VCB\LBS
Indian Transformers & Electricals manufacture quality cast-resin dry type transformers up to 3000 KVA capacity, 33 KV class.
Vacuum Circuit Breakers (VCB)
We manufacture Vacuum Circuit Breakers (VCB) that are fully compartmentalized, metal clad design with the superior interruption medium of vacuum. Our VCB are designed as per Indian and IEC Standards.
These are designed for reliable performance, ease of handling & simplified maintenance and provides superior control & protection of medium voltage power equipment & circuits in utility, industrial, commercial installations involving transformers, generators, motors, feeder circuits and transmission & distribution lines.
Key Features
- Conforming to IEC : 62271-100, 62271-200 & IS : 13118
- Metal clad, Fully compartmentalized
- Horizontal isolation, horizontal draw out
- Integrated earthing switch with fault making
- Readily extendable
- Available single Busbar and double Busbar execution
- Cubicles designed to meet temperature rise limits without need for forced ventilation
Safety Features
- Fully insulated Busbar with removable shrouds at joints
- Padlocks door and safety shutter
- Integral earthing switch mechanically interlocked with Circuit breaker
- Internal arc compliant
- Comprehensive safety interlocks
Operation & Maintenance
- Simple installation and user friendly
- Maintenance free vacuum interrupters
- Isolatable potential transformers
- Dry type current transformers
- Sufficient space for relays and instruments in a Low Voltage Compartment
Technical Specifications
- Nominal Voltage
- Degree of Protection
- Operation Sequence
- Opening Time
- Break Time
- Full Load Switching Life (No. of Operations)
- Closing Voltage
- Tripping Voltage
- Auxillary Contacts wired to SD5
- Fault Level
- 12KV or 36KV
- IP 55
- O - 0.3 sec. - CO - 3 min. - CO
- < 30 ms
- < 50 ms
- 10,000
- 24 V DC / 110 V DC
- 24 V DC / 110 V DC
- 8 NO + 8 NC
- 25 KA for 3 secs.
Load Break Switches (LBS)
Salient Features
- Available in both Indoor / Outdoor version and Extensible
- Metal clad hence no access to live parts
- No arc chute hence minimal maintenance
- Maintenance free mechanism
- Separate HT / LT Compartments
- Compact design with aesthetic look
We manufacture Load Break Switches (LBS) in three pole, manual / motorised operated upto 33KV range. Our LBS is simple but robust design with trouble free mechanism. These are used in application like transformer switching, ring main gears (RMG), condensers, etc.
We offer LBS that can be make / break the normal rated current and make the short circuit current. The design of Load Break Switch is user friendly and easy in operation reliable function. Load Break Switches are manufactured in accordance with IS 9920 / IEC 265.
Technical Specifications
- 24 KV
- 400/630 A
- 22-24 KV
- 26.3 kA
- 65 kA
- Air Break
- 50KV/125KV
- 50 Hz
- 3
- Single
- 1000 x 1500
- 2200
- 2425
- 36 KV
- 400/630 A
- 33-36 KV
- 26.3 kA
- 65 kA
- Air Break
- 70KV/170KV
- 50 Hz
- 3
- Single
- 1500 x 1600
- 2500
- 2725
- Load Break Switch + Earth Switch
(LBS+ES) - Load Break Switch + Earth Switch with CBCT
& Earth Leakage Relay (LBS+ES+ELR) - Load Break Switch + HT HRC Fuse
+ Earth Switch (LBS+FT+ES)