JYN1-35(F) AC metal sealed and movable switch board(in the
following we call switch board ) is a type of metal sealed
switching equipment for interior device using three phases and 50Hz
frequency AC, it can be used in power plant as well as on
distribution equipment complex of single bus or single bus segment
whose system rated voltage is 35kv, the maximal rated current is
1000A and the highest voltage does not exceed 40.5kv in transformer
room. This type of switchboard has "five prevention"function:
Breaker for preventing operation by mistake, preventing lord's
pushing or pulling lorry, preventing attachment to earth with
electrical, preventing feeding earth connection and preventing
entering electric gap by mistake.
Ambient condition for normal operation
A. Altitude dose not exceed 1000m.
B. Ambient temperature range from -5to 40(-30 for storage or
C. Relative humidity: Average value is less than 95% per day,
average value is less than 90%per month.
D. Ambient atmosphere should not be apparently polluted by
corrosive gas or steam.
E. Having some durable dirty capacity no chronic spang. In any
special case, custom should use it after negotiating and having
make agreement with maker. As to inner insulation, the device need
not special measures because its insulation is constant with any
altitude and the same as low voltage
Accessory equipment in the case of altitude is less than 2000m.
The primary element assembled on the switch board includes lack oil
circuit breaker or vacuum breaker, function mechanism, current
mutual inductor, voltage mutual inductor, fuse, lightning arrester,
electric power transformer and so on, on the condition that the
equipment has, these elements should have their own technique
Switchgear (JYN1-35(F)) Images