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Kyn28A-12 (GZS1) Switchgear Indoor Use

Basic Info

Model No.:  KYN28A-12(GZS1)

Product Description

Model NO.: KYN28A-12(GZS1) Shell Material: Steel Plate Function: Controlling, Protection&Monitoring Environment: Indoor Form: All- Packaged Type Shell Protection Grade: IP4X Origin: Jiangyin Yunfeng, China Certification: ISO9001:2000 Structure: Protection Standards: Dl/T 404-2007, IEC298 & GB3906 Type: Power Operation Voltage: High Voltage Trademark: YF Product OverviewKYN28A-12(GZS1) indoor metal-clad extraction type switchgear("centrally installed switchgear") is 3-12kV three-phase AC 50 Hz whole set of power distribution device with single bus and single bus sectioning system. It is mainly applied for the power transmission of power plants, small and medium generators, power distribution of mining and intrustrial enterprises and power receiving, transmission of sencondary substation of electric utility system and start of large HV motor,ect., and it is used for control ,protection and monitoring.The equipment meets requirements standards DL/T 404-2007, IEC 298 and GB 3906, ect. It has interlocking functions of preventing pull and push of Circuit Breaker handcart with load, preventing false opening and closing Circuit breaker, preventing making of circuit breaker when the earthing switch is at the closing position,preventing entry into live cubicle and preventing mis-closing the earthing switch when the earthing is under live conditions. It can be equipped with not only VS1, V2000, VS1+Vacuum circuit breaker, but also VD4 Vacuum Circuit Breaker manufactured by ABB. It is a device with superior performance.



Kyn28A-12 (GZS1) Switchgear Indoor Use     Kyn28A-12 (GZS1) Switchgear Indoor Use



Model Specification
Kyn28A-12 (GZS1) Switchgear Indoor Use

Application:
It is mainly applied for the power transmission of power plants, small and medium generators, power distribution of mining and industrial enterprises and power receiving, transimission of sencondary substation of electric utility system and start of large HV motor, etc. and it is used for control,pretection and monitoring.

Functions:
1. preventing pull and push of circuit breaker handcart with load;
2. preventing false opening and closing circuit breaker; 
3. preventing making of circuit breaker when the earthing switch is at the closing position;
4. preventing entry into live cubicle;
5. preventing mis-closing the earthing switch when the earthing is under live conditions

Main Technical Parameters
Serial No. Item Unit VS1,VYF1 VD4
1 Rated voltage kV 7.2, 12
2 1 min power-frequency withstand voltage kV 42
3 Lightning impluse withstand voltage(peak) kV 75
4 Rated frequency  Hz 50
5 Rated current A 630, 1250, 1600, 2000, 2500, 3150
6 Rated short-circuit breaking current(effective value) kA 16, 20, 25, 31.5, 40, 50 
7 DC component  % 35
8 Rated short-circuit making current kA 40, 50, 63, 80, 100, 125
9 4s thermal stability current(peak) kA 16, 20, 25, 31.5, 40, 50
10 Rated dynamic stability current(peak) kA 40, 50, 63, 80, 100, 125
11 Rated operation sequence   Opening-0.3min-closing,opening-3min-closing,opening
12 Operation sequence of automatic reclosing lock   Opening-0.3s-closing,opening-3min-closing,opening
13 Operation sequence of multiple reclosing   Opening-0.3s-closing,opening-15s-closing,opening
14 Rated voltage of opening, closing and auxiliary loop V DC24, 110, 220; AC110, 220
15 Protection level   IP4X(enclosure); IP2X(opening of circuit breaker door)
16 Closing time ms ≤100 ≈70
17 Opening time ms ≤50 ≤45
18 Arc time  ms ≤15 ≤15
19 Breaking time  ms ≈65 ≤60
Note: The short-time thermal stability current and dynamic stability current of current Transformer are related to the ratio of transformation and they shall be confirmed specifically in ordering.

Kyn28A-12 (GZS1) Switchgear Indoor UseKyn28A-12 (GZS1) Switchgear Indoor UseKyn28A-12 (GZS1) Switchgear Indoor Use

Contact us if you need more details on Switchgear. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Power Distribution、Centrally Installed Switchgear. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : HV Whole Set Switchgear

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