KYN61-40.5 metal-clad withdrawable switchgear

The KYN61-40.5 high-voltage switchgear is suitable for indoor three-phase 50/60Hz power systems with a rated voltage of 35kV. It is used to receive and distribute three-phase AC power and to automatically close and control the operating circuit, cut off fault protection (including overload, short circuit, overvoltage, etc.), monitoring and event recording.

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Smart power distribution series

Power distribution box series

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Product Description


  KYN61-40.5 high-voltage switchgear is suitable for indoor three-phase 50/60Hz power systems with a rated voltage of 35kV. It is used to receive and distribute three-phase AC power, and to automatically switch, disconnect fault (including overload, short circuit, overvoltage, etc.), protection, monitoring and event recording; widely used in power plants, substations, industrial and mining enterprises, railway transportation, and high-rise buildings.

  The design and manufacturing of the switchgear fully comply with GB/T 3906 "3.6kV~40.5kV AC metal-enclosed switchgear and control equipment" and DL/T 404 3.6kV~40.5kV "AC metal-enclosed switchgear and control equipment", GB/T 11022 "Common technical requirements for high-voltage switchgear and control equipment standards" and DL/T 593 "Common technical requirements for high-voltage switchgear and control equipment standards".

Technical Advantages


  1. KYN61-40.5 consists of two main parts: a fixed cabinet and a withdrawable component (referred to as a truck). The cabinet shell and various functional unit partitions are assembled using riveted nuts.

  2. The cabinet size can be designed according to the customer's actual on-site space and needs, with different cabinet width sizes such as 1200mm, 1400mm, and 1650mm for high altitudes.

  3. The cabinet has high strength. The outer panel surface is sprayed with electrostatic spraying; the main frame of the cabinet adopts imported aluminum-zinc plated double-folded edge processing technology; ensuring that the cabinet will not corrode due to environmental humidity.

  4. Each functional compartment has an independent pressure release channel and fully meets the national standard and the State Grid's "five-prevention" requirements for electricity.

  5. All busbars inside the cabinet are rounded at the ends to prevent corona discharge.

Technical Parameters


Parameter Name

Unit

Technical Data

Rated Voltage

kV

35

Maximum Operating Voltage

kV

40.5

Rated Insulation Level

1min Power Frequency Withstand Voltage

kV

Phase-to-phase and phase-to-ground 95/break 118

Lightning Impulse Withstand Voltage

kV

Phase-to-phase and phase-to-ground 185/break 215

Rated Frequency

Hz

50

Rated Current

kA

1250, 2500

4s Short-Time Withstand Current

kA

31.5

Rated Peak Withstand Current

kA

80

Protection Level

 

The enclosure can reach IP4X, and the circuit breaker compartment door open reaches IP2X

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