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Published byRudolph Pitts Modified over 8 years ago
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Energy Meters Production & Testing SHIVJI LAL CHOUDHARY
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Device to measure electrical consumption in units. Electric meters are typically calibrated in billing units, the most common one being the kilowatt hour.
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EElectromechanical Meters. EElectronic Meters.
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PCB Manufacturing steps Commercial production methods Hobbyist prototype
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Saving of time Saving of space on the circuit board Saving of wires Low cost Reliablity Automation
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Only little current can flow between the components as the copper tracks are very thin. Soldering requires extreme precaution as it can damage the copper tracks.
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Preprocessing Photolithography ◦ Appliying photoresist ◦ Exposure to UV ◦ Development ◦ Etching ◦ Stripping ◦ Drilling ◦ Bareboard Testing ◦ Soldering
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SMT stands for Surface Mount Technology. One of the latest trend in the Electronics industry. It is a technology in which surface mount components are directly mounted on the surface of Printed Circuit Board.
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Smaller in Size. Fewer holes need to be drilled through boards. Simpler automated assembly. Components can be placed on both sides of the circuit board. Faster Assembly.
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CComplicated process MManual prototype is difficult IIt cannot be used on the breadboards SSolder connection may damage the components.
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Liquid Crystal Display Real Time Clock Current Transformer
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Based on microcontroller. 10 bits ADC. Non-Volatile Flash memory. Linear Approximation.
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Self Dignostic Features Maximum Demand Communication Power Off Auto Display Name Plate Recording Tamper and Fraud Monitering
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ASIC processor. Rms calculation upto 30 th harmonic. Sample rate 320 k samples.
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External Tampering Magnetic field Tampering. Neutral Tampering. High Frequency & High Voltage Tampering
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Internal Tampering Internal Connection Tampering. Loose Wire Connection. By-Passing the coil.
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AAnalog Bench. SSemi Automatic bench. AAutomatic Bench.
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TType Test. RRoutine Test. AAcceptance Test.
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MMechnaical Requirement RResistance to Heat & Fire. CClimatic Influences. EElectrical Parameters. IInsulation Properties. IInfluence of Heating IInfluence of Supply voltage
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EMC & EMI Accuracy. NNo-load condition.
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A brief knowledge about the energy meters. Knowledge about single phase & three phase meters. Testing of Meters.
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Any Queries.
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Thank You.
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