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Current Transformers & Its Factors

A current transformer can be described as an electrical instrument. It is made to allow current to flow in the secondary circuit while being perpendicular in current flow. It is widely used to calculate and monitor the operation power grid current transformers. This current ratio (primary to secondary) is how it is traditionally defined. In managing electricity infrastructure, all needs must be wise and with quality products. Then MGM Transformers can help to supply varying secondary voltages to externally connected loads. You can find quality electrical and lighting products at the MGM Transformer Company.

Current transformers are commonly used in metering/protective relaying in electric power industry. They make it easy to fulfill large currents safely in the presence of high voltages. The current transformer safely cuts off to measure the circuitry and manage it using the high voltage essentially present on the circuit. In order to control current transformers, a single primary turn is passed under a well insulated toroidal core wrapped with large turns. The current transformer is also used for measuring the flow of current as well as monitoring the operation and efficiency of the power being used. The CT is defined in terms of its current ration, which flows from primary and secondary.

There are several factors that can increase the accuracy and reliability of the current transformer. They include weight, rating factor and physical CT configuration.

The result for burden in a current transformer circuit depends on the value of impedance. The most common items that contribute to burden in a current calculation are intermediate conductors or switch blocks meters. These are also the sources and ends of current transformer circuits.

The Rating factor of current transformers, which is dependent on temperature, is a measure of the correct maximum primary current. It is determined by multiplying an CT’s total load. The CT would have a low capacity in order to keep the accuracy level in rising ambient temperature. Thus, the rating factors would range between 35 Celsius and 55 Celsius.