20-12-2012, 11:52 AM
SINGLE PHASE ENERGY METER
SINGLE PHASE.pptx (Size: 59.19 KB / Downloads: 85)
PRINCIPLE:-
The single phase induction type energy meter utilises
the fundamental principle of Electromagnetic induction.
ADVANTAGES:-
The induction type energy meter have high accuracy.
They are simple and robust in construction.
They require minimum maintenance.
They are cheap in cost.
Their range can be increased by using instrument
transformer.
DISADVANTAGES:-
They can work only on A.C. Circuits.
Errors are involved due to creeping and non –symmetry
of magnetic circuit.