LZZBJ9-10D Casting Resin Epoxy Resin High Voltage Current
Transformer
1. As mentioned above, the function of the ring cabinet is simple,
it is to connect different power parts, generally do not use it to
realize the control, protection and measurement of specific
electrical equipment; If you really need these things, it must be
you choose the wrong, should choose the cabinet; Where there is
high pressure, high pressure measurement should be given priority
over low pressure measurement; When there is no way to measure it,
low pressure measurement is considered. At this point, the low
voltage measuring cabinet should be placed in the front of the low
voltage entry line, behind the transformer, from the surface, it is
not under the protection of Jilianggui, but in general, it should
be in the transformer.
2. So the ring net cabinet is not only used as the contact switch
cabinet, but also as the loop in and out of the switch cabinet,
measuring cabinet, PT cabinet. Loop-in and loop-out switchgear not
only can load switch-fuse combination, but also can load circuit
breaker, such as domestic HXGN, Schneider SF6, Siemens 8DH, and
second protection can install microcomputer protection device. But
the ring net cabinet breaker has the load limit, each factory's
ring net cabinet limits are different. If Schneider RM6 ring net
cabinet, Transformer high voltage switch protection is greater than
2000 KVA capacity, must adopt circuit breaker + VIP 300
microcomputer protection. However, the load of the in-and-out line
of the cabinet is not limited(except the larger load is 1 meter
wide).
Item | Technical data |
Rated voltage (KV) | 3.6 | 7.2 | 12 | 24 | 40.5 |
Rated frequency(Hz) | 50 |
Insulator(capacity) | insulating | Frequency withstand voltage 5 min (KV) | 25 | 32 | 42 | 68 | 100 |
Frequency withstand voltage 1 min (V) | 2000 |
Lighting impulse withstand voltage (KV) | 40 | 60 | 75 | 125 | 185 |
Local discharge (pc) | ≤10 |
Dispute bend (N) | ≥1000 |
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