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DIFFERENCE BETWEEN TRANSFORMER AND CURRENT TRANSFORMER?
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Answer Posted / sunil parmar
TRANSFORMER IS AN MACHINE USED FOR STEPPING UP AND DOWN OF
ELECTRICITY AND COMMONLY USED FOR EFFECTIVE TRANSMISSION
AND DISTRIBUTION PURPOSES.
AND CT GENERALLY KNOWN AS INSTRUMENT TRANSFORMER USED FOR
PROTECTION ,MEASUREMENT,AND FOR THE CONTROL PURPOSE.
IT ALSO PROVIDES ISOLATION BETWEEN THE HIGH VOLTAGE
TERMINAL AND METER TERMINAL.
DURING FAULT OR ABNORMAL CONDITION CT SENSES THE FAULT
CURRENT AND GIVES SIGNALS TO RELAY, AND RELAY TRIGGERS THE
CIRCUIT BREAKER.CT'S SECONDARY SIDE IS ALWAYS SHORT
CIRCUITED AND SEC. CURRENT RATING IS ALWAYS LESS ie.1,2,AND
5A
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