Indian Standard IS 13779:2020 Quiz

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Questions and Answers

What do the test levels specified in the standard guarantee?

  • Optimal values for proper function of the meter
  • Average values for proper function of the meter
  • Minimum values for proper function of the meter (correct)
  • Maximum 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, 0.5 S, and 1.0 S
  • Class 0.2 S and 0.5 S (correct)
  • Class 1.0 S and 2.0 S
  • Class 0.5 S and 1.0 S

When was this standard first published?

  • 1999
  • 2005
  • 2000
  • 1993 (correct)

What was the purpose of revising this standard?

<p>To integrate all amendments and update some requirements (A)</p> Signup and view all the answers

What is the primary focus of the Indian Standard mentioned in the text?

<p>General requirements and tests for various types of ac static watt-hour meters (D)</p> Signup and view all the answers

What is the significance of IS 14697 mentioned in the text?

<p>It outlines performance levels attainable in transformer operated meters (D)</p> Signup and view all the answers

What was the purpose of revising the Indian Standard mentioned in the text?

<p>To integrate all amendments and update some requirements (B)</p> Signup and view all the answers

Which class of transformer operated meters is covered in a separate Indian Standard, IS 14697?

<p>Class 0.2 S, 0.5 S and 1.0 S (D)</p> Signup and view all the answers

What might be necessary for special applications according to the text?

<p>Other test levels fixed between the user and the manufacturer (C)</p> Signup and view all the answers

What information must every meter bear according to the text?

<p>Manufacturer’s name and/or trade mark, designation of type, and the number of phases and wires (C)</p> Signup and view all the answers

What is the purpose of marking the reference voltage on a meter?

<p>To indicate the nominal voltage of the system or the secondary voltage of the instrument transformer (C)</p> Signup and view all the answers

What should be included in the type designation for a meter related to the rated secondary current?

<p>Basic current and rated maximum current (B)</p> Signup and view all the answers

What does IS 12032 series mentioned in the text refer to?

<p>Graphical symbols (A)</p> Signup and view all the answers

Which piece of information is required to be marked both on a plate fixed to the cover and on the meter base or displayed?

<p>Serial number (B)</p> Signup and view all the answers

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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

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