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Control Transformers |
Products • Control Transformers |
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RING TYPE CTs : A CT which has an opening in the center to accommodate a primary conductor (busbar or cable) through it.
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
BAR -PRIMARY CTs: A CT in which the primary winding consists of bar of suitable size and, material forming an integral part of the CT.
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
WOUND TYPE CTs: A CT having a primary winding of more than one full turn wound on the core.
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
Range: 1-5-7.5-10-15-20-25-30-50-60-75-100/5-1 A
INTERPOSING CTs.: These CTs are used n conduction with main CTs to alter the ratio of main CT or to provide isolation to meters or relays from main CTs secondary circuit. Primary current of these CTs are generally lower than 1 0 amp. Due to which they are always wound primary types.
SUMMATION CTs: When current flowing, in more than one feeder is required to be metered summation current transformer are used. These CTs are provided with more than one primary winding and one common secondary.
BUSHING TYPE OR BUSDUCT CTs: These CTs are Ring type construction & can be mounted on Busduct or Bushing turrert of power transformer.
CORE BALANCE CTs: These are ring type CTs & suitable for the measurement of the sum of three phase currents in a 3-ph cable. Under normal operating conditions this sum is zero. In the event of an earth-fault the sum of the current is equal to the zero sequence current.
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