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  • KYNS-40.5(G) Indoor Removable Metal-clad Switchgear
Medium Voltage Switchgear

KYNS-40.5(G) Indoor Removable Metal-clad Switchgear

KYNS-40.5 (G) indoor removable metal-clad switchgear (hereinafter referred to as switchgear) is a...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

KYNS-40.5 (G) indoor removable metal-clad switchgear (hereinafter referred to as switchgear) is a new type of switchgear developed by our company. The switchgear is suitable for indoor three-phase AC 50Hz electric power system with the rated voltage of 40.5kV. It can not only receive and distribute electric power for power plants, substations, industrial and mining enterprises, but also monitor, protect and control the circuit. Besides widely used for general power system, this switchgear can be applied to power circuit of frequent operation or the environment requiring greater air insulation margin.

The switchgear adopts VSV——40.5(G) series vacuum circuit breaker as its master switch, and uses special contact box and current transformer. It can be used for transmission and distribution system at an altitude of lower than 3000m and is provided with the “five-anti” function.

The switchgear conforms to GB3906 and IEC-62271-200 standards.


Product Features

1. The electrical parameter is up to 2500 A, 31.5kA.

2. It is metal-clad and air insulated floor-type switchgear.

3. It is fitted with reliable floor-type VSV-40.5(G) vacuum circuit breaker.

4. It is equipped with JN15 earthing switch with short-circuit making capacity and fast-closing mechanism.

5. The cabinet adopts imported Al-Zn steel plate characterized by double bending and riveting process, thereby it has high strength and strong visual appeal.

6. It adopts electric field voltage-sharing, shielding design and reliable insulation to meet the demands of industrial and mining enterprises.

7. It has reliable “five-anti” interlocking device to achieve closing operation.

8. It has excellent earthing continuity.

9. It is equipped with inspection windows for circuit breaker compartment and cable compartment. Through the inspection windows, opening-closing condition of breaker, handcart position, energy storage situation of operating mechanism and opening-closing condition of earthing switch can be observed.

10. It can be fitted with conventional relay protection and integrated digital relay protection device.

11. The switchgear is safe, reliable and widely used.


Technical Parameters

Item Unit Parameter
Rated Voltage
kV 40.5
Rated Insulation Level 1min Power Frequency Withstand
Voltage (rms)
kV 122 (Revised)

Lightning Impulse Withstand Voltage (Peak) kV 236 (Revised)
Rated Current of Main Busbar
A 630~2500
Rated Current of Branch Busbar
A 630~2500
Rated Short-time Withstand Current (4s, rms)
kA 25,31.5
Rated Peak Withstand Current
kA 63,80
Overall Dimensions (Width×Depth×Height)
mm 1680×3500(3125)×2900
Weight (Circuit Breaker Cabinet)
kg 1800
Dynamic Load Up kg 500

Down
500