JJF 1264-2010 English PDF

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JJF 1264-2010: Calibration Specification for Burden Box of Instrument Transformers
Status: Valid

JJF 1264: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1264-2010	299	Add to Cart	3 days	Calibration Specification for Burden Box of Instrument Transformers	Valid
JJF 1264-1990	199	Add to Cart	2 days	O.T.N. of the Secondary Standard for the Horizontal Low-frequency Vibration	Obsolete

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Basic data

Standard ID: JJF 1264-2010 (JJF1264-2010)
Description (Translated English): Calibration Specification for Burden Box of Instrument Transformers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Classification of International Standard: 17.220
Word Count Estimation: 13,186
Date of Issue: 2010-09-06
Date of Implementation: 2010-12-06
Quoted Standard: JJF 1059-1999
Regulation (derived from): AQSIQ Announcement No. 100 of 2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the rated frequency of 50Hz or 60Hz, use environment ju degrees (0 ~ 40)��C Calibration of transformer load box.

JJF 1264-2010: Calibration Specification for Burden Box of Instrument Transformers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Burden Box of Instrument Transformers People's Republic of China National Metrology Technical Specifications Transformer load box calibration specification Issued on. 2010-09-06 2010-12-06 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Transformer load box calibration specification This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on September 6, 2010, and from From December 6, 2010 into effect. Focal point. the National Technical Committee on Electromagnetic measurement The main drafting units. Shandong Institute of Metrology The national high voltage metering station Participated in the drafting. Zhejiang Lishui Electric Power Bureau Henan Institute of Metrology This specification by the responsible National Technical Committee Electromagnetic measurement interpretation The main drafters of this specification. Song Tao (Shandong Province Institute of Metrology) Xinjun (Shandong Province Institute of Metrology) In Xiaolin (Shandong Province Institute of Metrology) Wangle Ren (the national high voltage metering station) Drafters participate. Liping (Lishui Electric Power Bureau) STAFF time (Henan Institute of Metrology)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 Metrological characteristics (2) 4.1 Indication error (2) 4.2 The maximum permissible error (2) 4.3 Insulation resistance (3) Calibration Condition 5 (3) Environmental conditions 5.1 (3) 5.2 Power and conditioning equipment (3) 5.3 standard (3) 6 calibration items and calibration methods (3) 6.1 calibration items (3) 6.2 Calibration method (4) Expression 7 Calibration results (5) Appendix A calibration original record format (6) Appendix B calibration certificate (7) Transformer load box calibration specification

1 Scope

This specification applies to the rated frequency of 50Hz or 60Hz, use of ambient temperature (0 ~ 40) ℃ transformer negative Dutch tank calibration.

2 Citations

JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement When using this specification it should be noted that using the currently valid version of the documents cited.

3 Overview

Transformer load box is a multi-measurement values during calibration transformers, analog load to be corrected transformer appliance. Load boxes usually have impedance and impedance transform two structural types. Impedance load box consists of resistive and inductive components, principle circuit shown in Figure 1. Current transformer load box by the impedance Cells in series, shown in Figure 1 (a); voltage transformer load box consists of parallel admittance unit, shown in Figure 1 (b). (A) impedance current transformer load box (b) impedance voltage transformer load box

1 impedance transformer load box principle circuit diagram

K- switch; Z- current transformer load box impedance; Y- voltage transformer load box admittance Impedance transformation type current transformer load box consists of a variable impedance unit and a current transformer ratio configuration, principle Line in Figure 2 (a). Impedance conversion voltage transformer load box by an admittance unit and a variable voltage transformer ratio Constituted, the principle of the line shown in Figure 2 (b). (A) current transformer load impedance conversion box (b) impedance conversion voltage transformer load box Figure 2 impedance conversion transformer load box principle line TI- variable ratio current transformer; ZP- impedance unit; TU- variable voltage transformer ratio; YD- admittance unit ......

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