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GB/T 32576-2016: Guide of calculating settings of auxiliary power relay protection for pumped storage power plant
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Guide of calculating settings of auxiliary power relay protection for pumped storage power plant
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GB/T 32576-2016
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Basic data | Standard ID | GB/T 32576-2016 (GB/T32576-2016) | | Description (Translated English) | Guide of calculating settings of auxiliary power relay protection for pumped storage power plant | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P62 | | Classification of International Standard | 27.100 | | Word Count Estimation | 29,285 | | Date of Issue | 2016-04-25 | | Date of Implementation | 2016-11-01 | | Regulation (derived from) | National Standard Announcement No | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 32576-2016: Guide of calculating settings of auxiliary power relay protection for pumped storage power plant
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Guide of calculation settings for auxiliary power relay protection for pumped storage power plant
ICS 27.100
P62
National Standards of People's Republic of China
Setting Calculation of Stationary Relay Protection for Pumped Storage Power Station
Guidelines
2016-04-25 released
2016-11-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
Basic Provisions 1
4 Set the calculation condition 2
5 Set the calculation principle 2
Protection of high - voltage factory transformer 2
5.2 low-voltage factory transformer protection 8
5.3 High voltage motor protection 12
5.4 high and low voltage bus protection 16
5.5 DIESEL GENERATOR PROTECTION 18
5.6 SFC Input and Output Transformer Protection 19
5.7 Standby power automatic input device 24
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents.
This standard is proposed by the China Electricity Council and centralized.
The main drafting unit of this standard. State Grid New Source Holdings Limited, Liaoning Pu Shihe Pumped Storage Company Limited.
The main drafters of this standard. Gao Sujie, Zhang Yewu, Wu Yi, Pan Ligang, Li Jianguang, Hao Guowen, Zhang Yonghui, Wang Ning, Bi Yang, Chang Yuhong,
Yibao Bao, Luan Deyan, Wu Peizhi, Luo Yin, Song Haifeng, Liang Tingting, Liu Jiabao, Yu Xiaoyan.
Setting Calculation of Stationary Relay Protection for Pumped Storage Power Station
Guidelines
1 Scope
This standard specifies the principle and method of setting the relay protection for the auxiliary power system of the pumped storage power station.
This standard applies to pumped storage power station high-voltage transformer transformer protection, low-voltage transformer transformer protection, high-voltage factory motor protection, high
Low voltage plant bus protection, diesel generator protection, SFC input and output transformer protection, standby power supply automatic device setting
Calculation.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Technical specification for relay protection and safety automatic device GB/T 14285
GB/T 15544.1 Calculation of short circuit currents for three phase AC systems - Part 1. Current calculation
Guide for calculation of short - circuit current in three - phase AC system for hydropower engineering
Code for design of relay protection for NB/T 35010 hydroelectric power plant
3 Basic Provisions
3.1 relay protection device should meet the reliability, selectivity, speed, sensitivity of the basic requirements.
3.2 The setting calculation should follow the principle of action value and action time level.
3.3 set the calculation content should include high-voltage factory transformer high and low voltage side, low-voltage transformer transformer high and low voltage side, SFC input transformer level
Pressure side, SFC output transformer high and low voltage side of the three-phase short circuit, two-phase short circuit, single-phase ground short-circuit current calculation.
3.4 factory power short-circuit current calculation principle.
a) Follow the instructions in accordance with GB/T 15544.1, NB/T 35043.
b) Excluding the resistance components in the impedance parameters such as generators, transformers, motors and so on; it can be assumed that the negative sequence impedance of the generator
Positive sequence impedance is equal.
c) The positive sequence impedance of the generator motor may be the saturation value of the secondary transient reactance Xd ".
d) The equivalent electromotive force (nominal value) of each generator motor can be assumed to be 1 and the phase is consistent.
e) only calculate the short-circuit transient current in the periodic component, but in the longitudinal differential protection device (referred to as longitudinal protection) in the setting calculation to
The nonperiodic component coefficient Kap takes into account the influence of the aperiodic component.
f) The generator voltage should be rated voltage, the system side voltage can be rated voltage or the average rated voltage, regardless of
Variation of Actual Position of Transformer Voltage Tap.
g) The phase-to-earth transition resistance excluding the point of failure.
3.5 The setting of the relay protection related to the operating mode shall be calculated in the normal operation mode, in the minimum mode of operation
Check sensitivity.
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