Telephone Interference Factor
Harmonic voltage and current present in power system can negatively affect the quality of reception of telephone and other communication…
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 [CT] is used when accuracy improvement is desired without increasing CT ratio. Series connection of…
Capacitor trip device [CTD] or capacitor trip unit [CTU] is a device that provide DC source of energy for circuit…
Capacitor bank can hold dangerous voltage after disconnecting from power system unless discharging devices are connected to the capacitor terminals.…
Electrical resistance of human body has been estimated to be 1,000 Ω according to IEEE Std. 80 standard. Resistance is…
A separately derived system is an electrical system in which the service phase (hot) and neutral conductors has no electrical…
Main Bonding Jumper [MBJ] is used to connect switchboard neutral bus and switchboard ground bus. MBJ is a very critical…
Temperature is the most common cause behind power system device damage. Expensive devices such as motors and transformers can have…
Open circuiting secondary side of current transformer [CT] can lead to dangerous voltage build up that can eventually lead to…
Temperature kills motors. Temperature is the most common cause behind motor damage. A 10-degree centigrade increase in insulation temperature decrease…