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KYN28-12 medium voltage switchboard descriptions
K---------------------------------------metal-clad
Y---------------------------------------withdrawable
N---------------------------------------Indoor
1---------------------------------------design No.
12-------------------------------------- rated voltage (KV)
-------------------------------------- primary wiring plan No.
--------------------------------------operating mode
D: electromagnetic operating T: spring operating
--------------------------------------environment characteristics
TH: subtropical area TA: Xerothermic area G: high altitude
swichgear General
The structure of KYN1-12 medium voltage switchboard is formed by welded bent steel plate. It includes former cabinet, back cabinet, relay instrument room and handcart which are separated by the grounding metal clapboard. The protection degree of the shell is IP2X
There is circuit breaker handcart, isolation handcart, voltage transformer handcart, voltage transformer arrester handcart, transformer used handcart and grounding handcart. The handcart applies the shakable feed mechanism and the accurate and reliable handcart positioning device. The handcart faceplate is the cabinet door; with emergency opening button to break the circuit breaker when the handcart is pull out from the working position or when the circuit breaker secondary control circuit losing power
KYN28-12 medium voltage switchboard Technical parameters
Item | Unit | Value | ||
Rated voltage | KV | 3, 6, 10 | ||
Rated current | A | 630,1000,1250,1600, 3150 | ||
specified short circuit drop-out current | KA | 16/20*31.5, 40 | ||
External dimension (W*D*H) | Overhead inlet and outgoing | mm | 800*1600*2280 | 1000*1650*2282 |
Cable inlet and outgoing | 800*1500*2282 | 1000*1500*2282 | ||
KYN28-12 medium voltage switchboard type test report