TKHD1 Low Voltage Distribution Switchgear for Nuclear Power Station

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The TKHD1 low voltage switchgear adopting cable of Class 1E and Category K3 is specially developed by our company for use in the distribution system of nuclear power station with million-kilowatt unit. It is used to supply power for the emergency equipment in the nuclear plant. In addition to the characteristics of conventional products, our product has made breakthrough in the aspects of seismic resistance and aging resistance. The service life of the cabinet body and the components is 40 and 20 years respectively. Under earthquake load and specified accident environmental conditions, our product is able to perform its functions normally.

TKHD1 Low Voltage Distribution Switchgear for Nuclear Power Station

Our TKHD1 low voltage switchgear conforms to the RCC-E (version 1993) and GB7251.1. It has passed the type test, accelerated aging test, and seismic test in China's authoritative testing organizations. It is also passed the 3C certification.

In addition, this product can also be used for non-safe-grade nuclear power systems.

Basic Technical Parameters

Item (unit)		Data
Rated insulation voltage (V)	Main circuit	690
Rated operating voltage (V)	Main circuit	380
Rated operating voltage (V)	Auxiliary circuit	DC110, DC220, AC220, AC380
Rated operating current (A)	Main busbar	1000, 1250, 1600, 2000, 2500
Rated operating current (A)	Vertical busbar	1000
Rated short-time withstand current (kA/1s)	Main busbar	50 (3 times)
Rated short-time withstand current (kA/1s)	Vertical busbar	35 (3 times)
Rated peak withstand current (kA/1s)	Main busbar	105
Rated peak withstand current (kA/1s)	Vertical busbar	73.5
Protection class		IP4X
Dimensions	Width (mm)	600, 800, 1000
	Depth (mm)	1000
	Height (mm)	2200
Security class		Class 1E

Related Names
Low Voltage Switchboard | Safety Power Supply Equipment | Power Distribution Assembly

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