Working...

Current Transformers

Greystone Energy Systems

Current Transformers
Current Transformers
A current transformer is an application-specific transformer designed to measure alternating current.

As an instrument transformer, a current transformer scales a large current value into a smaller current value that is easier for instruments and relays to handle. This isolates the instrument circuit from the main power circuit, which helps protect equipment and improve performance.

Current transformers are built like any other transformer, with primary and secondary windings and a core. Current that passes through the primary winding is proportionally transformed through induction into the secondary winding before it supplies the instrument circuit. This secondary current value is more useful for low-voltage applications.

5RL Series Image
The 5RL Series solid core current transformers provide a low-amperage current output proportional to line current and are for use in building automation and metering applications. These low-cost current transformers are ideal as inputs to power monitors, such as the WHT250 and current transducers, such as the CVT100.
601T Series Image
The Model 601T split-core current transformers provide a low amperage current output proportional to line current for use in energy management control and metering applications, and are ideal for use as inputs to power monitors such as the WHT250 and current transducers such as the CVT100. These transformers are designed to be assembled around an existing insulated conductor without the need for dismantling the primary bus or cables. The portion of the transformers marked "This End Removable" can be disassembled and then reassembled around the conductors that require current monitoring.
SCT Series Image
The SCT Series of current transformers provides a low-voltage (0-0.333 V) output proportional to line current and can be used in conjunction with the WHT200 to monitor electrical power systems. Often referred to as "Safe CTs," the mV output of these current transformers eliminates the need for shorting switches, and their split-core design makes them easy to install.
UCT Series Image
The UCT Series of solid core current transformers provide a low voltage (0.333V) output proportional to line current. These are often referred to as "Safe CT's", the mV output eliminates the need for shorting switches. The rugged epoxy encapsulated construction comes with 8-foot twisted leads. These low-cost current transformers are ideal as inputs to power monitors, such as the WHT200.
<< Back   Next >>