SF6 Circuit Breaker Series

High Voltage Element

FEP-40.5KV Indoor medium voltage SF6 circuit breaker

Classification Series :SF6 Circuit Breaker Series
Product Name :FEP-40.5KV Indoor medium voltage SF6 circuit breaker
Product Overview
FEP-SF6 circuit breaker is a new generation SF6 circuit breaker developed by using mature and reliable SF6 breaking technology, which meets relevant domestic and international standards such as GB, DL and IEC. The overall dimensions of FEP...

▸ Product Introduction

Product description

FEP-SF6 circuit breaker is a new generation SF6 circuit breaker developed by using mature and reliable SF6 breaking technology, which meets relevant domestic and international standards such as GB, DL and IEC. The overall dimensions of FEP circuit breakers are exactly the same as those of VEP circuit breakers of the same model, and there is no need to make any changes between them. They can be interchanged with switchgear cabinets and can be matched with mainstream switchgear cabinets in the market conveniently and reliably.


Technical characteristics

1.It has high safety. Because the internal arc-extinguishing chamber of FEP circuit breaker runs at low pressure, although the internal pressure will increase due to gas compression and heat increase during the operation of the circuit breaker, it is still in a low-pressure gas state.

2.The structure is standard, and it can be conveniently, flexibly and easily installed in the switch cabinets of mainstream manufacturers in the market.

3.The overall dimensions are completely consistent with those of the VEP circuit breaker, and they can be interchanged with the switchgear.

4.It can be conveniently and safely installed in the switch cabinets of mainstream manufacturers in the market.


Technical paramete

Serial

Number item

Unit

Data

1

Rated voltage

kV

40.5

12

2

Rated frequency

Hz

50

3

Rated current

A

1250/1600/2000/2500

1250

4

Insulation level

Rated short-time power frequency withstand voltage (1min)

Ground and phase

kV

95

42

Ground and phase

118

48

Rated lightning impulse withstand voltage

Ground and phase

185

75

Ground and phase

215

85

Short-time power frequency withstand voltage of auxiliary and control circuits

2

2

5

Partial discharge

pC

≤5

6

Rated short circuit breaking current

kA

31.5

7

Rated short-circuit closing current (peak value)

80

8

Rated out-of-step breaking current

7.9

9

Rated out-of-phase ground breaking current

27.4

10

Rated peak withstand current

80

11

Rated short-term withstand current

31.5

12

Rated short circuit duration

s

4

13

Rated back-to-back capacitor bank breaking current

A

1250

14

Rated cable charging breaking current

50

25


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