What is power factor and why it needs to be improved?

In AC power systems along with active power there is always reactive power. Reactive power is either generated or consumed by system elements that have inductive or capacitive reactance (transformers, generators, motors, capacitors, transmission or distribution lines and others). While reactive power is important for some of these elements to operate, it also causes power losses[…]

Overcurrent protection coordination and protection sensitivity

The protection coordination task requires protection sensitivity checks. For over-current protection, sensitivity is the relation of fault and protection pick-up currents. However, over-current protection sensitivity highly depends on fault type: three phase, two phase, phase to ground, two phase and ground fault. Phase currents during a ground fault differ from phase currents during phase to phase faults. For that purpose[…]

Inductive and capacitive loads effect on the power factor

ESMOgrid allows you to easily simulate networks with different load types. Just simply change load power factor or reactive power consumption and simulate impact on the network. Amount of reactive energy also changes voltage and overall losses in the grid. With ESMOgrid you could evaluate your real time power factor correction system before installation, and design kVar requirement[…]