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KYN61-40.5 Armored withdrawable AC metal-enclosed switchgear

The KYN61-40.5 armored metal-enclosed switchgear (refered to as switchgear) is an improved version of our original product. t is suitable forthree-phase Ac 50Hz power sytems and is used to receive and distribute electrical energy, as well as to contro, protect, and monitor circuits.

Overview

The KYN61-40.5 armored metal-enclosed switchgear (refered to as switchgear) is an improved version of our original product. t is suitable forthree-phase Ac 50Hz power sytems and is used to receive and distribute electrical energy, as well as to contro, protect, and monitor circuits.

This switchgear is equipped with various functions to prevent misoperation, including preventing the movement of the draw-out unit under load.preventing the closing of the grounding switch under power, and preventing unauthorized access to live compartments.The switchgear is equipped with high-performance ZN85, VN1 vacuum circuit breakers or ABB VD4, HD4 series vacuum circuit breakers. 

The switchgear is a technologicaly advanced, stable-performing, reasonably structured, user-fiendly, and safe and relable distribution equipment.

Model Meaning

Model Meaning

Terms of Use

▪ Ambient air temperature: Maximum temperature +40'C, minimum temperature -10℃;

▪ Altitude: ≤1000m;

▪ Ambient relative humidity: daily average ≤ 95%, monthly average ≤ 90%;

▪ Ambient air: not suitable for locations with corrosive, severely contaminated, flammable gases, or severe vibrations;

▪ In the event of an earthguake, the seismic intensity must not exceed 8 on the Richter scale.

Main technical parameters

Project Unit Parameters
Rated Voltage kV 40.5
Rated insulation level Lightning impulse withstand voltage(full wave) kV 185
Powerfrequency withstand voltage(1min) 95
Rated Frequency Hz 50
Rated Current A 630；1250；1600；2000
Rated short-circuit breaking time Power frequency withstand voltage(1min) kV 20、25、31.5
Rated short-circuit closing current(peak) kA 50、63、80
Rated dynamic stability current(peak) kA 50、63、80
4s thermal stability current(effectivevalue) kA 20、25、31.5
Ingress protection rating IP4X
Externaldimensions(w×dch) Vacuum circuit breaker cabinet mm 1400x2800x2600
SF6 circuit breaker cabinet

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