RMU
RMU is a set of factory-assembled switchgear employed at load connection points. It consists of a fusible switch, circuit breaker, switches that feed a distribution transformer, and two switches that can connect the load to one or both main conductors.
RMUs are widely used in urban areas, industries, and commercial buildings where uninterrupted power supply is essential. An RMU operates within a ring-type power distribution system, allowing electricity flow in multiple directions.
| TYPE | RMU 12 | RMU 24 | RMU 36 |
|---|---|---|---|
| Rated Voltage | 12 kV | 24 kV | 36 kV |
| Rated Network Frequency Withstand Voltage (1 min) | 28 kV | 50 kV | 70 kV |
| In Separation Range (Between contacts in open position) | 32 kV | 60 kV | 80 kV |
| Rated Lightning Impact Resistance Voltage (1.2 / 50 µs) | 75 kV | 125 kV | 170 kV |
| In Separation Range (between contacts in open position) | 85 kV | 145 kV | 195 kV |
| Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Rated Current | 630 A | 630 A | 630 A |
| Rated Short Circuit Current (1sec) (3sec) | 25 kA | 20 kA | 16 kA |
| Rated Short Circuit Closing Current | 62.5 kA-tepe | 50 kA-tepe | 40 kA-peak |