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KYN28-24 Metal-clad Withdrawable Enclosed Switchgear


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KYN28A-24 armored removable AC metal-enclosed switchgear (hereinafter referred to as switchgear), The switchgear is in the metal armored removable structure, and is equipped with midmounted circuit breaker handcart. suitable for indoor three-phase 50/60HZ, rated voltage 24kV power system, mainly used in power plants, substations, industrial and mining enterprises And in high-rise buildings, it is used to receive and distribute electric energy and control, protect and monitor the circuit.

Product Description

Overview

KYN28A-24 switchgear has various functions to prevent misoperation, including preventing the handcart from moving with load, preventing the circuit breaker from closing in the closed position of the grounding switch, preventing the grounding switch from being closed with electricity, and preventing accidental entry into the live compartment. The switchgear is equipped with excellent VS1, VN2 series mid-mounted high-voltage AC vacuum circuit breakers and solid-sealed vacuum switches. The secondary circuit of the switchgear is equipped with advanced and reliable control and protection components; the busbar adopts heat-shrinkable insulating material or epoxy-coated insulating means, optimizes the shape of the electrode, and has a compact cabinet structure. The switchgear is advanced in technology, stable in performance, and reasonable in structure. Easy to use, safe and reliable power distribution equipment.

Product Paramenters

Item		Unit	Specifications
Rated Voltage		kV	24
Rated Frequency		Hz	50/60
Rated Insulation Level	Lightning Impulse Withstand Voltage (Peak)	kV	60 (Between phase to earth);79(Disconnect break)
	1 min Power Frequency Withstand Voltage(Value)	V	125 (Between phase to earth); 145 (Disconnect break)
	Auxiliary Control Loop Power Frequency Withstand Voltage	V	2000
Rated Current		A	630,1250,1600,2000,2500,3150
Rated Short Circuit Breaking Current		kA	31.5
Rated Short Circuit Closing Current		kA	80
Rated Short Time Withstand Current(4s)		kA	31.5
Rated Peak Withstand Current		kA	80
Auxiliary Control Loop Rated Voltage		V	AC or DC 110/220
Protection Level			IP4X

Model meaning

MODEL:KYN28A-24Z	K: Metal armored
	Y: move away
	N: Indoor
	28A: Design serial number
	24: Rated voltage (kV)
	Z: Vacuum circuit breaker

Conditions of Use

Environmental conditions: the highest temperature is +40C, the lowest temperature is -15℃, and the average value measured within 24h does not exceed 35℃;
The temperature conditions are as follows: the average daily relative humidity does not exceed 95%; the average monthly relative humidity does not exceed 90%; the average daily water vapor pressure does not exceed 2.2kPa; the average monthly water vapor pressure does not exceed 1.8kPa ；
The altitude does not exceed 1000m;
The surrounding air is not significantly polluted by dust, smoke, corrosive or flammable gas, steam or salt spray;
Vibration or ground motion from outside the switchgear and control equipment can be ignored;
The magnitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV.