Meter field testing and installation practices, Electrical Engineering

Meter Field Testing and Installation Practices

Here, we discuss the installation, commissioning and field testing of meters.

Energy Meters - Installation and Commissioning

The meters are linked before the consumer's isolating device (Main Switch) that might be a moulded case miniature circuit breaker, circuit breaker, or an ironclad switch fuse unit. At the time of commissioning, every meter is tested at site through the owner. A reference standard meter of 0.2 classes or better is used for testing.

Supply Side Wiring

The supply side wiring is the responsibility of the utility and the subsequent must be ensured although carrying it out:

a) The supply wires given are of suitable rating.

b) In case of more than one meter on one service line, it is preferable to use bus-bars. While a number of meters are linked to single distributing mains for registering electricity supplied to various consumer loads, separate service lines - phase(s) and neutral, are used for every meter. Each independently metered consumer load is directly linked to distributing mains by its meter connected in specified phase sequence so as to meet accuracy requirements of relevant standard.

c) The supply wire is properly terminated.

d) The connection is as per links diagram mentioned on meter.

e) Utility should use its own earthing for its devices.

Utility gives phase and neutral supply to the consumers. The neutral is used for carrying return current only. The neutral of one consumer should not be linked to other consumers who have independent and separate supply connection. Utility provides separate neutral to every consumer up the metering point and similar is used through the consumer. The consumer ensures in which all the correct wiring practices are followed and neutral is not looped along with another consumer or meters in the similar premises.  Consumer should not earth the neutral after the metering point. While there are multiple meter installations, bus bar arrangement is used for neutral, so that looping is prevented.

Posted Date: 2/6/2013 8:08:25 AM | Location : United States







Related Discussions:- Meter field testing and installation practices, Assignment Help, Ask Question on Meter field testing and installation practices, Get Answer, Expert's Help, Meter field testing and installation practices Discussions

Write discussion on Meter field testing and installation practices
Your posts are moderated
Related Questions
Starting Methods for Polyphase Induction Motors When high starting torques are required, a wound-rotor induction motor, with external resistances inserted in its rotor circuits

Sing Flag If D7  ( bit left  most bit)  of accumulator  (which  some  exceptions) is 1 as a result  of any  arithmetical  or logical operations sign flag  is set ( bit  corresp

Q. Use a 4-to-1multiplexer to simulate the following: (a) NAND logic function. (b) EXCLUSIVE-OR logic function. (c) Σ m (1, 2, 4).

Find the transmission bandwidth required of a data telemetry system that is to handle three different signals with bandwidths W 1 = 1 kHz, W 2 = 2 kHz, and W 3 = 3 kHz, by emplo

When MT 2 is Negative  and g is positive In this  case  gate  current  flows  through  junctions P 2 N 2   electrons  are injected from  N 2   layer to  P 2   a result  junct

Q. What do you mean by Double Word? A double word is precisely what its name implies, two words. Thus, a double word quantity is 32 bits. Logically, this double word can be div

Q. JFET Common Drain Amplifier? The common drain FET amplifier is similar to the common collector configuration of the bipolar transistor. A general common drain JFET amplifier

Seal Management - Meter Field Testing For an effective seal management system it is necessary that: i) The  seals  used  are  tamper  proof,  that is they  cannot  be  remo

Hello, I have some questions pertaining to electromagnetic induction. Could you please give me a hand? Thanks. If we increase the speed of the bar magnet slowly from 0 to 8, and

Discuss Stepper motor interfaced to the 82C55. A stepper motor rotates into steps in response to digital pulse input. There shaft of the motor rotates in equivalent increments