| Sl No |
Description |
Technical specification and Display parameter |
| 1 |
Standards |
IS:13779,IEC 1036 & CBIP technical reportNo 88 and its
latest amendments |
| 2 |
Voltage |
240 volts(P-N), +20% to - 40% V ref,However the meter
should withstand and maximum system voltage i.e. 440
volts |
| 3 |
Rating |
5-30A, 10-60A |
| 4 |
Display |
LCD(six digits) |
| 5 |
MD Registration |
Meter shall store MD every 15 minutes period along with
date 7 time. At the end of every 15 minutes,new MD
shall be previous MD and store which ever is higher and
the same shall be displayed. |
| 6 |
Test out put device
|
flashing LED visible from the front |
| 7 |
Body of the meter |
a) Top transparent and base opaque material
polycarbonate of LEXAN 143A/943AA or equivalent
grade b) Front cover and base should be ultrasonically
welded C) Top cover should be designed so as the
internal component should not be visible |
| 8 |
Terminal block |
made of polycarbonate of grade 500R or equivalent
brass or copper current terminals with flat head brass
crews
|
| 9 |
Terminal cover |
transparent materials cover with provision of dealing
through sealings screws
|
| 10 |
Diagram of connection |
Diagram of external connection to be shown on terminal
cover
|
| 11 |
Marking on the name plate |
meter should be clearly visible ,indelible,and distingly
name plate marked in acordance with IS specifications |
| |
c)variation in voltage |
AS per IS: 14697:1999 |
| 10 |
Accuracy class |
0.2s |
| 11 |
Total weight of the case |
<2kg |
| 12 |
Details of case |
polycarbonate(seamless ultrasonic welding with
transperent meter top cover) |
| 13 |
HV withstand |
4kv as per IS 14697:1999 cause 12.7.6.3 |
| 14 |
Insulation resistance |
As per 14697:1999 |
| 15 |
Standard to which the meter conferm |
AS per IS 14697: 1999 |
| 16 |
Type of energy Registration mechanism |
Backlid LCD Display |
| 17 |
MD Reset mechanism |
1.Automatic on 24:00 hours of the last day of the month 2.manual Reset |
| 18 |
Insulation test |
As per 14697:1999 |
| 19 |
Temparature co-efficient from 10% of
rated load(5deg.C to 45deg.C) |
As per 14697:1999 |
| 20 |
Working range |
|
| |
voltage |
(-)50% to (+)20% of rated voltage |
| |
current |
0.1% to 120% of Ib |
| 21 |
Type of load(linear,non
linear,balanced/unbalanced at any p.f) |
All types of load |
| 22 |
Display Details(Descriptive in order of
display) |
1) Display test |
| |
|
real time and date |
| |
|
rising demand with elapsed time |
| |
|
active energy |
| |
|
reactive energy( both lag &lead) |
| |
|
apparent energy |
| |
|
Maximum Demand(both KW & KVA) |
| |
|
MD reset count |
| |
|
Instantenuous power factor with sign for lag &lead |
| |
|
Instantenuous frequency |
| |
|
Instantenuous voltage( phase wise) |
| |
|
Instantenuous current(phase wise) |
| |
|
Instantenuous Activeload
|
| |
|
Instantenuous reactive load(withsign for lag/lead) |
| |
|
Instantenuous apparent load |
| |
|
Billing power on hours
|
| |
|
TODenergie |
| |
|
TOD Max demand in kva
|
| |
|
Cumulative max demand |
| |
|
present status of temper |
| |
> |
latest occurrence of Abnormality with date &time |
| |
|
latest restoration of abnormality with date & time |
| |
ii)process of display(Automatic in
cyclicmanner/through push botton |
1)Automatic in cyclic manner(No 1,2,3,4,5,6,7,8,9)
2)through push botton |
| |
iii) Digits |
8(Eight) digits |
| |
iv)Segments for display of one digit |
7(seven) |
| |
iv) Period of display for each parameter |
12(twelve) Seconds |
| 23 |
Memory |
non volatile memory without battery back up at least
12 years
|
| 24 |
Non volatile memory |
Sufficient to store data(MD &energy) of
consecutive12 biiling period in addition to tamper
details7 TOD Zones,tamper information as
described in detailed technical specification
|
| 25 |
Meter can power up by means of external
battery in absence of supply voltage |
meter can be powered up by means of internal
battery in absence of supply voltage |
| 26 |
Tamper data preservation capacity |
Able to store at least 200
events(occurrence&restoration as separate events
with roll over facility |
| 27 |
Multiplying factor(if meter is used for
different voltage) |
CT ratio and PT ratio is programmable for direct
reading from the meter,However if purchaser
requires,he may also use a multiplication factor
without programming CT ratio and PT Ratio. |
| 28 |
load survey capability |
|
| |
a) Parameter logged |
KW import,KVA |
| |
b) Logging interval |
15 minutes |
| |
c)no of days load survey |
70 days at interval of 15 minutes
|
| 29 |
Earthing terminals |
AS per IS 14697:1999
|
| 30 |
Time of the zone |
zone-1- 7am to 10am |
| |
|
zone-2- 10am to 18pm |
| |
|
zone-3-18pm tp22pm |
| |
|
zone-4-22pm to 6am |
| |
|
zone -5- 6am to 7 am |
| 31 |
Capability for fraud prevention& detection |
The meter stores in its memory occurrence and
restoration the following tampers with date &time
and also log of the event |
| |
|
Missing potential |
| |
|
CT short/Ct open |
| |
|
Current reversal |
| |
|
current unbalance |
| |
|
current missing |
| 32 |
Sealing and locking arrangement |
2 sealing screws on the meter cover& 2 sealing
screw on terminal cover are provided.Separate
sealing arrangement are provided for MD reset
button& optical port |
| 33 |
Type of communication |
data can be transferred to and fro from aCmRI
conforming to CBIP-111 through optical port
conforming to IEC-1107 provided in front of the
meter.data can also be transferred through central
based computer using GSPMS lines and suitable
modems.The data element size and its overhead
speed of transmission should less than 10 minutes |
| |
Others |
meter should record energy correctly |
| |
|
i) in case of Current reversal |
| |
|
II)In case of neutral fail |
| |
|
iii)In case of neutral disturbance |
| |
|
iv) meter should record at Imax in any tamper event
due to magnatic influence
|
| 34 |
Real time Clock |
Time drift of Real time clock in the meteris less
than±7 minutes per years |
