Methods to Reduce Step Potential and Touch Potential in Substation
Step Potential and Touch Potentials are very important in substations because during ground faults all the ground current returns to
Substation Safety Clearances
Majority of electrical substations will be air insulated type. All the electrical equipment live parts will be exposed .All the
Advantages and Disadvantages of Air Blast Circuit Breakers
In air blast circuit breakers, compressed air at a pressure of 20-30 kg/cm2 is employed as an arc quenching medium. Air
Shunt Vs Series Capacitors Advantages
Shunt Vs Series Capacitors Advantages Capacitors aid in minimizing losses and helps in reducing operating expenses. Capacitors should be placed
Types of Flow Meters
Types of flow meters are divided into two groups. One measures quantity (Positive Displacement); the other measures rate of flow (Inferential).
Split Range Control Working Principle
Split-range control is used when a single controller is employed to control two final-control elements (two valves for example). In
Circuit Breaker Making Capacity
During short circuit, circuit breaker contacts opens and automatically closes after few cycles to determine whether the fault is cleared.
Power Systems Operation and Control Interview questions
What is load curve? The curve drawn between the variations of load on the power station with reference to time
How Integral Controller Reduces offset error ?
First we have to know how offset error appears in Proportional controller. Click here to read the article on proportional
Why Offset in Proportional Controller ?
Proportional controller: With proportional band, the controller output changes in “proportion” to the error between process variable and set point.
