browse：
- Type： R448
- Product Summary：
The circuitry of the R448 Automatic Voltage Regulator (AVR) provides closed loop control of the alternator output voltage by regulating the exciter field current. The primary winding has a voltage in ratio to that of the alternator (characteristic shunt), the next has a voltage in proportion to the stator current (compound characteristic: booster effect)....
Product description:
R448 is a special AVR for leroy somer generators.Generator output voltage is adjusted by using the voltage adjustment potentiometer on the AVR；Power factor regulator (2nd function) and voltage equalization before paralleling with the mains (3rdfunction).We strictly control the process and raw materials. Every product is made of imported or well-known brand materials. It undergoes 12 hours on-line aging test with rated current.The highest 85℃can work to meet the military standards.
Main features:
1、Voltage regulation < ±0.5%
2、Load acceptance module (LAM)
3、50/60Hz selectable
4、Under frequency & Exc. max protection
5、Single phase or three phase voltage sensing optional
6、Soft start voltage ramping
7、Normal rapid response time (option)
Specificaion:
Input voltage: 70-140V AC, (PMG, or auxiliary winding, single, three phases)
Reaction is measured : 90-480V AC
MAX. output :DC 10A 125V
Function: Built-in low-speed , over excitation LAM,
REGULATION: +/-0.5%
