single phase static energy meter
TRANSCRIPT
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.
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
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.