SRM16-12/24 6kv/10kv/12kV/24KV SF6 Gas fully enclosed and metal ring net Switchgear (Air filled cabinet)

Short Description:

  • SRM16-12/24 SF6 gas insulated switchgear (GIS) with a rated voltage from 10-40.5kv, is a type of SF6 gas insulated switchgear.
  • There are several types of unit for this type GIS, V (vacuum circuit breaker) unit, C(load break switch) unit, F(fuse combination unit), PT(voltage transformer) unit and so on.
  • All the units can be combined by customer requirement to realize preset functions.
  • The switchgear (GIS) with the adoption of the modular design, can be fixed of extended, it is suitable for end-user or network, meanwhile meets the requirement of all kinds of power distribution substations, cabinet-type transformer substations,cable branch cabinets.
  • It characters on its compact structure, safety and reliability. longevity and maintenance free.
  • -the swicthgears meet the demand of GB/T11022,IEC60694 etc.

Product Detail

Product Tags

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Service conditions of GGD Indoor Low Voltage Switchgear

Normal service conditions of switchgear as follows:
Ambient temperature:
Maximum +40°C
Maximum 24 hour average +35°C
Minimum (according to minus 15 indoor classes) -50°C
Ambient humidity:
Daily average relative humidity less than 95%
Monthly average relative humidity less than 90%
Earthquake intensity less than 8 degree
Height above sea level less than 2000m

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Special service conditions

Each special service condition should be proposed in advance and confirmed by the manufacturer and user.

The dielectric strength of the air will be reduced in when altitude is over 2000m at site.

If the ambient temperature is over the maximum degree, the capacity of the using current must be lower than the designed currents for both main busbar and branching bus bar. The installation of area is propitious to reduce heat.               

 Technical specification of KYN61A-40.5 switchgear

Item Unit Data
Rated voltage kV 40.5/36/35/33
Insulation level Rated power-frequency withstand voltage(1min) kV 95/118(phase to earth/across open contacts)
Rated lightning impulse withstand voltage kV 185/215(phase to earth/across open contacts)
Rated frequency Hz 50/60
Rated main bus bar current A 630,1250,1600,2000,2500
Rated branching bus bar current A 630,1250,1600,2000
4s Short-time withstand current(rms.) kA 16,20,25,31.5
Peak withstand current(peak.) kA 40,50,63,80
Protection degree Enclosure:IP4X,Between compartment:IP2X

Technical specification of SRM16-12/24 switchgear

Item

Unit

C module

F module

V module

CB module

load break switch

switch fuse

vacuum switch

isolate/earhing switch

vacuum circuit breader

isolate/earhing switch

Rated voltage

kV

12/24

12/24

12/24

12/24

12/24

12/24

Power frequency withstand voltage

kV

42/50

42/50

42/50

42/50

42/50

42/50

Impulse withstand voltage

kV

95/125

95/125

95/125

95/125

95/125

95/125

Rated current

A

630/630

note 1

630/630

1250/630

Rated Transfer Current

A

1750

Closed Loop

A

630

Off Load Cable Charging

A

630

5% Rated Active Load Drop-out Current

A

135/135

Earth Fault Breaking Current

A

31.5/-

When Earth Fault, Drop-out

Current Of Cable Charging

A

200/150 115/87

Short Circuit Drop-out Current

kA

note 2

20/16

25/20

Making Capacity

kA

63/50

note 2

50/40

50/40

63/50

63/50

Short Time Current 2s

kA

25/-

Short Time Current 3s

kA

-/20

20/16

20/16

31.5/25

31.5/25

Mechanical Life

Times

5000

3000

5000

2000

10000

5000

Note:1.varies with rated current value of fuse

Structural drawing of SRM16

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1. pressure gauge 11. Fuse blow indicator
2. Module nameplate 12. Isolator / ground switch position indicator
3. Short circuit indicator 13. Capacitor voltage indication
4. Capacitor voltage indication Cable compartment cover
5. Load disconnect / ground switch position indicator 14. Cable compartment cover standard
6. Button close / open operation 15. Cable compartment cover with inspection window
7. Spring indicator 16. Support rod (removable)
8. Self-powered protective relay 17. Lifting ear
9. Vacuum circuit breaker position 18. Operating handle
10.Switchgear nameplate

Available modules

C

Load break switch module

(Width=325mm)

DE

Cable connect module without earthing switch

(Width=325mm)

D

Cable connect module with earthing switch

(Width=325mm)

F

Load break switch and fuse combination Module

(Width=325mm)

V

Vacuum switch module

(Width=325mm)

SL

Bus bar section module (load break switch)

(Width=325mm)

SV

Bus bar section breaker module (vacuum switch)

(Width=650mm)

BE

Bus bar earth module

(Width=325mm)

M

Metering module

(Width=696/900mm)

CB

Vacuum circuit breaker module

(Width=500mm)

PT

Power module

(Width=400mm)

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 Product Features

1.SF6 gas performance indicators:absolute pressure at 20℃ is 1.4 PAR.

2.Annual gas leakage rate is 2‰.

3.chamber stainless steel thickness 3.0mm

4. Cabinet material: aluminum-zinc-plate 2mm

5. Including side expansion and top expansion

6. 630A/20kV specification internal arcing duration 1S

7. Shell protection grade: Shell IP41, IK07, air box shell (304/3mm stainless steel) protection grade IP67

8. At the rated voltage Ur, the X-ray emission level at 1m away from the vacuum interrupter does not exceed 5μSv/h; at the power frequency withstand voltage Ud, the X-ray emission level at 1m away from the vacuum interrupter does not exceed 150μSv/h

9. The solubility of the salt solution is (5±1)% (mass ratio), the PH value is 6.5-7.2 at (35±2)ºC, and the spray duration is 168h

Mechanical life test: circuit breaker 10000 times (M2 level), three-station isolation/earth switch 3000 times (M1 level)


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