User manual for Sfere LBT series reactive power compensation switching unit, covering specifications, installation, wiring, and safety.
The Sfere LBT series reactive power compensation switching unit provides dynamic switching for reactive power compensation and harmonic mitigation. It uses high‑reliability bidirectional thyristors to achieve zero‑voltage insertion and zero‑current removal, with a fast response time of ≤20 ms.
The manual includes product introduction, naming meaning, technical parameters, mechanical dimensions, wiring instructions, safety precautions, warranty information, and contact details to help users install, operate, and maintain the unit safely and efficiently. This manual is written in Chinese.
| Working Power Supply | AC220V±20% 50Hz±10% |
|---|---|
| Rated Voltage | AC380V±20% |
| Rated Frequency | 50Hz±10% |
| Rated Current | 45A, 55A, 85A |
| Harmonic Distortion | ≤5.0% |
| Control Voltage | DC5–12 V / 10 mA |
| Power Consumption | ≤4 VA |
| Response Time | ≤20 ms |
| Repetitive Switching Time | ≤0.5 s |
| Operating Temperature | -25 °C to +70 °C |
| Maximum Altitude | ≤2000 m |
| Dimensions (W×H×D) | 120 mm × 216 mm × 178 mm |
It requires an AC220 V ± 20 % supply at 50 Hz ± 10 %.
The response time is 20 ms or less.
The unit measures 120 mm wide, 216 mm high, and 178 mm deep.
Installation and maintenance must be performed by qualified personnel and the power must be disconnected before any work.