Indoor Armored Removable Ac Metal-Enclosed Switchgear Supplier

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Indoor Armored Removable Ac Metal-Enclosed Switchgear

Indoor Armored Removable Ac Metal-Enclosed Switchgear

The KYN550-12 lindoor Armored Removable Ac Metal-Enclosed Switchgear (hereinafter referred to as KYN550 switchgear) is ourcompany's comprehensive distribution equipment set, designed for 12kV three-phase AC 50Hz single busbar and single busbarsegmented systems. The KYN550 features a "five-prevention" interlock function, safeguarding against the loaded push-pull olcircuit breaker handcarts, accidental opening or closing of circuit breakers, closing of circuit breakers when the grounding switch isin the closed position, entry into live compartments, and accidental closure of grounding switches while live. Equipped with indoormedium voltage solid-sealed vacuum circuit breaker handcarts, it is a high-performance distribution equipment. The dimensions othe KYN550 are designed to significantly conserve distribution space for customers, primarily intended for commercial andindustrial bulldings, real estate, data centers, and other industrial power grids demanding miniaturization, such as substations.

Regular service conditions

Ambient air temperature: +40℃ for upper limit,-25°C for lower limit; Altitude: The altitude of the installation site shall not exceed 1000m; Ambient temperature: The daily average relative humidity is not greater than 95%, and the monthly average relative humidity is not greater than 90%.
Seismic intensity no more than 8 degrees; The ambient air is free of corrosive or combustible gases, water vapour, etc.
No serious pollution or frequent violent vibration. The harshness design under harsh conditions shall meet the requirements of Class 1.
Special working conditions

When used in excess of the normal environmental conditions specified in GB3906 and these technical conditions, the user and the manufacturer shall negotiate it.

No. Item Unit Parameters
1 Rated voltage KV 12
2 Rated frequency Hz 50
3 Rated power frequency withstand voltage (1min) KV 42/48 (Fracture)
4 Rated lightning impulse withstand voltage (value) KV 75/85 (Fracture) 
5 Rated current A ≤1250
6 Rated short-time withstand current (4s) KA ≤31.51)
7 Rated peak withstand current (peak) KA ≤802)
8 Main loop resistance μΩ <100+CT 2)
9 Protection grade KV IP4X
KV IP2X

Notes: 1) The rated short-time withstand current and rated peak withstand current of the current transformer are related to their ratio and need to be confirmed when ordering.
2) Includes DC resistance of the current transformer

Parameters (unit) Data
Width A (mm) 550
Height B (mm) 2250
Depth C (mm) 1400(1550)
Weight (Kg)(approximate) 400-700
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