DISCONNECT SWITCHES (OFF LOAD ISOLATORS)

 

Powergear Limited have been in the forefront of giving International Quality Disconnecting Switches from the last few years.  These Switches have robust mechanical construction and liberal electrical ratings ensure reliability under heavy loading or fault conditions.  The design of these Switches confirms to International and Indian Standards.

 

STANDARDS:

The switch conforms to ANSI C37.32, IEC-60129, IS 9921

FEATURES:

  • High Operating Reliability

  • Simple Maintenance and Inspection

  • Simple and Reliable Driving Mechanism

  • Operable by both Motor and Manual

  • Operation by Bevel Geared Motor, and there by smooth operation.

  • Tested in accordance with the ANSI, IEC and IS

CONSTRUCTION:

Switches are made out of rigid frame work, with provision for manual operation through operating drive handle.  These are equipped with Uni-directional Bevel geared motor for motor operation associated with control circuit and also has arrangement for manual operation.
Isolated Phase Busducts
Segregated & Non-Segregated Phase Busducts
Generator Terminal Enclosures
Generator Auxiliary Compartment Panel for GTG's
Vacuum Circuit Breakers (Indoor/Outdoor)
Outdoor Oil Immersed Instrument Transformer
Dry Type Instrument Transformers
PTSA & NG Cubicles
Indoor Disconnectors
Dynamic Braking Cubicle

TECHNICAL DATA

    1 2 3 4 5
Rated Voltage
(KV)
 12 15 22 25.8 24
Rated Current
(A)
 1200/1600/2000 400 2000 2000 5000/10000/12500
No. of Poles
3/1
 3 1 3 3 1
Rated Frequency
(Hz)
 50 60 50 60 50
Rated Short time Current
(KA)
 40/55/63.5 12.5 41 38 129/230
Rated Peak Current
(KA)
 105/140/159 32.5 105 99 330/575
Duration of Short Time Current
(Sec)
 3/1/1 3 3 3 1
Power Frequency Voltage
(KV)
 28/35 36 55 60 55
Impulse Voltage
(KV)
 75 95 125 125 125
Auxiliary Contacts

12 NO + 12 NC (Rating 220V DC, 2A)

Motor Rating

1 Phase, 115/230V, 60/50 Hz, 0.37/0.75 kW (0.50/1.0 HP)