Earthing ground switch 12KV 31.5KA JN15 from JUCRO Electric
Earthing ground switch 12KV 31.5KA from JUCRO Electric
Earthing ground switch 12KV 31.5KA JN15 from JUCRO EleCTric
1. Introduction
JN15-12 series indoor high voltage earthing switch is a compositional type, and the technical parameters is corresponding to the requirements of IEC62271-102:2002. It is applicable for three-phase power system of 3-12kv, AC 50HZ. It can be used together with many types high voltage Switchgear as a earthing protection unit.
2. Applicable environment
2.1 Altitude should not exceed 1000 m
2.2 The ambient temperature: -25℃~ +40℃
2.3 The seismic intensity should not exceed 8 degree.
2.4 Relative humidity should not exceed 95%, monthly average value should not exceed 90%.
2.5 Pollution degree: Ⅱ
Main technical parameters
Item | Unit | Data | ||
Rated voltage | KV | 12 | ||
Rated short-time withstand current | KA | 31.5 | ||
Rated short-circuit duration time | S | 4 | ||
Rated making current | KA | 80 | ||
Rated withstand current(peak value) | KA | 80 | ||
Pole to pole distance | mm | 150,210,230,250,275 | ||
Rated insulation level | Power frequency withstand voltage(1 min) | KV | To earth, phase to phase | 42,48 |
Dimensions
Model No. | L | E | C |
JN15-12/31.5-210 | 655 | 210 | 516 |
JN15-12/31.5-230 | 710 | 230 | 556 |
JN15-12/31.5-250 | 760 | 250 | 596 |
JN15-12/31.5-275 | 810 | 275 | 646 |
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