SGI series intelligent three-phase AC phase shifting voltage regulator is a multi-functional large-power integrated phase shifting voltage regulator. It can realize automatic and manual three-phase voltage regulation. It is widely used in three-phase AC motor speed regulation, electric heating control, various power supplies, as well as industrial automation, chemical industry, mining, textile, and communication.
The SGI series intelligent three‑phase AC shift‑phase control module integrates a three‑phase SCR main circuit, phase‑shift trigger control, phase‑loss protection, over‑temperature protection and current‑limiting protection. It offers 0‑10 V and 4‑20 mA control inputs, works without phase‑sequence requirements, and is used for three‑phase motor speed control, electric heating, power supplies and various industrial automation applications.
The manual describes the internal connection diagram, naming conventions, technical parameters, wiring diagrams for 0‑10 V and 4‑20 mA control, adjustment procedures for over‑current protection, installation dimensions, safety precautions, and troubleshooting steps for common faults such as no output or voltage imbalance. This manual is written in Chinese.
| Rated current | 50 A – 500 A |
|---|---|
| SCR blocking voltage | 1200 V |
| Weight | 2.2 kg |
| Control current | 4‑20 mA DC |
| Manual potentiometer resistance | 10 kΩ |
| Protection temperature | 75 °C |
| Operating environment temperature | -30 °C to +40 °C |