POWER METER

             An electricity meter or energy meter is a device that measures the amount of electric energy consumed by a residence, business, or an electrically powered device. Electricity meters are typically calibrated in billing units, the most common one being the kilowatt hour. A periodic reading of electric meters establishes billing cycles and energy used during a cycle.

An             The KWH Power Meter used in this project is ACE2000 type 292. It is a single phase Power Meter with LCD output to show meter reading. This meter is selected for project because it can give pulse output whenever user uses the meter. The output of the power meter is 1000pulse for each 1KWH. Since the output of the pulse is in 5V for logic 1 and 0V for logic 0. Thus we can direct connect it to PIC microcontroller. The layout of the meter is show below:

Connection of Power Meter

FEATURES + BENEFIT

Key Features		Main Benefits
220-240V 50Hz reference voltage/frequency 1-phase 2-wire network Class 1 or 2 (IEC), Class A or B (MID) accuracy 10A or 20A basic, 100A maximum current Up to 8 switching times for each day type and season giving 160 switching times		Up to six tariff rate registers Maximum Demand for each tariff rate Internal real time clock Display readable without mains power (RWP) Magnetic immunity with magnetic event detection and recording

NOTE:https://www.itron.com/mxca/en/PublishedContent/F14974-4154-ACE2000-Type-292-Brochure-2.pdf

Key Features

Main Benefits

• 220-240V 50Hz reference voltage/frequency
• 1-phase 2-wire network
• Class 1 or 2 (IEC), Class A or B (MID) accuracy
• 10A or 20A basic, 100A maximum current
• Up to 8 switching times for each day type and season giving 160 switching times

• Up to six tariff rate registers
• Maximum Demand for each tariff rate
• Internal real time clock
• Display readable without mains power (RWP)
• Magnetic immunity with magnetic event detection and recording