Page 291 - L . V S W I T C H G E A R
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RING MAIN hNIT intelligent
Low voltage
LEFT:
ŵĂŝŶ ĐŝƌĐƵŝƚ ďƌĞĂŬĞƌ ͲͲͲͲ ϯϮϬ /ƚ ƚĂŬĞ ƚŚĞ ŽƵƚƉƵƚ ŽĨ ƚŚĞ
dƌĂŶƐĨŽƌŵĞƌ ϯϲϬǀ ʹ ϰϬϬ ǀ͕ ǁŚĞŶ KĐĐƵƌ ƚƌŝƉ ĚƌŽƉ ƚŽ
ŵŝĚĚůĞ͕ ŵĂŬĞ ŝƚ K&& dŽ Įdž ŝƚ ĂŌĞƌ ƚŚĂƚ ŵĂŬĞƐ ŝƚ KE͘
ͻ 3 current transformers.
ͻ 3 circuit breaker.
ͻ ĂƌƚŚ ďĂƌ ĂŶĚ ŝƚƐ ĐŽƉƉĞƌ ƉĂƌƚƐ ĨŽƌ ƉƌŽƚĞĐƟŽŶ͘
RIGHT:
ͻ 3 ammeter scale.
ͻ 1 voltmeter scale.
The ammeter and voltmeter have 2 indexes: Red index
for max.Black index for min.
The mid its range
ͻ 2 key:
ZŝŐŚƚ͗ ĂƵƚŽŵĂƟĐ Žƌ ŵĂŶƵĂů Žƌ Žī ĨŽƌ ƟŵĞƌ͘
>ĞŌ͗ ŵĞĂƐƵƌĞ ƚŚĞ ǀŽůƚĂŐĞ ďĞƚǁĞĞŶ ƚǁŽ ƉŚĂƐĞ Žƌ ƉŚĂƐĞ Distributors:
and neutral.
ͻ 2 circuit breaker: It is consist of
Right: Responsible about power factor. ŝƌĐƵŝƚ ďƌĞĂŬĞƌ ʹ ĐŽƉƉĞƌ ďƵƐ ďĂƌ ʹ ĞĂƌƚŚ ƐǁŝƚĐŚ
>ĞŌ͗ ƟŵĞƌ ǁŝƚŚ ŝƚƐ ƐǁŝƚĐŚ͘ ʹ ĐƵƌƌĞŶƚ ƚƌĂŶƐĨŽƌŵĞƌ ʹ ǀŽůƚĂŐĞ ƚƌĂŶƐĨŽƌŵĞƌ ʹ
ƉƌŽƚĞĐƟǀĞ ƌĞůĂLJ ʹ ŵĞĂƐƵƌŝŶŐ ŝŶƐƚƌƵŵĞŶƚ ʹ ŝŶĚŝĐƚ-
ŝŶŐ ʹ ĐŝƌĐƵŝƚ ďƌĞĂŬĞƌ
(vacuam-sf6).
ŝƐƚƌŝďƵƚŽƌƐ͗ ƚǁŽ ŝŶĐŽŵŝŶŐ ʹ
ĨŽƵƌ ŽƵƚ ĐŽŵŝŶŐ ʹ ĐŽƵƉůĞƌ ʹ ZŝnjĞƌ͘
Incoming: going to voltage
transformer.
Outgaining: going to current
transformer.
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