Basic electronics electrical and engineering Energy Meter.pptx

Basic electronics electrical and electronics energy meter notes

1. ENERGY METER

2. Theory

* Energy meter is an instri rument nt whic h measures
electr 1 as watt-hour
er are

and commercial

installation. Electrical energy is measured in kilo
watt-hours (kWh) by this energy meter.

3. Construction: Driving system

4. Moving system

These two forces constitute a deflecting
torque.

5. Braking system

The braking system consists of a permanent

magnet calle

1 brake magnet. It is placed r

the edge of the disc as the disc rotates in the
à ie Magnet on current

The ‘braking torque is | proportional to the
speed of the disc.

6. Registering system

* the disc spindle is connecte

mechanism this mechanism |
which is proportional to the “number
a oF me disc the

7. Recording
Mechanism

Spindle

Supply
Voltage V

Series Magnet