JN15-12/31.5kA-210mm High Voltage Earthing Switch / Ground Switch Simple Structure
JN15-12/31.5kA-210 Earthing Switch with High Voltage Switchgear
The maximum rated current is only 630A, and the circuit breaker can reach 3000A above(there are more than 4000A in foreign countries). The maximum rated current is only 630A, and the circuit breaker can reach 3000A or above(there are currently more than 4000A in foreign countries). The circuit breaker is usually short-circuit-protected. In case of overload, it takes a certain time(and can not be adjusted unless the internal fuse is replaced) to cut off the hot fuse of the internal fuse of the circuit, and the inner voltage switch is used to protect the overload of the device Or sulphur hexafluoride load switch.
1. JN15-12 Indoor High Voltage Eartihng switch's performance is fit the bill GB1985-89< AC voltage load brekaer switch and earthing switch > and IEC129 .
2. Lend itself to 12kV voltage 50HZ power system .
3. Fit with so many types high voltage switchgear equipments , use to protect epuipment .
4. Simple structure , easy to install .
5. Altitude is after 1000M .
6. Temperature is from 400 degree to -100 degree .
| Item | Technical data | ||||||||||||
| Rated voltage (KV) | 12 | ||||||||||||
| Rated frequency(Hz) | 50 | ||||||||||||
| Insulator(capacity) | insulating | Frequency withstand voltage 5 min (KV) | 42 | ||||||||||
| Frequency withstand voltage 1 min (V) | 2000 | ||||||||||||
| Lighting impulse withstand voltage (KV) | 75 | ||||||||||||
| Local discharge (pc) | |||||||||||||
| Dispute bend (N) | |||||||||||||
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