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Vacuum Ring Main Unit

Vacuum Ring Main Unit
Vacuum Ring Main Unit
Product Code : 11kV
Product Description

Enlisted in the list of top most companies, we manufacture and supply supreme quality range of Vacuum Ring Main Unit. All these main units find wide application in wind mill power plants, secondary ring main distribution system and remote substations. All these units are fully extensible and have longer electrical and mechanical life. Manufactured from certified quality of components and materials, this Vacuum Ring Main Unit is offered in 11KV. Our clients can buy these main units from us at cost effective prices.   



Salient Features
  • Embedded vacuum interruptor ensures safety of operator
  • 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

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