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Wenzhou Unisun Electric Co., Ltd.

Ring Main Unit, Sf6 Ring Main Unit, Safering manufacturer / supplier in China, offering Isafering Sf6 Insulated Ring Main Unit, Air Insulation 17.5kv Ring Main Unit (ISM6), Air Insulation 24kv Ring Main Unit ISM6 and so on.

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Supplier Homepage Product Ring Main Unit Isafering Sf6 Insulated Ring Main Unit

Isafering Sf6 Insulated Ring Main Unit

FOB Price: US $5,000 / Set
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $5,000/ Set
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Production Capacity: 50000
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: iSafering
  • Certification: ISO9001:2000
  • Brand: Unisun
  • Origin: China
  • Type: Power
  • Operation Voltage: High Voltage
  • Trademark: Unisun
Product Description
iSafering SF6 insulated Ring Main Unit
Gas Insulated Ring Main Unit
iSafeRing is a SF6 insulated ring main unit for the secondary distribution network. iSafeRing can be supplied in 10 different configurations suitable for most switching applications in 12/24/36 kV distribution networks. As an option, iSafeRing can be delivered as extendable ring main unit.
Together, iSafeRing represent a complete solution for 12/24/36 kV secondary distribution networks.
C - Cable switch module F - Cable switch module V - Cable switch module
D - Direct cable connection module De - Direct cable connection module with earthing switch M - Metering module
Modularity and external busbar
All modules except the metering module and circuit-breaker module are only 325 mm wide.
Transformer protection
iSafering offers a choice between a switch fuse combination and circuit breaker with relay for transformer protection. The switch fuse combination offers optimal protection against short-circuits, while the circuit breaker with relay option offers better protection against low overcurrents. Circuit breaker with relay is always recommended for larger transformers.
Normal operation conditions
The rated characteristics of the switchgear are valid under the following ambient conditions:
  • minimum ambient temperature: - 25 °C
  • maximum ambient temperature: + 40 °C
For different temperature ranges, please contact your UNISUN sales representative.
Standards
iSafeRing/iSafePlus is tested according to following
IEC-standards:
IEC 62271-1/IEC 62271-100/IEC 62271-102/IEC 62271-103/IEC 62271-105/IEC 62271-200/IEC 60529:
 
SF6 insulated Ring Main Unit Outer assembly
Isafering Sf6 Insulated Ring Main Unit
 
Upper front cover
1. Manometer
2. Nameplate module
3. Short circuit indicator
4. Capacitive voltage indication
5. Load break / earthing switch position indicator
6. Push buttons close/open operation
7. Charged spring indicator
8. Self-powered protection relay
9. Vacuum circuit-breaker position
10. Operation shaft
11. Padlock device
Lower front cover
12. Nameplate switchgear
13. Fuse blown indicator
14. Disconnector / earthing switch position indicator
15. Capacitive voltage indication
Cable compartment cover
16. Cable compartment cover standard
17. Cable compartment cover with inspection window
18. Support bar (removable)
Side cover
19. Lifting lug
20. Operating handle (standard on right hand side)
 
Inner assembly

Isafering Sf6 Insulated Ring Main Unit
1. Mechanism compartment
2. SF6 gas tank
3. Cable compartment
4. Pressure relief area
 
SF6 insulated Ring Main Unit Module
C - Cable switch module F - Cable switch module V - Cable switch module
D - Direct cable connection module De - Direct cable connection module with earthing switch M - Metering module
 
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