The KYN61-40.5 is an armored removable metal-enclosed switchgear (hereinafter referred to as the switchgear) designed for indoor use with a three-phase AC frequency of 50Hz and a rated voltage of 40.5kV. It serves as a complete distribution device for power plants, substations, and industrial enterprises, performing functions such as control, protection, and monitoring of electrical circuits. It is also suitable for locations requiring frequent operation.

Dimensions

1400mm x 2800mm x 2600mm

Structural Features

Armored metal design with modular structure and various combination options.            The cabinet is made from aluminum-zinc coated plates, processed by CNC and laser cutting equipment, utilizing advanced multi-fold edge technology, pop rivet nuts, and high-strength bolts. It features high precision, corrosion resistance, lightweight, high strength, and strong part interchangeability.            Compatible with various vacuum circuit breakers and SF6 circuit breakers, offering broad practicality, high reliability, and maintenance-free operation for extended periods.            The truck features three positions: operation, testing, and disconnection, each with positioning and display devices for safety and reliability.            Modular design of various trucks ensures interchangeability of the same specifications.            High-reliability interlocking devices fully meet the "five-proof" requirements.            Each high-voltage compartment has an independent pressure relief channel to ensure personal safety.            Complies with standards GB3906, IEC298, etc.            Standards

GB3906-2006: 3~35kV AC Metal-Enclosed Switchgear
GB11022-89: General Technical Conditions for High Voltage Switchgear
IEC60298: AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1kV and Up to 50kV
DL404-97: Technical Conditions for Ordering Indoor AC High Voltage Switchgear


Technical Parameters

Rated Voltage (kV): 40.5
Power Frequency Withstand Voltage (kV): 95 (1 min)
Impulse Withstand Voltage (kV): 185
Rated Frequency: 50Hz
Rated Current (A): 1250/1600/2000/2500/4000
Rated Thermal Stability Current (kA, 4s): 25/31.5/40
Rated Dynamic Stability Current (kA): 63/80/100
Rated Short-Circuit Breaking Current (kA): 25/31.5/40
Rated Short-Circuit Closing Current (kA): 63/80/100
Rated Voltage for Circuit Breaker and Auxiliary Circuits (V): DC 24, 36, 48, 60, 110, 220; AC 110, 220
Protection Degree: IP3X