GB 11920-1989
Replaced
T/CES 052-2021
Active
Group standards
T/CES 052-2021 Technical specification for multi-frequency grounding measurement devices used in power systems
T/CES 052-2021 Technical specification for multi-frequency grounding measurement devices used in power systems
Price:
$ 20.00
Basic Information
Standard Code:
T/CES 052-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Energy, nuclear technology
ICS Name:
Control equipment for power systems
Publish Date:
2021-02-22
Implement Date:
2021-02-25
Scope
Scope: This standard specifies the technical requirements and testing methods for grounding characteristic heterodyne measurement devices used in power systems. This standard applies to voltage levels of 6kV to 1000kV and 40Hz to 60Hz, and four-pole method-based heterodyne grounding impedance measurement instruments and heterodyne grounding characteristic measurement devices in the production and inspection of these devices. Main technical content: This standard is based on the content of the power industry standards "General Technical Conditions for Resistance Measurement Devices" (DL/T 845-2004) and "Guide for Measuring Grounding Characteristic Parameters of Grounding Devices" (DL/T 475-2017), and specifies the technical requirements and testing methods for grounding characteristic heterodyne measurement devices used in power systems. This standard applies to voltage levels of 6kV to 1000kV and 40Hz to 60Hz, and four-pole method-based heterodyne grounding impedance measurement instruments and heterodyne grounding characteristic measurement devices in the production and inspection of these devices. In Chapters 5 and 6 of the standard, in addition to the requirements for the appearance, electrical safety, and functionality of the devices, the standard proposes technical requirements and specific testing methods for various factors that affect the test accuracy when measuring grounding characteristics with heterodyne test devices, such as the accuracy of measurement units such as frequency-selective voltmeters and ammeters, the influence of auxiliary electrode resistance and power supply, and the impact of interference signals from power frequency. The corresponding test types and test cycles are also specified. The standard consists of 7 chapters, and the main structure and content are as follows: - Chapter 1: "Scope", which mainly explains the purpose, main content, and scope of application of the standard. - Chapter 2: "Normative References", which lists the stan
Development Information
Related Standards
GB/T 16435.1-1996
Active
GB/T 16435.1-1996 Telecontrol equipment and systems interfaces (electrical characteristics)
GB/T 16436.1-1996
Active
GB/T 16436.1-1996 Telecontrol equipment and systems—Part 1:General considerations—Section 2 :Guide for specifications
GB/T 15149.1-2002
Active
GB/T 15149.1-2002 Teleprotection equipment of power systems—Performance and testing—Part 1:Command systems
GB/T 13729-2002
Replaced
GB/T 13729-2002 Remote terminal unit equipment
GB/T 4205-2003
Replaced