How to Parallel Current Transformers?
Current Transformer [CT] is used to obtain replica of primary current for use in metering or relaying applications. Though vast…
POWER QUALITY CHECK USING MULTIMETER
This article discusses methods to measure basic power (Voltage) quality parameters using a multimeter. Using any advanced digital multimeter (similar…
Adjusting Current Transformer Ratio
Current Transformer [CT] ratio is specified for one turn or one pass of primary conductor through the window of CT.…
COLD LOAD PICKUP IN POWER DISTRIBUTION NETWORKS
When power distribution circuit is re-energized following an extended power outage, new power demand can be higher than pre-outage power…
Common Impedance Coupling in Power Systems
Common impedance coupling can cause a variety of issues in communication and control applications. Common impedance coupling occurs when two…
MULTIPOINT GROUNDING IN POWER SYSTEMS
Power system grounds are usually single-point grounded and is most effective at low frequency from DC to about 20 kHz.…
SINGLE POINT GROUNDING IN POWER SYSTEMS
Power system grounds are usually single-point grounded and is most effective at low frequency from DC to about 20 kHz.…
Ground wire vs Ground Strap for high frequency grounding
Grounding or earthing of equipment containing high frequency noise sources require that connection be done with a low impedance path.…
HIGH IMPEDANCE IN EARTH GROUND WIRE DUE TO MAGNETIC FIELD
High impedance in earth ground wires can be caused due to commonly known reasons such as loose connection, having a…
CHARGING CURRENT IN HIGH VOLTAGE CABLE
Power cables used for transmission and distribution of power have distributed capacitance. Medium and high voltage power cable consists of…