HXGN professional custom air insulated mv ring main switchgear
ring main switchgear
- Compact modular design
- Simple structure, small volume and light weight
- Ease and flexible for installation
- Reliable and safe to operate
- Low operating cost
It is a new product self-designed and self-developed by introducing oversea advanced techniques and the requirements of rural and urban power network reform. The core parts are load switch, switch-fuse combinations or circuit breaker.
It is applicable to the ring network or terminal power supply system with three-phase AC 50Hz, rated voltage of 12kV, rated current of up to 630A. It is widely used in the load center powder distribution station of urban residential area, high-rise building, large public buildings, factories and enterprises as power receiving and distribution or overload protection, short circuit protection; As a ring network power supply unit and terminal equipment, it plays role in the power distribution, power controlling and electrical equipment protection, so it is widely installed in prefabricated substations.
- Ambient air temperature : -5°C ~ +40°C;
- Daily average temperature(Within 24h): ≤+35℃
- Altitude:≤1000m;
- Relative humidity: within 24h, daily average value ≤ 95% , daily average vapor pressure≤ 2.2KPa; monthly average value ≤ 90%, monthly average vapor pressure≤ 1.8KPa
- Ambient air is not significantly polluted by dust, smoke, corrosive and / or flammable gas, vapor or salt contamination.
If the switchgear will be used in conditions that exceed the normal
environmental conditions, users should consult with the
manufacturer.
Item(Unit) | Data | |
Load Switch | Switch-fuse Combinations | |
Rated Voltage(kV) | 12 | |
Rated Current(A) | 630 | 125 |
Rated Frequency(Hz) | 50 | |
Rated Short-time Power Frequency Withstand Voltage(kV) | 42 | |
Rated Lightning Impulse Withstand Voltage(kV) | 75 | |
Rated Peak Withstand Current(kA) | 20 | |
4S Rated Short-time Withstand Current(kA) | 50 | |
Rated Short-circuit Making Current(kA) | 50 | 80 |
Rated Power load Drop-out Current(A) | 630 | |
Rated Short-circuit Drop-out Current(kA) | 31.5 | |
Rated Transfer Current(A) | 1700 | |
Standard | GB3906,GB3804 | GB3906,GB12926 |
Protection Degree | ≤IP3X | |
