UK Ring Splict Core CT

What is the effect of saturation on the performance of C.T?

On reaching saturation, the transformer ratio is affected. It results in an increase of excitation current due to the reduction in magnetizing inductance and reducing a phase angle error in the C.T, which deviates primary and secondary current from their desired phase opposition i.e. 180⁰. The increase in excitation current of CT causes the reduction in secondary output which reduces the speed of overcurrent relays. The saturation of CT also disturbs the balance in differential relays thus affecting the stability of protection. Therefore the effect of saturation makes the operation of CT unsatisfactory.

They may be installed without opening any cable or bus-bar circuit.An internal precision resistor across the secondary winding of the CT provides a low safe voltage output.It can save time and the installations costs.

Features
Doubie-screw fastening,safe,easy to install,portable.
Wide inner window,allowing clamping of big cables or bus-bars.
Wide range of sizes to accommodate all the existing installations.

Application
1.Current measurement,monitoring and protection for electrical wiring and equipment.
2.Current and power measurement for electric motors,lighting,air compressor,heating and ventilation system,air-condition equipment and automation-control system.
3.Current,power and energy monitoring device.
Relay protection device
4.Circuit connection diagram