Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels. ... The primary winding of the transformer is connected to the high voltage or high current circuit, and the meter or relay is connected to the secondary circuit.
What is the function of instrument transformers?
Instrument transformers are designed to send secondary voltage and current to devices known as “instruments.” Instruments include meters for measurement or protection relays for equipment protection. Meters include voltmeters, ammeters, watt meters, and watt-hour meters.
What are the applications of instrument transformers?
Applications. Instrument transformers are used mainly in measurement and protective equipment. They are also used to provide energy to protective relays. Accuracy, the degree to which instrument transformers produce a current or voltage that is proportional to monitored value, varies among devices.
How many types of instrument transformers are there?
Instrument transformers are mainly classified into two types: Current transformers (CT) Voltage transformers or potential transformers (VT or PT)
Is an instrument a transformer?
Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels. ... The primary winding of the transformer is connected to the high voltage or high current circuit, and the meter or relay is connected to the secondary circuit.
How can we classify instrument transformers?
The transformer can be divided into VOLTAGE TRANSFORMER and CURRENT TRANSFORMER.Nov 12, 2019
What are two types of instrument transformers?
- Current Transformer (C.T.)
- Potential Transformer (P.T.)
What are two applications of instrument transformers?
Applications. Instrument transformers are used mainly in measurement and protective equipment. They are also used to provide energy to protective relays. Accuracy, the degree to which instrument transformers produce a current or voltage that is proportional to monitored value, varies among devices.