KYN28-24 Withdrawable Metal-clad Switchgear

KYN28-24 (Z)(GZS1) Withdrawable Metal-clad Switchgear (here-inafter referred to as “switchgear”) is suitable for three-phase AC 50Hz power system, used to receive and distribute electric energy and control, protect and monitor circuits.

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KYN28-24 Metal-clad Withdrawable Switchgear.pdf

Description

Overview

This product complies with the following standards: GB3906-2006 “3.6-40.5kV AC metal-enclosed switchgear and controlgear”, GB/T11022 “Common technical re-quirements for high-voltage switchgear and controlgear standards”, IEC62271:200 “Rated voltage 1kV above 52 below AC metal-enclosed switchgear and control-gear”, DL/T404 “Technical conditions for ordering indoor AC high-voltage switch-gear”.

Operating Conditions

1. Ambient temperature: -15℃ ~+40℃;

2. Altitude: 1000m;

3. Relative humidity: daily average 95%, monthly average 90%;

4. Seismic resistance: 8 magnitude;

5. Occasions without flammable and explosive matter, without corrosive chemical and frequent severe vibration, without strong shake;

6. When used under normal environmental conditions exceeding those specified in GB3906, the user and the manufacturer shall negotiate.

Model and meaning

KYN28-24-model

Technical Specification

Item			Unit	Data
Rated voltage			KV	24
Rated frequency			Hz	50
Rated current(circuit breaker)			A	630/ 1250/ 1600/ 2000/ 2500/ 3150/4000
Rated current(switchgear)			A	630/1250/ 1600/ 2000/ 2500/ 3150/4000
Rated short-time withstand current (4s)			KA	16/ 20/ 25/ 31.5/ 40/ 50
Rated peak withstand current※			KA	40/ 50/ 63/ 80/ 100/ 125
Rated short-circuit breaking current			KA	16/ 20/ 25/ 31.5/ 40/ 50
Rated short-circuit making current※			KA	40/ 50/ 63/ 80/ 100/ 125
Rated insulation level	1min.P.F. withstand voltage	Between Phases	KV	65
		Phases to Ground		79
	Lightning impulse withstand voltage (peak)	Between Phases	KV	125
		Phases to Ground		145
Protection class			Enclosure: IP4X, IP2X (VCB Door opened)