Electrical Metrology Division
Introduction
ElecElectrical Metrology Division of National Physical & Standards Laboratory (NPSL) is mandated to disseminate and maintain National Standards for DC Voltage & Resistance, Current, Inductance Capacitance and Power.
In addition to this Laboratory Quality management System (LQMS) is being practiced to remain in accordance and fulfill requirements of ISO 17025
Functions of EMD
- Realizing the primary standards and maintaining the national / reference standards in the field of electrical measurements>
- Maintaining the traceability of electrical standards through ILCs and bilateral arrangements with NMIs of other countries
- To improve and develop measurement techniques for Test / calibration in the field of electrical metrology
- To provide test and calibration services to public / private industrial sector, especially to the defence organizations of the country
- To carry out testing & standardization of electrical home appliances like PVC cables, electronics blasts and vinyl tiles
- To provide training, consultancy and advisory services to different public and private departments / organizations of the country in the field of electrical metrology
- Conducting specific R & D work to develop and improve the in use calibration techniques and supporting instrumentation in the field of electrical metrology
- Realizing and establishment of primary standards of voltage through Josephson Voltage Standard (JVS) system for 1 Volt and 10 Volt.
Future Goals / Targets / Plans
- • To establish facilities for on-site calibration to the customers in the field of electrical metrology
- • To enhance the electrical measurement capabilities and facilities regarding range & Accuracy for:
AC/DC Voltage. Up to 50 kV
AC/DC Current. Up to 100 A
- Improvement in existing measurement techniques including uncertainty budget in the field of electrical measurement
- Visit to concerned local industries to find out their problems related to trade and to extend expertise to them.
- In-house training of the metrologists on calibration techniques in electrical measurements under provision of BMR Project
- To enhance the range and accuracy of the parameters in the accredited scope related with Electrical Metrology
- Participation in national / international ILC and key comparison in electrical parameters arranged by concerned metrology bodies and NMIs
- Training of the metrologists on improved calibration techniques in electrical measurements from NMIs of the Asia Pacific Region and the developed countries
- Interaction with other NMI’s and metrology institutes regarding expert visits and the latest calibration techniques
PNAC Accredited Calibration Facilities
Parameter |
Range |
Uncertainty |
DC Voltage |
0 ---1200 V |
±3 x 10 -4 |
AC Voltage |
0 – 1050 Volts
(10 HZ – 1.5 MHz)
|
± 0.01 % |
DC Current |
0 – 20 Amps
20 -1000 Amps
(with Coils)
|
± 0.14 %
± 0.015%
|
AC Current |
0 – 20 Amps
(10 Hz –30KHz)
20 -1000 A
(with Coils)
|
± 0.05 %
± 0.07 %
|
Resistance |
0 Ω – 100 KΩ
100 kΩ– 1MΩ 1 MΩ–400MΩ
|
± 1 PPM–
-8PPM
± 16PPM
± 0.02%
|
Inductance |
1 µH – 100 H |
± 0.03 % |
Power
(DC / AC)
|
1 mW – 20 KW |
± 0.03 % (DC) |
Equipment
Universal Calibration System
Reference Digital Multimeter
Standard Resister
Multifunction Calibrator
Contact Personnel
Head Electrical Metrology Division
Phone: +92 51 9257462-7, Ext. 228, 241
Fax: +92 519258162