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Home » Products » MV Switchgear » Ring Main Unit with VCB Tee Off

Ring Main Unit with VCB Tee Off

Ring Main Unit with VCB Tee Off
Ring Main Unit with VCB Tee Off
Product Code : 11-22KV SF6
Product Description
11-22KV SF6 Ring Main Unit with VCB Tee Off.

Salient Features
  • SF6 Ring Switch with tee off VCB gives longer services life
  • Robust & Single Gas Sealed tank Construction for 3 way Ring Main Unit
  • Fully extensible
  • Operating mechanism with mechanical interloacks
  • Facilities for padlocks on all switching functions
  • Phase indications and Fault passage indications
  • Internal arc protection
  • SF6 Pressure monitoring
  • Confirms to Indian Electricity Regulations & as per IEC 62271-100,101,102 &103
  • 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 Relays & CT's
  • Cable Jointing Kits
  • Motorized Mechanism

Technical Specifications

Details

Unit

SF6 Ring main unit

Type

-

11 kV

22 kV

Rated Voltage

kV

12

24

Rated current tee off /switch

Amps

400/630

400/630

Rated  Frequency  

Hz

50

50

Rated Short Circuit Breaking Current (Main circuit) 

kA

20

20

Rated Short Circuit Making Current (Main circuit) 

kA

50

50

Rated Short Circuit making current
(Earthing switch)

kA

50

50

Rated duration of short circuit
(Main circuit)

Seconds

3

3

Rated duration of short circuit
(Earthing switch)

Seconds

2

3

Rated Power frequency withstand voltage

kV

28

50

Impluse withstand voltage

kV peak

75

125

Mechanical endurance of load breaking switch

Cycles

10,000

10,000

Tanks gas pressure

MPa

0.05

0.05

Relevant standard

-

IEC 62271-100,101,102 & 103

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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