SFD-9 type high voltage circuit breaker simulation device is mainly used for the whole group test of relay protection device and in the backup power self-throwing device test and other projects to replace the real high voltage circuit breaker. This simulation device uses a single chip microcomputer as the control core to realize the simulation of high voltage circuit breaker jump, closing time setting, input signal logic control and other functions, so as to simulate the jump, closing action of high voltage circuit breaker, and provide a set of completely isolated DC voltage output. The device is simple and reliable to operate.
This manual describes the SFD-9 high‑pressure breaker analog unit, its purpose, and key functions. It explains how the device integrates with high‑voltage circuit breakers to provide reliable protection and control in industrial power systems.
The document covers power connections, panel operation, timing adjustments, contact ratings, and safety precautions. It also includes warranty information and contact details for technical support. This manual is written in Chinese.
| Main power supply | AC 220 V / 4 A |
|---|---|
| Control power source | DC 110 V or 220 V |
| Contact resistance options | 0.6 Ω, 100 Ω, 200 Ω, 400 Ω |
| Contract timing range | 100 ms – 500 ms |
| Release timing range | 20 ms – 100 ms |
| Contact rating | AC 220 V / 5 A |
| Moving carriage power | AC 220 W / 44 A |
The unit needs a main AC supply of 220 V / 4 A and a control DC supply of either 110 V or 220 V.
Contract timing can be set between 100 ms and 500 ms, while release timing can be set between 20 ms and 100 ms.
The contacts are rated for AC 220 V at 5 A.