• A-75, Sector 5, Noida - 201301 ( U.P. ) India

INDOTECH RESIN CAST CURRENT TRANSFORMER

Indotech Resin Cast Current Transformer (CT) – Cast-resin power transformers encase the windings in epoxy resin. These transformers simplify installation since they are dry, without cooling oil, and so require no fire-proof vault for indoor installations. The epoxy protects the windings from dust and corrosive atmospheres. However, because the molds for casting the coils are only available in fixed sizes, the design of the transformers is less flexible, which may make them more costly if customized features (voltage, turns ratio, taps) are required. Resin cast current transformers are available for metering and protection application. These current Transformers are mainly fabricated according to client’s specification. CT coils are encapsulated in cast resin (Polyester / Epoxy). Secondary terminals are provided with either screws or studs. The main insulation between Primary and Secondary and Earth is obtained by this epoxy resin. These transformers are of compact design with high mechanical and electrical properties. These are non-hygroscopic and hence give very good insulation properties even in given humid conditions.

TYPE OF TRANSFORMER: RESIN CAST

We manufacture highly efficient and accurate resin cast potential transformers. These resin cast potential transformers are used In AC circuits, for the purpose of measuring large voltages. Their main function is to reduce the supply voltage to a small value so that it can be easily measured with standard low range AC instruments of moderate size and capacity. There are many advantages of using resin cast potential transformers for range extension of AC meters. We also offer resin cast potential transformers of dual purpose Metering & Protection that are also commonly used.

he standards define a voltage transformer as one in which “the secondary voltage is substantially proportional to the primary voltage and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections.”

This, in essence, means that the voltage transformer has to be as close as possible to the “ideal” transformer. In an “ideal” transformer, the secondary voltage vector is exactly opposite and equal to the primary voltage vector, when multiplied by the turns ratio

SECONDARY : 1A SECONDARY : 5A

CT
RATIO
PRODUCT
CODE   
CT
RATIO   
PRODUCT
CODE
ID RATED
BURDEN VA   
ACCURACY
CLASS   
30/1A GR0030503B 30/5A GR0030503C 30 3 5
40/1A GR0040503B 40/5A GR0040503C 30 3 5
50/1A GR0050503B 50/5A GR0050503C 30 3 5
60/1A GR0060503B 60/5A GR0060503C 30 3 5
75/1A GR0075503B 75/5A GR0075503C 30 3 5
100/1A GR0100503B 100/5A GR0100503C 30 3 5
100/1A GR0100205B 100/5A GR0100205C 35 5 2
100/1A GR0100105B 100/5A GR0100105C 35 5 1
150/1A GR0150503B 150/5A GR0150503C 30 3 5
150/1A GR0150205B 150/5A GR0150205C 35 5 2
150/1A GR0150105B 150/5A GR0150105C 50 5 1
200/1A GR0200505B 200/5A GR0200505C 30 5 5
200/1A GR0200205B 200/5A GR0200205C 35 5 2
200/1A GR0200105B 200/5A GR0200105C 50 10 1
250/1A GR0250110B 250/5A GR0250110C 50 5 1
300/1A GR0300110B 300/5A GR0300110C 50 10 1
400/1A GR0400115B 400/5A GR0400115C 60 15 1
500/1A GR0500115B 500/5A GR0500115C 60 15 1
600/1A GR0600115B 600/5A GR0600115C 60 15 1
800/1A GR0800115B 800/5A GR0800115C 105 15 1
1000/1A GR1000115B 1000/5A GR1000115C 105 15 1
1200/1A GR1200115B 1200/5A GR1200115C 105 15 1
1600/1A GR1600115B 1600/5A GR1600115C 115 15 1
2000/1A GR2000115B 2000/5A GR2000115C 115 15 1
2500/1A GR2500115B 2500/5A GR2500115C 130 15 1
3200/1A GR3200115B 3200/5A GR3200115C 130 15 1