KYN28-12 Steel-Clad Movable Type AC Metal Insulation-Enclosed Switchgear

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This series of switchgear is applicable for 3-phase 50Hz AC electric system, which can receive and distribute electric energy, and protect and monitor circuits.

It is in conformity with these standards: GB3906 “3~35kV AC Metal Insulation-Enclosed Switchgear”, GB/T11022 “Shared Technical Requirements of Standards for High Voltage Switchgear and Control Equipment”, IEC-60298 “AC Metal Insulation-Enclosed Switchgear and Control Equipment at Rated Voltage Above 1kV and 50kV and Below” and DL/T404 “Indoor AC High Voltage Switchgear Technical Permission”.

Product introduction

Working conditions:
1. Ambient temperature: +40℃~-15℃
2. Humidity: average daily humidity≤95%, average daily vapor pressure≤2.2Kpa, average monthly humidity≤90%, average monthly vapor pressure≤1.8Kpa
3. Altitude: ≤3000m
4. Earthquake intensity: ≤8°
5. No corrosive or inflammable gas or vapor
6. No frequent severe vibration

Technical parameters:

Items			Units	Values
Rated Voltage			kV	3.6,7.2,12
Rated Frequency			Hz	50
Rated Current of Circuit Breaker			A	630, 1250, 1600, 2000, 2500, 3150
Rated Current of Switchgear			A	630, 1250, 1600, 2000, 2500, 3150
Rated Short Time Withstand Current (4S)			kA	16, 20, 25, 31.5, 40
Rated Peak Withstand Current (Peak)			kA	40, 50, 63, 80, 100
Rated Short Circuit Breaking Current			kA	16, 20, 25, 31.5, 40
Rated Short Circuit Making Current (Peak)			kA	40, 50, 63, 80, 100
Rated Insulation Level	1min Power Frequency Withstand Voltage	Phase to Phase, Phase to Ground	kV	24, 32, 42
	1min Power Frequency Withstand Voltage	Breaking	kV	24, 32, 48
	Lightning Impulse Withstand Voltage (Peak)	Phase to Phase, Phase to Ground	kV	40, 60, 75
	Lightning Impulse Withstand Voltage (Peak)	Breaking	kV	46, 70, 80
IP Code			kV	Outer Shell: IP4X, Compartments and Circuit Breaker Chamber Door: IP2X