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GB/T 36050-2018 English PDF (GBT36050-2018)

GB/T 36050-2018 English PDF (GBT36050-2018)

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GB/T 36050-2018: Rules of time synchronization for power systems

This Standard specifies the terms and definitions, general rules, construction requirements, operation management specifications for the time synchronization system for power systems. This Standard applies to the planning, design, construction and operation management of the time synchronization system for power systems dispatchers, transformer substations, power generation plants and power systems on the users side.
GB/T 36050-2018
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 29.240.01
F 20
Rules of time synchronization for power systems
ISSUED ON. MARCH 15, 2018
IMPLEMENTED ON. OCTOBER 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Abbreviations ... 5
5 General rules ... 5
6 Construction requirements ... 6
7 Operation management specifications ... 6
Rules of time synchronization for power systems
1 Scope
This Standard specifies the terms and definitions, general rules, construction requirements, operation management specifications for the time synchronization system for power systems.
This Standard applies to the planning, design, construction and operation management of the time synchronization system for power systems?€? dispatchers, transformer substations, power generation plants and power systems on the users?€? side.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this document.
DL/T 1100.1, Time synchronism systems of power system ?€? Part 1. Technical specifications
Provisions on the security protection of the electric power monitoring systems (Order no. 14 of the National Development and Reform Commission)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 3.1
time synchronization system for power system
System which provides standard time signals for all kinds of application systems and equipment of power systems.
NOTE. The time synchronization system for power systems consists of clock source, master clock, slave clock, transmission medium and so on.
3.2
5.6 The devices in the time synchronization system for power systems shall have the time synchronization state monitoring management function.
5.7 The time synchronization system for power systems shall be as required by the Provisions on the security protection of the electric power monitoring systems. 6 Construction requirements
6.1 Dispatchers shall be equipped with a unified time synchronization system; the master clock is of a duplicated redundancy configuration; the NTP method is preferably used for the time synchronization of all application systems and equipment of dispatchers.
6.2 Transformer substations shall be equipped with a unified time synchronization system; the master clock is of a duplicated redundancy configuration. The equipment of station level is preferably synchronized using the NTP method; the equipment of bay level and process level is synchronized using IRIG-B codes or PTP messages, preferably IRIG-B codes.
6.3 Power generation plants shall be equipped with a unified time synchronization system; the master clock is of a duplicated redundancy configuration. The background of production control system is preferably synchronized using the NTP method; the equipment such as measurement-control and protection shall be synchronized using IRIG-B codes or PTP messages, preferably IRIG-B codes.
6.4 The power users?€? side shall be provided with the time synchronization function in relevant equipment in accordance with the technical requirements for time synchronization for power use, electric power measurement and so on.
7 Operation management specifications
7.1 Basic requirements
The operation management of the synchronization system for power systems shall follow the principles of unified management and hierarchical maintenance. All dispatchers, transformer substations, power generation plants and users shall carry out the operation and maintenance of the time synchronization system based on the principle requirements and actual conditions on site.
7.2 Dispatchers
The basic requirements for the time synchronization system management of dispatchers at all levels are as follows.

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