Current Transformers (CT) and Voltage Transformers (VT/PT) are instrument transformers used in electrical power systems to safely measure high current and voltage levels for metering, monitoring, and protection.
Current Transformer (CT) and Voltage Transformer (VT/PT) are essential components in high-voltage and medium-voltage electrical systems. They reduce high electrical values to standardized, measurable levels that can be safely handled by protective relays, energy meters, and monitoring equipment.
Current Transformer (CT):
A CT converts high line current into a lower proportional current (commonly 5A or 1A secondary output) for measurement and protection purposes. It provides accurate current sensing while electrically isolating measuring instruments from high-current circuits.
Voltage Transformer (VT/PT):
A VT or PT reduces high system voltage to a standardized low voltage level (commonly 110V or 100V secondary output) for voltage measurement, protection relays, synchronization, and control systems.
Together, CTs and VTs provide accurate electrical information for safe operation of substations, switchgear, transformers, and industrial power networks.
Key Features
Common Applications
Current Transformer (CT) Types
Voltage Transformer (VT/PT) Types
Typical Specifications
Current Transformer (CT)
Voltage Transformer (VT/PT)
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