KYN28A-24 armored removable AC metal enclosed switchgear

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KYN28A-24 armored removable AC metal enclosed switchgear is applicable to indoor three-phase 50/60 Hz power system with rated voltage of 24 kV, mainly used in power plants and substations In industrial and mining enterprises and high-rise buildings, it receives and distributes electric energy and controls, protects and monitors circuits. KYN28A-24 switchgear equipment has various functions to prevent misoperation, including preventing the mobile handcart with negative charge, preventing the short circuit at the closed position of the grounding switch, and preventing the electrification of the grounding switch.

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400-0571-505

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Detailed introduction

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Product Overview

KYN28A-24 armored removable AC metal enclosed switchgear is applicable to indoor three-phase 50/60Hz power system with rated voltage of 24kV, mainly used in power plants and substations In industrial and mining enterprises and high-rise buildings, it receives and distributes electric energy and controls, protects and monitors circuits. KYN28A-24 switchgear equipment has various functions to prevent misoperation, including preventing the mobile handcart with negative charge, preventing the short circuit at the closed position of the grounding switch, and preventing the electrification of the grounding switch.

KYN28A-24 switchgear is equipped with advanced and reliable control and protection components. The bus adopts heat shrinkable insulation materials or epoxy coated insulation methods to optimize the electrode shape. The cabinet is compact in structure. YN28A-24 switchgear room is a distribution equipment with advanced technology, stable performance, reasonable structure, convenient application, safety and reliability.

Model and meaning

Conditions of Use

·Ambient temperature: maximum temperature:+40 ° C, minimum temperature: - 15 ° C, and the average temperature measured within 24h shall not exceed 35 ° C.

·The temperature conditions are as follows: the average value of daily relative humidity does not exceed 95%

The average monthly relative humidity shall not exceed 90%

The average daily steam pressure shall not exceed 2.2kpa, and the average monthly steam pressure shall not exceed 8kpa

·Condensation occasionally occurs under such conditions.

·Altitude not exceeding 1000m

product mix

Main technical data

name	Company	parameter
Rated voltage	kV	24
Rated frequency	Hz	65 (interphase, to ground)/79 isolating fracture)
Rated current	A	125 (interphase, to ground)/145 (isolating fracture)
Rated short-circuit breaking current	kA	50
Rated short-circuit making current	kV	1250
4s rated short-time withstand current effective value)	kV	25
Rated dynamic stability current (peak value)	kV	63
1 min power frequency withstand voltage (effective value)	kV	25
Rich impulse withstand voltage (peak value)	kV	63
Rated operating sequence	Hz	Opening - 0.3 min - closing opening - 0.3 min - closing opening
Degree of protection		IP4X (housing): IP2X (circuit breaker door] open)

Ordering Instructions

Users shall provide the following information when ordering products:

·Full model of the product (including main circuit scheme number and auxiliary circuit scheme number);

·Combination sequence diagram of main circuit system;

·Electrical schematic diagram of auxiliary circuit;

·List of components in the cabinet;

·Other special requirements of the product shall be mentioned separately.

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