High Voltage Earthing Switch For Earthing Protection 2000 Life
Times
Using environment:
1, Ambient air temperature limit: +40, lower limit: -20 degrees
centigrade
2, The altitude is not more than 1000mm. If more than 1000mm,
please indicate when ordering;
3, The average daily value of relative humidity is not greater than
95%, and the average monthly value is not greater than 90%;
4, The intensity of the earthquake is not more than 8 degrees;
5, Pollution class: II
Details
The Indoor high voltage Eartihng switch JN15-24/31.5 is new design
type earthing switch . The design of advanced structure is simple
and the technical performance is reliable , fit with standard
GB1985-2004 <AC voltage load breaker swith and earthing switch
> and standard IEC62271-102; 2002 . Lend itself to power systerm
with indoor 24kV three phase alternating current 50(60)Hz .
It can protect so many electrical equipments , and concurrent use
with so many switchgears . Altitude is after 1000M . (Compared with
the permanent magnetic type, which is mainly the control and
operation mechanism, the fixed seal type is the projectile type,
and the permanent magnetic type is the controller) The whole
cabinet is called the armor type moving medium metal closure switch
equipment, which is divided into three layers, the upper layer is
the bus and the instrument panel(separate), the middle layer is the
circuit breaker room and the lower layer is the cable room. Because
the circuit breaker has been in the middle, so called the armor
type to move the type of metal closure switch equipment, short for
the cabinet. (2) The central cabinet is a type of switchgear used
by end users. It is fully functional and large in size, while the
ring cabinet is a type of switchgear used to connect two power
sources or parts of a ring network.
The main function is to divide the two sections into two parts.
There are many kinds of lockers, which can be divided into the
switchboard, the measuring cabinet, the transformer cabinet, the
change cabinet used, and so on. The switch in the cabinet may be
equipped with an automatic protection device.
| Item | Technical data |
| Rated voltage (KV) | | | | 24 | |
| Rated frequency(Hz) | 50 |
| Insulator(capacity) | insulating | Frequency withstand voltage 5 min (KV) | | | | 68 | |
| Frequency withstand voltage 1 min (V) | 2000 |
| Lighting impulse withstand voltage (KV) | | | | 125 | |
| Local discharge (pc) | |
| Dispute bend (N) | |
| |
