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KYN61-40.5 metal armored removable switchgear

KYN61-40.5 removable switchgear is a switchgear produced by hezong technology, which adopts advanced technology and refines the company's accumulated many years of experience in design and manufacturing. The switchgear can meet the requirements of GB3906, IEC298 and other standards. It is suitable for power systems with three-phase AC rated voltage of 40.5kV and rated frequency of 50Hz. It is used to receive and distribute electric energy and control, protect and detect the circuit. In addition to being widely used in general power systems, it can also be used in places with frequent operation. The product has the characteristics of advanced structure, reasonable, compact, superior performance, safety and reliability, and has a perfect "five prevention" chain function.
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Product Parameters

Performance characteristics

(1) wide applicability, easy to achieve a variety of programs to meet the needs of different users;

(2) Handcart interchangeability is good, labor-saving and smooth movement in the cabinet;

(3) Good main circuit insulation makes the switchgear compact and saves floor space;

(4) Various operations of the switch when the high-pressure chamber door is closed;

(5) The cable room has ample space and can connect multiple cables;

(6) reliable grounding switch operation, so that the maintenance of switchgear work more secure;

(7) The complete metal armor closure, the enclosure protection grade IP4X when closing the door, and the protection grade IP2X when the door of the handcart is opened, effectively ensuring personal safety.

(8). Each functional compartment of the switch cabinet is sealed by metal partition board and provided with independent pressure release channel;

(9) Handcart. Circuit breakers. A mechanical interlocking device is provided between the grounding switch and the rear cabinet door to prevent misoperation. The "five-prevention" function is complete, safe and reliable.

 

Technical parameters

 

Serial Number

Name

Parameters

1

Rated voltage

40.5kV

2

Rated frequency

50Hz

3

Rated current

630、1250、1600、2000、

2500

5

Rated short-circuit breaking current

20kA；25kA；31.5kA

6

Rated short-circuit closing current

50kA；63kA；80kA

7

Rated short-time withstand current/time

20kA/4S；25kA/4S；31.5kA/4S 

8

Rated peak withstand current peak

50kA ；63kA ；80kA

9

Rated short-time power frequency withstand voltage

Interphase and to the ground

95kV/1min

fracture

118kV/1min

10

Rated lightning impulse withstand voltage peak

Interphase and to the ground

185kV

fracture

215kV

11

Main circuit resistance

≤ 150μΩ

12

Circuit Breaker Loop Resistance

≤ 60μΩ

13

Rated operating sequence

0-0.3s-CO-180s-CO

14

Protection level

Housing: IP4X; Compartment: IP2X

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