CENTRAL ELECTRICITY AUTHORITY (INSTALLATION AND OPERATION OF METERS) REGULATIONS, 2006
(1) These regulations may be called the Central Electricity Authority (Installation and Operation of Meters) Regulations, 2006.
(2) These Regulations shall come into force on the date of their publication in the Gazette of India.
(1) In these regulations, unless the context other wise requires, -
(a) 'Act' means the Electricity Act, 2003;
(b) 'Accredited Test Laboratory' means a test laboratory accredited by National Accreditation Board for Testing and Calibration Laboratories (NABL);
(c) 'Active Energy' means the electricity supplied or consumed during a time interval, being the integral of Active Power with respect to time, measured in the units of 'Watt - hours' or standard multiples thereof. One 'kilowatt -hour' (kWh) is one unit;
(d) 'Active Power' means the electrical power, being the product of root mean square (rms) voltage, root mean square (rms) current and cosine of the phase angle between the voltage and current vectors and measured in units of 'Watt' (W) or in s
(1) These Regulations shall be applicable to meters installed and to be installed by all the generating companies and licensees who are engaged in the business of generation, transmission, trading, distribution, supply of electricity and to all categories of consumers.
(2) After coming into force of these regulations, the provisions of the Indian Electricity Rules, 1956 relating to installation and operation of meters in this regard shall not be applicable.
(3) These regulations provide for type, standards, ownership, location, accuracy class, installation, operation, testing and maintenance, access, sealing, safety, meter reading and recording, meter failure or discrepancies, anti tampering features, quality assurance, calibration and periodical testing of meters, additional meters and adoption of new technologies in respect of followin
(1) All interface meters, consumer meters and energy accounting and audit meters shall be of static type.
(2) The meters not complying with these regulations shall be replaced by the licensee on his own or on request of the consumer. The meters may also be replaced as per the regulations or directions of the Appropriate Commission or pursuant to the reforms programme of the Appropriate Government.
All interface meters, consumer meters and energy accounting and audit meters shall -
(a) comply with the relevant standards of Bureau of Indian Standards (BIS). If BIS Standards are not available for a particular equipment or material, the relevant British Standards (BS), International Electro-technical Commission (EC) Standards, or any other equivalent Standard shall be followed:
Provided that whenever an international Standard or IEC Standard is followed, necessary corrections or modifications shall be made for nominal system frequency, nominal system voltage, ambient temperature, humidity and other conditions prevailing in India before actual adoption of the said Standard;
(b) conform to the standards on 'Installation and Operation of Meters' as specified in Schedule annexed to these regula
(1) Interface meters
(a) All interface meters installed at the points of interconnection with Inter-State Transmission System (ISTS) for the purpose of electricity accounting and billing shall be owned by CTU.
(b) All interface meters installed at the points of interconnection with Intra-State Transmission System excluding the system covered under sub-clause (a) above for the purpose of electricity accounting and billing shall be owned by STU.
(c) All interface meters installed at the points of inter connection between the two licensees excluding those covered under sub-clauses (a) and (b) above for the purpose of electricity accounting and billing shall be owned by respective licensee of each end.
(d) All interface meters installed at the points of
(1) The location of interface meters, consumer meters and energy accounting and audit meters shall be as per the Table given below:
Provided that the generating companies or licensees may install meters at additional locations in their systems depending upon the requirement.
Table
Sl. No Stages Main meter Check meter Standby meter
A. Generating Station On all outgoing feeders. On all outgoing feeders. (i) High Voltage (HV) side of Generator Transformers
(ii) High Voltage (HV) side of all Station Auxiliary Transformers
Explanation: The location of main, check and standby meters installed at the existing generatina stations shall not be changed unless permitted
Every meter shall meet the requirement of accuracy class as specified in the standards given in the Schedule.
(1) Generating company or licensee, as the case may be, shall examine, test and regulate all meters before installation and only correct meters shall be installed.
(2) The meter shall be installed at locations, which are easily accessible for installation, testing, commissioning, reading, recording and maintenance. The place of installation of meter shall be such that minimum inconvenience and disruptions are caused to the site owners and the concerned organizations.
(3) In case of single phase meters, the consumer shall ensure that there is no common neutral or phase or looping of neutral or phase of two or more consumers on consumers' side wiring. If such common neutral or phase or looping of neutral or phase comes to the notice of the licensee, it shall suitably inform the consumer through installation report or regular electricity bi
The operation, testing and maintenance of all types of meters shall be carried out by the generating company or the licensee, as the case may be.q
The owner of the premises where, the meter is installed shall provide access to the authorized representative(s) of the licensee for installation, testing, commissioning, reading and recording and maintenance of meters.
(1) Sealing Arrangements
(a) All meters shall be sealed by the manufacturer at its works. In addition to the seal provided by the manufacturer at its works, the sealing of all meters shall be done as follows at various sealina points as per the standards given in the Schedule:
(i) Sealing of interface meters, shall also be done by both the supplier and the buyer,
(ii) Sealing of consumer meters shall be done by the licensee,
(iii) Sealing of energy accounting and audit meters shall be done by the licensee or generating company as the case may be.
(b) A tracking and recording software for all new seals shall be provided by the manufacturer of the meter so as to track total movement of seals starting from m
(1) The supplier or buyer in whose premises the interface meters are installed shall be responsible for their safety.
(2) The consumer shall, as far as circumstances permit, take precautions for the safety of the consumer meter installed in his premises belonging to the licensee.
(3) Licensee shall be responsible for the safety of the consumer meter located outside the premises of the consumer and the consumer shall be responsible for the safety of the real time display unit installed by the licensee in consumer premises.
(4) The generating company or the licensee who owns the energy accounting and audit meters shall be responsible for its safety.
(1) Interface meters
It shall be the responsibility of the Appropriate Transmission Utility or the licensee to take down the meter reading and record the metered data, maintain database of all the information associated with the interface meters and verify the correctness of metered data and furnish the same to various agencies as per the procedure laid down by the Appropriate Commission.
(2) Consumer meters
(a) It shall be the responsibility of the licensee to record the metered data, maintain database of all the information associated with the consumer meters and verify the correctness of metered data.
(b) The licensee shall maintain accounts for the electricity consumption and other electrical quantities of its consumers.
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(1) Interface meters
(a) Whenever difference between the readings of the Main meter and the Check meter for any month is more than 0.5%, the following steps shall be taken:
(i) checking of CT and VT connections;
(ii) testing of accuracy of interface meter at site with reference standard meter of accuracy class higher than the meter under test.
If the difference exists even after such checking or testing, then the defective meter shall be replaced with a correct meter.
(b) In case of conspicuous failures like burning of meter and erratic display of metered parameters and when the error found in testing of meter is beyond the permissible limit of error provided in the relevant standard, the meter shall be i
The meters shall be provided with such anti-tampering features as per the Standards on Installation and Operation of Meters given in the Schedule.
(1) The distribution licensee shall put in place a system of quality assurance and testing of meters with the approval of Appropriate Commission.
(2) The licensee shall set up appropriate number of accredited testing laboratories or utilize the services of other accredited testing laboratories. The licensee shall take immediate action to get the accreditations of their existing meter testing laboratories from NABL, if not already done.
(3) The generating company or licensee shall ensure that all type, routine and acceptance tests are carried out by the manufacturer complying with the requirement of the relevant IS or BS or IEC as the case may be.
(1) Interface meter
(a) At the time of commissioning, each interface meter shall be tested by the owner at site for accuracy using standard reference meter of better accuracy class than the meter under test.
(b) AII interface meters shall be tested at least once in five years. These meters shall also be tested whenever the energy and other quantities recorded by the meter are abnormal or inconsistent with electrically adjacent meters. Whenever there is unreasonable difference between the quantity recorded by interface meter and the corresponding value monitored at the billing center via communication network, the communication, system and terminal equipment shall be tested and rectified. The meters may be tested using NABL accredited mobile laboratory or at any accredited laboratory and recalibrated if required at manufacturer's works.
In addition to any meter which may be placed for recording the electricity consumed by the consumer, the licensee may connect additional meters, maximum demand indicator or other apparatus as he may think fit for the purposes of ascertaining or regulating either the quantity of electricity supplied to the consumer, or the number of hours during which the supply is given, or the rate per unit of time at which energy is supplied to the consumer, or any other quantity or time connected with the supply to consumer:
Provided that the meter, indicator or apparatus shall not, in the absence of an agreement to the contrary, be placed otherwise than between the distributing mains of the licensee and any meter:
Provided further that, where the charges for the supply of energy depend wholly or partly upon the reading or indication of any such meter
The distribution licensee shall make out a plan for introduction and adoption of new technologies such as pre-paid meters, time of the day meters (TOD), automatic remote meter reading system through appropriate communication system with the approval of the Appropriate Commission or as per the regulations or directions of the Appropriate Commission or pursuant to the reforms programme of the Appropriate Government.
SCHEDULE
(see regulations 2, 5, 8, 12 and 16)
Standards on Installation and Operation of Meters
Part I Standards Common To All Type of Meters
(1) These standards provide for specification of meters, immunity to external factors, sealing points and functional requirements that are required from r
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