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EVS-EN 61620:2002

Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method

General information

Valid from 01.11.2002
Base Documents
IEC 61620:1998; EN 61620:1999
ICS Groups
17.220.99 Other standards related to electricity and magnetism 29.040.01 Insulating fluids in general
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.11.2002
Main
EVS-EN 61620:2002
This International Standard describes a method for the simultaneous measurement of conductance (G) and capacitance (C) enabling the calculation of the dielectric dissipation factor (tan delta) of insulating liquids. The proposed method applies both to unused insulating liquids and insulating liquids in service in transformers and in other electrical equipment.
The standard is no substitute for IEC 60247; rather it complements it insofar as it is particularly suited to highly insulating liquids and it recommends a method of measurement for these liquids. This method allows values of the dielectric dissipation faxtor as low as 0,0000001(10-6) at power frequency to be determined with certainty. Moreover, the range of measurements of (tan delta) lies between 0,0000001 (10-6) and 1 and can be extended up to 200 in particular conditions.

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English