The EA448 generator automatic voltage regulator is a product suitable for auxiliary winding or permanent magnet brushless generators. Its voltage adjustment rate is < ±0.5%, it has LAM function to increase the stability of the instantaneous load, and it selects 50/60 Hz with a connection line. It has low frequency protection and over-excited magnetic current limiting functions, and can choose single-phase or three-phase voltage detection functions. It has a slow start function to stabilize the initial voltage and has two-stage response time stabilization adjustment.
This manual describes the EA448 generator automatic voltage regulator, which is compatible with Leroy Somer R448 AVR units. It outlines the regulator's features such as voltage adjustment rate under +0.5%, low‑frequency protection, and selectable single‑phase or three‑phase voltage detection.
Technical data include input voltage range, output limits, environmental operating conditions, and physical dimensions. The document also provides adjustment knob functions, wiring diagrams, and storage guidelines for reliable operation in harsh industrial settings. This manual is written in Chinese.
| Input voltage range | 95–140 V |
|---|---|
| Maximum output current | 10 A |
| Maximum output voltage | 160 VDC |
| Voltage adjustment rate | < 0.5 % |
| Operating temperature | -40 °C to 60 °C |
| Dimensions (D×W×H) | 203 mm × 153 mm × 60.5 mm |
| Weight | 970 g |
The regulator accepts an input voltage between 95 V and 140 V.
It can deliver up to 10 A of output current.
The device operates from –40 °C up to about 60 °C.
The regulator measures 203 mm × 153 mm × 60.5 mm (D × W × H).