This recommended practice defines a common viewpoint of the evaluation of uncertainty in calibration and its application in testing procedures for Instrument Transformers (ITs). Definition of how to take into account the sources of uncertainty of the measurement system and how to combine their effects in order to evaluate the uncertainty on the measurement results. The recommended practice also presents the common requirements to be used during tests for assessing the accuracy of ITs.

定价： 57元 / 折扣价： 49 元

This guide describes the test procedure for electrical measurement of partial discharge (PD) in bushings and instrument transformers using wide-band measuring instruments for the evaluation of the apparent charge level of PD occurring under ac and dc test voltages.

定价： 79元 / 折扣价： 68 元

The standard provides a description of the criteria necessary for manufacturers to maintain and assure measurement traceability of radionuclides to the National Institute of Standards and Technology (NIST). These criteria are provided in the following areas: a) Quality assurance program; b) Facilities and equipment; c) Participation in a NIST Measurements Assurance Program (MAP); d) Certificates

定价： 135元 / 折扣价： 115 元

This standard defines an exchange format, utilizing extensible markup language (XML), for both the static description of instrument models, and the specific description of instrument instance information.

定价： 82元 / 折扣价： 70 元

This guide describes the test procedure for the electrical measurement of partial discharges (PDs) occurring in Bushings and Instruments Transformers during AC and DC dielectric tests. General principles of PD measurements, including the narrowband method, are covered in IEC 60270 "High-voltage test techniques - Partial discharge measurements".

定价： 106元 / 折扣价： 91 元

This standard is intended for use as a supplement to IEEE Std C57.13-2016 and as a basis for performance and safety of equipment.1 It also describes test sequences, criteria, methods, and documentation for tests. This standard applies to single-phase instrument transformers of a nominal system voltage of 115 kV and above with capacitive insulation system for line-to-ground connection and for both indoor and outdoor application.

定价： 104元 / 折扣价： 89 元

This recommended practice provides Instrument Description templates, compliant with IEEE 1671.2, that providers of synthetic instruments should use to describe waveform generators, digitizers, external local oscillators, and up and down converter.

定价： 198元 / 折扣价： 169 元