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location:Return TZR-12~24
TZR-12~24
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TZR-12~24 SF6 Gas insulated switchgear




1.General  Description:

 

TZR-12~24 gas insulated switchgear  is suitable for ring network terminal power distribution with power levels of 12kV 3-phase AC 50Hz and used for power acceptance,distribution , overload and short-circuit protection, especially applicable for oil-free and maintenance -free places with frequent operation. The switchgear cabinet complies with GB16926, GB3906 and IEC420-1990.

 

2.Working condition:

 

1.Ambient temperature;-10----+40

2.Relative humidity:daily average ≤95%,monthly average ≤90%

3.Seismic intensity ≤8

4.Altitude:≤1000m;(Not including special requirement

5.Service environmentshould be avoided fire, explosion risk, serious       pollution, chemical corrosion and violent vibration

Uses should discuss with supplier if working condition exceed above range.

3.Technical data

 

Item

Unit

Data

Rated   voltage

kV

12~24

Rated frequency

Hz

50

Rated current

A

630,1250

Rated short   time withstand current(4S)

kA

20,25,31.5

Rated withstand   current(peak)

kA

50,63,80

Rated short   circuit breaking current

kA

20,25,31.5

Rated short   circuit making current(peak)

kA

50,63,31.5

Rated   insulation levels

Rated power   frequency withstand voltage/1min

kV

42

Rated lighting   impulse withstand voltage

kV

75

Level of   protection

Shell IP67

 

 

 

4.Overall drawing




1. Ring

2. SF6 gas manometer

3. Outer cabinet

4. Upper panel

5. Potential indicator

6. Bottom panel

7. Bottom door plate

8.Gas tank

9.Decompression valve

10. Earth-terminal board

11. Cable clip

12.Cable vault

13. Fuse

14. Operating handle

15. Operating mechanism





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