Factory Supply Indoor Use Switchgear Cabinet-Kyn28A-12 (GZS1)

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 Overview

KYN28A-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.















Model Specification





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.

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Product Categories : HV Whole Set Switchgear