Technical Particulars For Electronic Energy Meter
For RC Period (01-04-2016 To 31-03-2017)
Generated on:
October 2, 2016 7:36 PM
Schedule
1
Unit :
NOS.
No.of
1
2
3
4
5
6
7
8
9
10
phases
SP
SP
SP
SP
3P4W
3P4W
3P4W
3P4W
3P4W
3P4W
AC Static watt hour meters (ISI Marked) with LCD Display
I(b)in
Amps
5
5
10
10
5
5
10
10
20
20
Schedule
2
Unit :
NOS.
NIC
I(max)as V(ref)
%of I(b)
400
600
400
600
400
600
400
600
400
600
CT
240
240
240
240
415
415
415
415
415
415
No
No
No
No
No
No
No
No
No
No
Additional Item For Electronic Energy Meter
Description
1
Common Meter Reading Instrument (CMRI)
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Detailed Specification
Schedule
1
AC Static watt hour meters (ISI Marked) with LCD Display
Specification :
ISI marked AC static watthour meters ( Electronic energy meters) with LCD
Display suitable for measurement of AC electrical active energy in the frequency range
of 50 Hz+/-5% in single phase or three phase system with balanced or unbalanced loads
and conforming to class 1.0 of IS 13779/99 with amendment no:1 to 4(Reaffirmed 2004)
and as per General Technical Requirement.
Schedule
2
Additional Item For Electronic Energy Meter
Specification :
Common Meter Reading Instrument (CMRI) shall be capable of downloading data for all
meters covered under Schedule 1 and shall conform to the requirements of CBIP Technical
Report No.111.
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Questionnaire
Schedule
AC Static watt hour meters (ISI Marked) with LCD Display
1.1
Manufacturer's Name & Place of Manufacturing
1.2
Brand Name & Model Number
1.3
Reference Voltage:240V/415V
1.4
Number of Phases: single Phase/Three phase
1.5
Basic Current I(b) in Amps.
1.6
I(max) % of I(b)
1.7
whether Current Transformer (CT) operated
2.0
Display:
2.1
Size of Digit in Display
3
BIS LICENCE NO.& VALIDITY
4
Size ,Thickness and material of Meter Case,Terminal Cover,&Terminal
Box.
5
Deviation,if any,from tender specification.
6
Additional features/functions,if any.
7
Battery Cell used in the Energy Meter
7.1
Make
7.2
Model
7.3
AH Capacity
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General Technical requirement For TE :
1. All Electronic Meters shall meet the requirements
of Central Electricity Authority
(Installation & Operation of meters)Regulations,2006 vide Gazette Notification No.
502/70/CEA/DP&P dated 17th March, 2006.
2. All
meters shall be of static type.
3. All the three phase meters shall have data storage capacity for at least 35 days
in a non-volatile memory.
4. All the meters shall be sealed by the manufacturer at its works. Polycarbonate or
acrylic seals or plastic seals or holographic seals or any other superior seal
shall be used.
5. 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 manufacturing, procurement, storage, record keeping, installation,
series of inspection, removal and disposal.
6. Immunity to External Factors(as per schedule of act):The meter shall be immune to external influences in respect of parameters
covered in IS:13779/99 with amendment nos. 1 to 4.
7. Anti-Tampering Features:The meters shall be provided with anti-tampering features listed below:(i)The meter shall not get damaged or rendered non-functional even if any phase
and neutral are interchanged. Meter shall operate accurately even when Phase and
Neutral are interchanged at the supply side of meter. LED or LCD indication shall be
provided on the meter wherever such tamper occurs for indication purpose.
(ii)The meter shall register energy even when the return path of the load current
is not terminated back at the meter and in such a case the circuit shall be completed
through the earth. In case of metallic bodies, the earth terminal shall be brought
out and provided on the outside of the case.
(iii) Meter shall operate accurately even when incoming mains is connected to
outgoing terminals and load is connected to incoming terminals. LED or LCD indication
shall be provided on the meter wherever such tamper occurs.
(iv)Three Phase meters shall have
anti tampering features like Phase sequence
reversal, current reversal, missing potential and missing neutral.
(v)In the case of 3 phase/4 wire system, the meter shall keep working even in
the presence of any two wires i.e.even in the absence of neutral and any one phase or
any two phases. In the case of 3 phase/3 wire meter, even if reference Y phase is
removed, the meter shall continue to work.
(vi)In case of whole current meters and LV-CT operated meter, the meter shall be
capable of recording energy correctly even if input and output terminals are
interchanged.
(vii)The registration must occur whether input phase or neutral wire are connected
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properly or they are interchanged at the input terminals.
(viii)The meter shall be factory calibrated and shall be sealed suitably before
dispatch.
(ix) Neutral missing feature: Meter will register energy even if neutral is
disconnected from both ends and load is earthed in single phase.
8. The meter shall have down loading facilities of metered data through Common Meter
Reading Instrument(CMRI).The CMRI shall conform to the requirements of CBIP Technical
Report No.111.
9. The terminal block, terminal cover and meter case shall ensure reasonable safety
against spread of fire.
10. Energy meter shall be
projection mounted type.
11. Suppliers shall furnish complete and satisfactory type test certificate (TTC) for
EACH rating of meter and CMRI. In addition
to the test reports from Central
Government labs, test reports from NABL / ILAC approved labs shall also be acceptable.
Separate Type test certificates, covering only additional Anti-tampering features and
additional features- may be considered acceptable for same type of Electronic Energy
Meter which has already been type tested from NABL / ILAC / Central Government labs
and its TTC is submitted by the firm.
12. The meter shall have downloading facility of metered data through common meter
reading instrument(CMRI)through galvanically isolated optical RS-232 Port or any other
latest technology.
13. Following value added features should be provided in the meter:a.Measurement and display of Instantaneous voltage,current,power factor and frequency.
b.Measurement and display of billing parameters.
c.Logging of tamper events (50 or more events) with date and time in the memory for
downloading through Basic computer Software (BCS).
14. TTC for CMRI shall be as per requirement of CBIP Technical Report No.111.
TP Prepared By
TP Scrutenised By
Name
G.R.K.PILLAI
Rohit Kumar
Desig
AD(QA)
DY.DIRECTOR(Q.A.)
01-09-2015
TP Approved By
Date
01-09-2015
TP Recommended By
Page 5 of 6
Name
S.K.Jain
Desig
DQA
DDG(QA)
Date
01-09-2015
01-09-2015
Forwarded to(Purchase Dte.): DS&D-Hyderabad
With Ref. To(Pur. Wing No.): EEM/HYD-2/RC-B2040000/0317/H2
QA Wing Ref. No.
HYD/TP/ENERGY METER
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