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SF6 Air insulated switchgear GSM Modular Units up to 36kV

Secondary distribution products--SF6 Air insulated switchgear GSM Modular Units up to 36kV



Using SF6 gas as insulation and arc extinguishing medium, rotating arc and

arc extinguishing of a constant magnetic field make the arc esxtinguishing capability

free from the influence by the arc current,pefect breaking performance,weak overvoltage,

long electrica life span, arc chamber maintenance-free.
High quality GSC series (SC6-SIC type, SC6-SQC type) Indoor SF6 LBS, composite apparatus.

Three-position, multi-functions; easy operation, high reliability operation mechanism and lock,

with a small gas pressure gauge. Passed SF6 gas zero pressure rated breaking test,

super functional , high reliability.Earthing switch has the short-circuit making capability

which corresponds to national standard.

 




Rated voltage

Ur

kV

7.2

12

17.5

24

36

Insulation level

Insulation

Ud

50/60Hz,1 min(kV rms)

20

28

38

50

70

Isolation

Ud

50/60Hz,1min(kV rms)

23

32

45

60

80

Insulation

Up

1.2/50 μs(kV peak)

60

75

95

125

170

Isolation

Up

1.2/50μs (kVpeak)

70

85

110

145

195

Breaking capacity

Transformer off load

A

16

Cables off load

A

31.5

50

Rated current

Ir

A

630

Short-time withstand current

lk/tk

kA/1 s

25

630

20

630

16

630

12.5

630

Making capacity (50 Hz)

Ima

kA

62.5

630

NA

50

630

40

630

31.25

630

Maximum breaking capacity (Isc)

Units IM,IMC,IMB

A

630

QM.QMC, QMB

kA

25

20

20

PM

kA

25

20

Vacuum circuit breaker range

DMV-A, DMV-D, DMV-S

kA

25

630

 N/A

DMVL-A

kA

20

630

NA

DMVL-D

kA

25

630

NA


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