BSES Delhi : Check Complaint Status

Organization : BSES Rajdhani and Yamuna Power Ltd Delhi
Facility : Check Complaint Status

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Related / Similar Facility : BSES Delhi New Connection Online Application

What is an Energy Meter?
An energy meter is a device to measure the consumption of energy.

How is the accuracy of a meter defined?
As per IS 137779/ IEC61036/ ID13010 accuracy of a meter is defined by comparing the difference of energy consumption recorded by “Meter under test” and of the “Reference Meter”.
Accuracy (%) = (EMUT – ERef) x 100 (E Ref)
The accuracy of both Mechanical and Electronic meter is defined by above equation.

How are meters classified and what are the relevant technologies?
Meters are classified as following:-
** Household single phase meter – Mechanical/ Electronic meter
** Household three phase meter – Mechanical/ Electronic meter
** Commercial Meter – Electronic meter
** Industrial Meter – Electronic meter
** HT Meter – Electronic meter
** Grid Meter – Electronic meter
** Reference Meter – Electronic meter

What is the effect of aging on energy consumption recording?
Since the mechanical meters have moving parts, so with use these have the tendency of wear and tear resulting in low energy consumption.
Same is not applicable for electronic meter as it is a static device.

Meters accuracy are defined at reference conditions. However, in field voltage, Frequency and Temperature are different. What is the effect of the same?
The permissible effect of field voltage, frequency and temperature on accuracy is defined in IS/ CBIP/ IEC standards. All energy meters in India, in general follow these standards.

What are the responsibilities of ISI license holder?
After evaluating the product and the manufacturing capabilities, the Bureau of Indian Standard (BIS) issues the ISI license to the manufacturer. Meter manufacturer has to ensure all meters strictly follow the relevant Indian Standards and test records of the same are maintained. The misconception that the service company can ask manufacturer to make meters with very high positive error (fast meter) is not possible as if it is found so, the ISI license of the manufacturer can be withdrawn by BIS.

What is the Maximum Demand Indicator (MDI)? What is its significance for consumer?
Maximum Demand Indicator is an indication about the maximum load used by the consumer for the duration of half-an-hour in the given period. This parameter is significant both for consumer and the service company to decide the sanctioned load and also to plan the network capacity.
Kindly note – Exceeding the sanctioned load attracts penalty.

What is the meaning of down loading of parameter?
Various parameters measured and recorded by the instrument are finally downloaded for billing/ monitoring purpose. The downloading of parameter means transferring the parameters from meter to the records of the service company. Downloading can be manual i.e. by reading the LCD display recording on a notebook or using some gadgets.

What is the meaning of a MRI reading?
The gadget used for downloading data is called Meter Reading Instrument (MRI). The biggest advantage of MRI reading is that it avoids human error in recording/ transfer of dat

What is an AMR system?
Downloading of the parameters using electronic gadgets which are attached to the meter without manual intervention is called Automatic Meter Reading (AMR) system. The gadget attached to the meter downloads the parameter and then automatically communicates it to the computer of the service company.

What is EL LED? What does it signify if it glows?
The full form of EL LED is Earth Leakage Light Emitting Diode. An EL LED indicator is available on all electronic meters. If this EL LED glows it indicates an unequal current flowing through the phase and neutral wires. This mismatch can be either due to shortening of neural to earth or leakage of current to earth or that the wire of two premises are touching each other.

What action should a consumer take if the EL- LED glows?
In case the EL LED is found glowing, the consumer should get his wiring checked for the above mentioned defects. Click here for RWA nominated electricians trained by BSES to check internal house wiring.

What is the significance of REV LED?
The REV LED indicator lights up to show the reverse flow of energy from consumer to the grid.

What action consumer should take if REV LED glows?
In case REV LED is glowing then the consumer should ensure that generator/ inverter is totally isolated from the grid. Ever after that if the REV LED is found ON the consumer should call the service company for a check.
Kindly note the glowing of REV LED does not affect the accuracy of energy meters. Sometimes “REV” LED glows at “no load” condition and can thus be ignored.

What is the role of “N cut” and what action consumer should take?
The “N cut” LED (which is provided in few meters) indicates a loose wire at the meter end. In case consumer finds such LED glowing he should call the service company for retightening of all the wires in the meter to ensure proper supply to meter.