Industrial interaction presentation on 1phase static energy meter

By: UDAY

SEC-EC,C2 ROLL-1203531137

COMPANY PROFILE• Pal Mohan Electronics Pvt. Ltd. is one of the

conglomerate company of Pal Mohan Group of companies engaged in manufacturing of Pal Mohan make single phase and three phase static Watt-hour meters of assorted ratings and molded engineering plastic meter boxes for Housing Energy Meters at its modern and well equipped plant at Kirti Nagar, New Delhi.

• Pal Mohan Electronics Pvt. Ltd is an ISO: 9001:2000 certified company, which is recognition of adopting international quality standards at all stages at its works.

CONTENTS: HOW ENERGY METER WORKS? UNIT OF MEASUREMENT. TYPE OF ENERGY METER. TYPES OF ENERGY METER TAMPERING AND SECURITY MAIN FUNCTION PRODUCTION OF METER STORE DEPARTMENT QUALITY AND CONTROL DEPAERTMENT TESTING PACKAGING

How Energy Meter works ?1.Energy meter calculate power.2.Power is the product of voltage and

current.3.In electronic energy meter the current and

voltages are first calculated by using separate transducers.

4.Electronic mater possess a microprocessor which is interfaced by a programmable peripheral device which receive its input from two CT.

1phase Energy meter

3phase energy meter

3phase meter Test bench of 3 phase

Unit of measurement Most common unit of measurement is

killowatt hour(kwh). 1kwh=amount of energy used by a load of

1 kw over a period of 1hr. It is also equal to 3,600,000 joule. Some electricity companies use the si

mega-joule instead

Types of energy meter1.Electromechanical meters.2.Electronic meter.3.Communication meter.

Electro-Mechanical meter• O • Operate by

counting the revolution of the aluminum disk.

• No.of revolution is proportional to energy usage.

• If the time taken by disk=t, then power p=3600*kh/t

Electronic energy meter• Fig. • Uses LCD or LED

display.• Can transmit

reading to remote place.

• It also can record the parameters.

Communication meters.• Remote meter reading is practicle

example of telemetry.• Allow more measurement and

remote provisioning.• It save cost of human meter reading

reader and resulting mistake.• Ex. GSM meter , RF meter etc.

Tampering and security• Common method of tampering on older

meter is attaching magnet outside the meter.• Some combination od capacitor and

inductive load also reduce or reverse the motion of disk.

• Modern meter is free from tampering as it can detect and stores the last value with date and time

• Some meter have sensor which can report opening of meter cover.

Main functions1.Energy measurement.2.Maximum demand.3.View data.4.Anti-tamper.5.Authenticated billing code.

Production of meter1.Store

departments.2.Quality and

control department.

3.Meter testing and packing.

Store departments• Basically it is big

room that carries or store all raw material.

• From big materials to small screw of Meter everything is stored here.

Quality and control department

1.Components and process of checking quality.

a)PCBb)Capacitors(ELCO)c)Screwsd)Body with terminal block

2. ControlFlow wire test apparatus.

• It is a instrument that creates high Temperature at rof by which body is tested.

• Temperature for front and back body is 600c.

• Temperature for terminal block is 900c.• If the body get burn that that should be

rejected.

Meter testing• Starting test.• Accuracy test• Frequency test• Voltage variation

test• Repeatable test• Creep test• Harmonic test• Dial test

Meter packaging1.Meter cleaning.2.Visual inspection.3.Short jumper.4.Scanning meter

code.5.Feed meter.6.Covering(Meter

lock)7.Visual inspection

8. Final ultrasonic welding.9. Push button fixing.10. Function test.11. Hologram pasting12. Meter coding.13. Final packing.

THANK..YOU...