What are the two most common instrument transformers?
Apr 01,2024
The two most common types of instrument transformers are:
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Current Transformers (CTs):
These transformers are used to measure alternating current (AC) in power systems. They step down the current flowing in a high-voltage circuit to a lower level suitable for measurement instruments and protective relays. Current Transformers (CTs) are typically used for metering, protection, and control purposes.
Voltage Transformers (VTs) or Potential Transformers (PTs):
These transformers are used to step down high voltage to a lower, more manageable level for measurement and protection purposes. VTs are commonly used to provide isolation and scaling for voltage measurements in power systems, allowing instruments and relays to safely measure and operate with reduced voltage levels.
