Ground Plate Electrode Resistance Calculation
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, ground plate…
Estimating Substation Ground Grid Resistance
Constructing substation ground grid is the principal method of achieving low substation to remote ground or earth resistance. Ground grid…
Earth Resistance Calculation for Buried Strip Electrode
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, metallic plate…
Earth Resistance Calculation for Buried Wire Electrode
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, metallic plate…
Telephone Interference Factor
Harmonic voltage and current present in power system can negatively affect the quality of reception of telephone and other communication…
Series Connection of Current Transformer
Series connection of current transformer [CT] is used when accuracy improvement is desired without increasing CT ratio. Series connection of…
What is a Capacitor Trip Device?
Capacitor trip device [CTD] or capacitor trip unit [CTU] is a device that provide DC source of energy for circuit…
Capacitor bank discharge methods
Capacitor bank can hold dangerous voltage after disconnecting from power system unless discharging devices are connected to the capacitor terminals.…
What is the electrical resistance of human body?
Electrical resistance of human body has been estimated to be 1,000 Ω according to IEEE Std. 80 standard. Resistance is…
What is Separately and Non-Separately Derived System?
A separately derived system is an electrical system in which the service phase (hot) and neutral conductors has no electrical…