IEC 60358-4-2018 pdf download.Coupling capacitors and capacitor dividers – Part 4: DC or AC single-phase capacitor dividers.
This Part 4 of IEC 60358 applies to DC or AC single-phase capacitor-dividers connected between line and ground used for manufacturing Voltage Transformers as well as for other applications.
NOTE 1 Diagrams of dividers to which this standard applies are given in Figures 401 and 402 (402.1 and 402.2).
NOTE 2 This standard specifies the basic requirements of the dividers; the requirements of the complete Voltage Transformers are given in the IEC 61 869 series.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60358-1 :201 2, Coupling capacitors and capacitor dividers – Part 1: General rules
3 Terms and definitions
Clause 3 of IEC 60358-1 :201 2 is applicable with the following additional text:
Subclause 3.1 .6 is applicable with the following additional Note:
NOTE For DC voltage divider, U m include also peak voltage of harmonics.
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.400 Voltage divider definitions
3.400.1 voltage divider
device comprising resistors, inductors, capacitors, transformer(s) or a combination of these components such that, between two points of the device, a desired fraction of the voltage applied to the device as a whole can be obtained
Note 1 to entry: In this standard, voltage divider consists on HV-part, internal and/or external LV-part. [SOURCE: IEC 60050-31 2:2001 , 31 2-02-32]
3.400.2 rated primary voltage
U pr value of the primary voltage which appears in the designation of the voltage divider and on which its performance is based
Note 1 to entry For a divider the performance is everything concerning the measurement behaviour:transformation ratio, accuracy, burden, input voltage range, etc.
[SOURCE: IEC 60050-321 :1 986, 321 -01 -1 2, modified (“voltage transformer” replaced by “voltage divider”, Note 1 to entry added)]
3.400.3 rated secondary voltage
U sr value of the secondary voltage which appears in the designation of the voltage transformer and on which its performance is based
[SOURCE: IEC 60050-321 :1 986, 321 -01 -1 6]
3.400.4 capacitor voltage divider
C-Divider voltage divider consisting only of capacitors
[SOURCE: IEC 60050-321 :1 986, 321 -03-1 5]
3.400.5 R-C voltage divider
RC-Divider voltage divider consisting capacitors with parallel connected resistors
3.400.6 C-R voltage divider
CR-divider voltage divider consisting capacitors with series connected resistors
3.400.7 R-C-R voltage divider
RCR-divider voltage divider consisting capacitors with series & parallel connected resistors
3.400.8 rated capacitance of divider C R
capacitance value for which the divider has been designed.IEC 60358-4 pdf download.