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Home » Products » MV Switchgear » Solid Isolated Vacuum Ring Main Unit

Solid Isolated Vacuum Ring Main Unit

Solid Isolated Vacuum Ring Main Unit
Solid Isolated Vacuum Ring Main Unit
Product Code : 17
Product Description
11KV Vacuum Ring Main Unit

Salient Features
  • Embedded vacuum interruptor ensures safety of operator
  • Long electrical and mechanical life
  • Fully extensible
  • Operating mechanism with mechanical interloacks with earth switch
  • Facilities for padlocks on all switching functions
  • Phase indications and Fault passage indications
  • Internal arc protection
  • Confirms to Indian Electricity Regulations & as per IEC 62271-100
  • Compatible for remote & SCADA operations
Application
  • Secondary Ring Main Distribution system
  • Remote substations
  • Industrial Distribution
  • Wind mill power plants
  • Commercial & Infrastructural Establishment
Accessories/Optional
  • Numerical relay for protection with CT
  • Cable Jointing Kits
  • Motorized Mechanism

Technical Specifications

Details

Unit

Parameters

Type

-

11 kV

Rated Voltage

kV

12

Rated current tee off /switch

Amps

400/630

Rated Frequency

Hz

50

Rated Short Circuit Breaking Current (Main circuit)

kA

20

Rated Short Circuit Making Current (Main circuit)

kA

50

Rated Short Circuit making current
(Earthing switch)

kA

50

Rated duration of short circuit
(Main circuit)

Seconds

3

Rated duration of short circuit
(Earthing switch)

Seconds

2

Rated Power frequency withstand voltage

kV

28

Impluse withstand voltage

kV peak

75

Mechanical endurance of load breaking switch

Cycles

10,000

Relevant standard

-

IEC 62271-100

Dimensions

mm

As per G.A Drawing



STELMEC LTD.
Ahmedabad-Sanand Road, Ullaria, Taluka Sanand, Ahmedabad - 382110, Gujarat, India
Mr. Vijay Chauhan (Manager)
Mr. Rajesh Bhardwaj (Regional Marketing Manager)
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