Facilities instructions, standards, and techniques volume 310. If 1,000 watts of power is consumed during a period of one hour, one kilowatt. Implementation of a threephase electronic watthour meter using the msp430f677xa 2 system diagrams figure 1 shows typical connections for onephase electronic electricity energye meters in real life applications. Facilities instructions, standards, and techniques volume 310 watt hour meter maintenance and testing internet version of this manual created december 2000 facilities engineering branch denver office denver, colorado the appearance of the internet version of this manual may differ from the original, but the contents do not. Let ez meter help you accomplish your energy goals. How to read a digital watthour meter to get your present rate of power consumption. They are typically calibrated in billing units, the most common one being the kilowatt hour kwh. Running a 5,000 watt electric clothes dryer for one hour consumes 5 kilowatt hours of electricity. What is an electromechanical watt hour meter the basic parts of the meter electronic vs electromechanical meters.
American national standard for watt hour meters, ansi c12. In 1872 samuel gardiner took out the first known patent on an electric meter. Estimated electric bills our meter readers attempt to read your meter every month or every other month bimonthly depending on your. Specifications of polyphase watthour meters mitsubishi. Specification of ac static watt hour meters class 1. Threephase watt hour meter current transformer ct mh 96h mh 96 3. Utilities are one of the electrical departments, which install these instruments at every place like homes, industries, organizations.
The resources referenced here are epo, california code of regulations, and california. This case communication mode will change and meter cannot communication. Focus kwh solidstate meter technical manual bulletin 160. Advanced dinrail meter with a large and easy to read back lighted pixeloriented display. The whm, current transformers, rs485 to usb converter and any other necessary. Compared to the old analog watt hour meter, reading kwh off a digital meter is easy, it just flashes the. The ac kilowatt hour meters used at present operate on the same principle as blathys original. Meath is one of the mitsubishi electric group companies under the business category of factory automation systems. Go deeper into the specs of the 2019 mitsubishi outlander phev, including details on the engine, battery, mpg estimates, charge time, warranty and more. Power quality metering is typically used by utilities to monitor their grid and by large industrial companies looking to ensure the power being supplied to their big machinery is clean, in. P a g e 2 figure 1 illustrates the watt hour meters whm approved for use with tg2000 and tenant billing. Taking into account the requirements of the meter, two.
By implementing the watthour meter, we can know how much amount of electrical energy is used by a. Light commercial kilowatt hour meter, 3phase, 120277 volt autoranging power supply suitable for both 277480v, 4w, wye and 240480v 4wire delta services, 7 jaw. Mitsubishi electronic multimeasuring instrument types me96ssrmb users manual. The equipment can be used for the purpose of measuring the amount of power and managing the. Disk revolutions for one kilowatt hour watthours per kilowatt hour k h watthours per disk rev. A calibration service for wattmeters and watthour meters. Using the 6100a electrical power standard to calibrate. Technical specifications for single phase electronic energy meter of. Summary of contents for mitsubishi electric fra700 page 2 highest level of inverter advanced driving performance makes it possible to support a wide range of applications from variablespeed applications such as conveyance and chemical machines to line control applications such as winding machines and printing machines. Implementation of a singlephase electronic watthour. Specification for ac static watthour meters, class 0. Implementation of a singlephase electronic watthour meter using. Energy meter or watt hour meter is an electrical instrument that measures the amount of electrical energy used by the consumers.
Concentrator module for kilowatt hourenergy meters 5. This format is used for directconnected meter example in figure 1 2. Mitsubishi bf3 kwh meter connected up to our dryer as check meter. Ds50 and ds60 series polyphase switchboard walthour meters. The portable standard watthour meters which will be used in testing are normally provided with a card giving data on disk constants for various makes and models. Before starting meter testing, contact apartment or mobile home park manager, then individual tenants to inform them of your purpose and of the fact that their electric power may be off for a short period of time. Across india, our solutions are helping contribute. As the value increases, the display will automatically change units to kilowatt hours 1 kilowatt hour kwh watt hours.
While the watt s up watt meter will be referred to, the doc wattsons application and use is the same with the exception that it has higher ah and wh measurement ranges, does not have the peak watts measurement and has a somewhat different screen layout. American national standard for physical aspects of watt hour meters covers the physical aspect of watt hour meters, including ratings, wiring, dimensions, markings and general specifications. For instance, a 150 watt bulb plugged in for 1 hour will consume 150 watt hours. Mitsubishi electric is a global leader in electric and electronic equipment for residential, commercial and industrial use. The standard unit of measure used to determine the amount of electricity a customer uses. The unit will also project, in real time, the cost of continued use of the appliance in time periods of hour, day, week, month, and year. As such it probably has less direct bearing on the accuracy and reliability issues of interest to pjm than the other standards. In two hours, it will have consumed 300 watt hours. Watt hour meter basics 1 single phase meter components, constants, and ratios presented by scott sutton northwest electric meter school north seattle community college group 1 purpose of this class. Watthour meter is in fact a measuring device which can evaluate and records the electrical power passing through a circuit in a certain time. Detailed edition before operating the instrument, you should first read thoroughly this operation manual for safe operation and optimized performance of the product. A watt hour meter requires a power supply provided from the three phase network itself. Pi controller mitsubishi electric pacyg60mca installation. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device electric utilities use electric meters installed at customers premises for billing purposes.
The beginnings of the watt hour meter in some ways predate the edisons invention of the light bulb. Watt hour meters whm july 2012 application note 3023 2012 mitsubishi electric us, inc. Single phase meter components, constants, and ratios. Whatever the criteria, the calibration system must have the ability to have. The theories and modeling of the kilowatthour meter.
Implementation of a threephase electronic watthour meter. Energy measurements and conversion iowa state university. Precautions before use please consult with a mitsubishi electric representative when considering the application of products presented in this catalogue with machinery or systems designed for. Residential electrical metering for over 100 years, ges metering solutions have provided utilities with a dependable partner known for our robust and quality metering platform. Maximum of 5 units total of 20 channels per gb50a however, the number of units that can be connected to a gb50a is up to 50 including this device, an indoor unit, lossnay unit, etc.
Watthour meter electronic digital watthour meter type ampere voltage 5a 15a 220v 15a 45a. Crompton instruments kilowatt hour energy meters energy division 4297 tyco kilowatt 08 26308 10. The p4460 kill a watt ez is an easy to use consumer power meter allowing the user to accurately measure power consumption of household appliances and to determine the actual cost of power consumed. An electricity meter, electric meter, electrical meter, or energy meter is a device that measures. The recording of energy consumption also has its roots in the late 1800s. Be sure to read the instruction manual fully before using this product. Threephase dinrail kilowatt hour energy meters 7 direct connection panel mounted kilowatt hour energy meters 8 12 ansi ac watt watt hour meters features. The meter is intended for use in the industry, commercial buildings etc. Made in japan year manufactured 1968 single phase 240 volts 40 amperes 50 hertz 480 rev kwh. A calibration service for wattmeters and watthour meters author. Ansi and ieee standards for metering pjm interconnection. This was a dc lamp hour meter that was a clock with an electromagnet that started and. The amount of power the meter can request is limited to the values imposed by regular standards 2 3, in the case of the meter developed the maximum power consumption from the grid is 2 w per phase.
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