Switchgear Transformers
These current transformers are moulded in epoxy and suitable for indoor use or in a climate controlled environment. They can be tailored for metering or relaying applications.
Insulation Class: 0.7 kV to 50 kV
Current Rating: 50 A to 15,000 A
Protection Accuracy: C10 to C1600
Metering Accuracy: 0.6B0.1 to 0.15B1.8
Operational Temperature: -5C to +40C
Frequency: 50 Hz or 60 Hz
Substation Transformers
These current transformers are specifically built to withstand harsh environments and atmospheric conditions: extreme cold, extreme heat, harmful UV radiation and atmospheric pollutants. This series of medium voltage current transformers are cast in a heavy duty hydrophobic cycloaliphatic epoxy coat and can be used for metering or relaying applications.
Insulation Class: 5 kV to 50 kV
Current Rating: 100 A to 6,000 A
Protection Accuracy: C10 to C800
Metering Accuracy: 0.6B0.1 to 0.15B1.8
Operational Temperature: -50C to +50C
Frequency: 50 Hz or 60 Hz
Zero-Sequence Transformers
This series of low voltage current transformers are cast in an epoxy coat for use in indoor environments or in climate controlled areas. These Core Balance Current Transformers are built primarily for ground fault protection and current leakage.
Insulation Class: 0.7 kV to 15 kV
Current Rating: 50 A to 200 A
Protection Accuracy: C10 to C100
Operational Temperature: -5C to +40C
Frequency: 50 Hz or 60 Hz
Bushing Transformers
These low voltage current transformers are cast in an epoxy coat for indoor and environmentally controlled conditions. They are designed and built to go over insulated bus bars and bushings for metering or relaying applications.
Insulation Class: 700 V
Current Rating: 50 A to 4,000 A
Protection Accuracy: C10 to C800
Metering Accuracy: 0.6B0.1 to 0.15B1.8
Operational Temperature: -5C to +40C
Frequency: 50 Hz or 60 Hz
Auxiliary Transformers
This series of low voltage current transformers are coated in a polyester varnish for indoor and controlled climate use. They are primarily used as current isolating transformers or current adjustment transformers.
Insulation Class: 700 V
Current Rating: 500 mA to 50 A
Protection Accuracy: C10 to C200
Metering Accuracy: Upon request
Operational Temperature: -5C to +40C
Frequency: 50 Hz or 60 Hz
Split-Phase Transformers
These specialty medium voltage current transformers are cast in epoxy for indoor or controlled climate use. These transformers are designed to detect faults between wingdings in a generator. This type of protection optimizes the amount of current transformers needed compared to a traditional differential protection.
Insulation Class: 0.7 kV to 25 kV
Current Rating: 400 A to 8000 A
Detection Ratios: 50 to 250 A
Protection Accuracy: C10 to C100
Operational Temperature: -5C to +40C
Frequency: 50 Hz or 60 Hz