KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear Made in China - Suppliers and Manufacturers

Product Description

1.Product Introduction

KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear designed by Ningbo Tianan(Group)Co., Ltd (abbreviated as Switchgear below) is complete power distribution device of 3~10kV three phase AC 50Hz single busbar section system .It is basic component of 1 E grade medium voltage power system in nuclear power plant. It has functions or perform the support function of the plant emergency shut down, core cooling, heat radiation of containment and reactor, or prevent obvious leakage of radioactive substance. The switchgear satisfy IEC 298, GB3906, GB13625, IEEE649.IEEE323, IEEE344, HAF003 standards. Prevent on load pulling or withdrawing circuit truck, mis-CO circuit breaker, closing circuit breaker when the earthing switch is at closing position, mis entering live compartment. And interlock which prevent mis-closing earthing switch.. VEP vacuum circuit breaker and VEC vacuum contactor are produced by Ximen Huadian, a distribution device with superior performance.

2. Product Parameter (Specification)

Technical data of KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear

please see table 2 and table 3

Table 2 Technical data of switchgear (equipped with VEP)

No.	Name	Unit	Value
1	Rated voltage	KV	3.6,7.2,12
2	Rated current	A	1250,3150
3	Rated current of main busbar	A	3150
4	Rated frequency	HZ	50
5	Rated short-time withstand current	KA	50

Continued table 2 Technical data of switchgear (equipped with VEP)

No.	Name			Unit	Value
6	Rated short-circuit continuous time			s	4
7	DC constituent				52%
8	Rated peak withstand current			kA	150
9	Rated short-circuit breaking current			kA	50
10	Rated short-circuit making current			kA	150
11	Degree of protection			Enclosure is IP41, clapboard is IP2X
12	Rated insulation level	1 min power frequency withstand voltage	Phase to earth、between phase	kV	42
			Clearance between isolation		48
		Lighting impulse withstand voltage	Phase to earth、between phase		75
			Clearance between isolation		85
13	Main circuit resistance			μΩ	≤150,≤65
14	Secondary 1 min power frequency withstand voltage			kV	2
15	External dimension (W×D×H)			mm	800(1000)×1400×2250

Table 3 Technical data of switchgear (equipped with VEC)

NO.	Name			Unit	Value
1	Rated voltage			kV	3.6,7.2
2	Rated current			A	250
3	Rated current of main busbar			A	3150
4	Rated frequency			HZ	50
5	Rated short-time withstand current			kA	4
6	Rated short-circuit continuous time			S	4
7	Rated peak withstand current			kA	12.5
8	Rated expected short-circuit breaking current			kA	50
9	Rated short-circuit making current			kA	130
10	Degree of protection			Enclosure is IP41, clapboard is IP2X
11	Rated insulation level	1 min power frequency withstand voltage	Phase to earth、between phase	kV	32
		1 min power frequency withstand voltage	Clearance between isolation		36
		Lighting impulse withstand voltage	Phase to earth、between phase		60
		Lighting impulse withstand voltage	Clearance between isolation		70
12	Main circuit current			μΩ	≤450
13	Secondary circuit 1 min power frequency withstand voltage			kV	2
14	External dimension(W×D×H)			mm	325×1400×2250

3. Service condition of KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear

◆3.1Normal service condition
a. Mounting position: indoor e. 40yearirradiation accumulated value ≤1×102Gy;
b. Altitude: ≤1000m 60yearirradiation accumulated value ≤1.5×102Gy;
c. Relative humidity:90%(25℃) f. Pressure; normal pressure
d. Temperature:: -5℃<I≤40℃ g. Mechanical vibration, no vibration
Daily average highest temperature no higher than 35℃
Annual average temperature no higher than 25℃

◆3.2 Security Class, quality assurance and aging anti-seismic grade.
1 Security class:1E grade 2.Quality assurance class:QA1 class
3.Aging class:40 years 4.Anti-seismic:5 times OBE,1 time SSE

◆3.3Spercial service conduction
The beyond normal service condition regulated in 3.1,3.2,the customer shall negotiate with manufacturer.

4. Product features

a. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear is a kind of small metal –clad air insulated switchgear, it can save space effectively.
b. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear is complete in variety, equipment parameters are up to rated current 3150A, rated short circuit breaking current 50KA.
c. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear is safety, reliable and comprehensive in use.
d. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear is designed to mid-mounted type, and fitted with VEP indoor MV closed type vacuum circuit breaker or VEC vacuum contactor-fuse combined uni
e. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear has plenty cable connection space.
f. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear has perfect and reliable five-prevention blocking device.
g. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear can operate and maintain in the front of switchgear, and install against the wall.
h. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear is provided with earthing switch short circuit making capacity speediness closing.
i. KYN44A-12 1E Grade Mid-mount AC Metal-clad Switchgear and handcart have reliable earthing unit.