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DELIXI Withdrawable Metal-clad AC Switchgear,KYN28A-24(SDK1-24),24kv,50/60HZ0 pages
SWITCHGEAR | Catalog
KYN28A-24(SDK1-24)
Metal-Clad AC Withdrawable
Switchgear
(Installation and Operation
Instruction)
1. Introduction
1.1 Overview
KYN28A-24(SDK1-24) withdrawout metal-enclosed AC Switchgear (hereafter referred to as "switchgear") is used for
the three-phase 50/60Hz, rated voltage of 24kV electric power system, such as power plants, electric power substations,
industrial & mining enterprises and high-rising buildings, used as the power receiver and distribution as well as circuit control,
protection and monitor.
KYN28A-24(SDK1-24) switchgear is provided with various functions which can avoid faulty operations that include preventing
handcart moving with load, circuit breaker closing as earthing switch at closing site, closing earthing switch with power and
mis-entering charged compartment. The switchgear is equipped with good-performance VS1, VN2 series HV AC vacuum
circuit breaker and enclosed type vacuum switch. The secondary circuit of switchgear is equipped with high-quality control
and protection components; the busbar adopts pyro-condensation insulating material or epoxy coating insulation, it has an
optimized electrode shape and compact cabinet structure. The switchgear has advanced technology, stable performance,
reasonable structure, and easy utility, which is a reliable power distribution facility.
1.2 Applicable standards
a) GB1984 High-voltage alternating-current circuit breaker.
b) GB3906 3~35kV alternating-current metal-enclosed switchgear.
c) GB/T11022 Common specifications for high-voltage switchgear and controlgear standards.
d) DL/T404 Ordering technical qualification of indoor AC high-voltage switch cabinet.
e) DL/T593 Common ordering qualification guide of high-voltage switchgear.
1.3 Working environment
1.3.1 General working environment
a) Environmental temperature:
Highest temperature: +40^ ; lowest temperature: -15^ ; daily average temperature 35^3 ;
b) Environmental humidity:
Daily relative average humidity s= 95%;
Monthly relative average humidity s£ 90%;
Daily average water vapor pressure =s 2.2kPa;
Monthly average water vapor pressure s£ 1.8kPa;
Condensation may occur occasionally;
c) Altitude: s= 1000m;
d) No pollution such as dust, smoke, corrosive or flammable gas, steam or salt fog;
e) The slight vibration or ground movement outside of the switchgear and control equipment can be neglected.
f) The electromagnetic interference of the secondary system should =s 1.6kV.
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