14 Questions
What do the test levels specified in the standard guarantee?
Minimum values for proper function of the meter
Which class of transformer operated meters is covered in a separate Indian Standard, IS 14697?
Class 0.2 S and 0.5 S
When was this standard first published?
1993
What was the purpose of revising this standard?
To integrate all amendments and update some requirements
What is the primary focus of the Indian Standard mentioned in the text?
General requirements and tests for various types of ac static watt-hour meters
What is the significance of IS 14697 mentioned in the text?
It outlines performance levels attainable in transformer operated meters
What was the purpose of revising the Indian Standard mentioned in the text?
To integrate all amendments and update some requirements
Which class of transformer operated meters is covered in a separate Indian Standard, IS 14697?
Class 0.2 S, 0.5 S and 1.0 S
What might be necessary for special applications according to the text?
Other test levels fixed between the user and the manufacturer
What information must every meter bear according to the text?
Manufacturer’s name and/or trade mark, designation of type, and the number of phases and wires
What is the purpose of marking the reference voltage on a meter?
To indicate the nominal voltage of the system or the secondary voltage of the instrument transformer
What should be included in the type designation for a meter related to the rated secondary current?
Basic current and rated maximum current
What does IS 12032 series mentioned in the text refer to?
Graphical symbols
Which piece of information is required to be marked both on a plate fixed to the cover and on the meter base or displayed?
Serial number
Study Notes
Indian Standard IS 13779: 2020
- a.c. Static Watthour Meters, Class 1 and 2 — Specification (Second Revision)
- Published by Bureau of Indian Standards (BIS) in December 2020
Foreword
- Adopted by the Bureau of Indian Standards after draft finalized by Equipment for Electrical Measurement, Tariff and Load Control Sectional Committee
- Approved by the Electrotechnical Division Council
Publication Details
- Published by Bureau of Indian Standards (BIS)
- MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG, NEW DELHI-110002
- Website: www.bis.gov.in, www.standardsbis.in
- Price Group 11
Test your knowledge about the Indian Standard IS 13779:2020, which specifies the requirements for a.c. static watthour meters, Class 1 and 2. This quiz covers the second revision of the standard provided by the Bureau of Indian Standards (BIS).
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