CN104377828A - Uniform adjusting method for protective function of breaker - Google Patents

Uniform adjusting method for protective function of breaker Download PDF

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Publication number
CN104377828A
CN104377828A CN201410675335.3A CN201410675335A CN104377828A CN 104377828 A CN104377828 A CN 104377828A CN 201410675335 A CN201410675335 A CN 201410675335A CN 104377828 A CN104377828 A CN 104377828A
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CN
China
Prior art keywords
information
breaker
normal
circuit breaker
sequence
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CN201410675335.3A
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Chinese (zh)
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CN104377828B (en
Inventor
孟祥博
李云陟
赵阳
袁泉
张文立
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State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
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Priority to CN201410675335.3A priority Critical patent/CN104377828B/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations

Abstract

A uniform adjusting method for the protective function of a breaker includes the steps that reflected measured and control information and protective action information are set sequentially with the whole process that the breaker trips off when subjected to a transient fault and then a protective device starts the coincidence function as a reference, wherein the sequence is the normal sequence; a current and voltage test stand is used for simulating the environment in which the breaker is subjected to the transient fault, the information reflected by the breaker is sent by a monitor device and the protective device and transmitted to a monitor computer through the in-station network, and the monitor computer records the sequence of the reflected information; if the sequence, recorded by the monitor computer, of the reflected information is coincident with the normal sequence, it is considered that the breaker meets the power supply condition and can supply power; when the sequence, recorded by the monitor computer, of the reflected information is different from the normal sequence, the sequence of the reflected information and the normal sequence are compared to judge which device in a station is abnormal. The uniform adjusting method can carry out monitoring comprehensively and can position faults rapidly and accurately, and great convenience is brought to dispatching staff.

Description

The complete adjustment method of breaker protection function
Technical field
The present invention relates to the complete adjustment method of a kind of breaker protection function.
Background technology
For in transformer station, circuit breaker is primary equipment, and it is arranged between Generation Side and electricity consumption side, is the visual plant for control circuit transmission or not, is generally arranged on open air; Secondary device refers to the relevant parameter (electric current and voltage) when being energized by monitoring breaker; the equipment of automatic tripping circuit breaker under reaching situations such as passing by stream or short circuit online; mainly comprise measure and control device and protective device, be generally arranged in the master-control room of transformer station.
Circuit breaker because of the information (observing and controlling information and protection act information) reflected during fault trip be the important evidence that power system dispatching personnel carry out accident analysis, observing and controlling information spinner will comprise switch separating brake information, switch combined floodgate information and control loop template information, and protection act information spinner will comprise overcurrent tripping information, short circuit tripping operation information and reclosing information; Inaccurate or incorrect circuit breaker failure information can cause dispatcher to judge by accident, sends false command, causes wider power outage.
In transformer station, protection act information sends message by protective device, then by Internet Transmission to the supervisory control comuter in transformer station; Switch divides, close a floodgate and the information such as control loop template sends message by measure and control device, is transferred to network in station and re-sends to the supervisory control comuter in transformer station.
Adjustment method in the past: the debugging carrying out separately the functions such as the separating brake of circuit breaker, combined floodgate, protection act, reclosing, control loop template.
This kind of adjustment method can not judge the sequence of movement of various information in circuit breaker trip process.Particularly in transformer station under GPS correction device abnormal conditions; during the Time Inconsistency of the measure and control device in transformer station and protective device; the various information sequence error of breaker actuation process can be caused; cause dispatcher to judge by accident when accident analysis, when this situation trips in many line-breaker short time in transformer station, the impact of accident analysis is carried out on dispatcher the most serious simultaneously.
Summary of the invention
The present invention is the problems referred to above that will solve prior art existence, provides a kind of breaker protection function complete adjustment method.
Technical solution of the present invention is:
The complete adjustment method of breaker protection function, its special character is:
1, by protection act information and switch separating brake information through logical "and" door, composite signal name is called " this circuit breaker is responsible for circuit and is had an accident ";
2, set the switch separating brake information of circuit breaker, switch combined floodgate information and control loop template information to be sent by measure and control device; Setting overcurrent tripping information, short circuit tripping operation information and reclosing action message are sent by protective device;
3, by circuit breaker by open position to closing position or by closing position to the transient state in the middle of open position, namely neither also control loop template state is not defined as in the state of closing position at open position, when circuit breaker is in this state, information that measure and control device sends " control loop template ";
4, run into transient fault tripping with circuit breaker and start the whole process of coincidence function as a reference by protective device again, formulate the observing and controlling information that reflects and protection act information sequentially, this order is normal sequence: this circuit breaker is responsible for that circuit has an accident, protection act, switch separating brake, control loop template, reclosing action, switch combined floodgate;
5, the environment of above-mentioned transient fault is run into electric current voltage analog testing stand mimic-disconnecting switch, the information that circuit breaker reflects is sent by measure and control device and protective device, by standing, interior network is transferred to supervisory control comuter, and the tandem of the information reflected by supervisory control comuter record;
If the tandem of 6 information reflected by supervisory control comuter record is consistent with normal sequence, think that circuit breaker possesses power transmission condition, can power transmission be carried out; When difference, the tandem of the information reflected and normal sequence are compared;
If 7 lack " this circuit breaker is responsible for circuit and is had an accident " information, then check the synthesis condition of supervisory control of substation computer;
If 8 lack " protection act " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
If 9 lack " switch separating brake " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
If 10 lack " control loop template " information, then by field maintenance person check transformer station's inner breaker whether in normal and transformer station the corresponding function of measure and control device be enough normal;
If 11 lack " reclosing action " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
If 12 lack " switch combined floodgate " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
If the information order reflected in 13 breaker actuation processes is inconsistent with normal sequence, then checked the time whether strict conformance of measure and control device and protective device in transformer station by field maintenance person, when checking the school in transformer station, whether equipment is working properly;
If in 14 whole processes, information is identical with normal sequence without disappearance, then illustrate that circuit-breaker status is normal, meets power transmission condition.
The invention has the beneficial effects as follows: the present invention comprises the full detail that circuit breaker may occur under accident substantially, monitoring comprehensively, fault location can be carried out rapidly, and accurate positioning, can utilize existing current/voltage simulator stand, without the need to other equipment investment, great convenience is brought to dispatcher, dispatcher is enable accurately to grasp circuit abnormal information in the state of accident, and correct process in time, reduce the loss of supply.
Accompanying drawing explanation
Fig. 1 is system diagram of the present invention.
Embodiment
The complete adjustment method of this breaker protection function, its key step is:
1, run into transient fault tripping with circuit breaker and start the whole process of coincidence function as a reference by protective device again, formulate the observing and controlling information that reflects and protection act information sequentially, this order is normal sequence (see table 1): this circuit breaker is responsible for that circuit has an accident, protection act, switch separating brake, control loop template, reclosing action, switch combined floodgate;
2, the environment of above-mentioned transient fault is run into electric current voltage test platform mimic-disconnecting switch, the information that circuit breaker reflects is sent by measure and control device and protective device, by standing, interior network is transferred to supervisory control comuter, and the tandem of the information reflected by supervisory control comuter record;
If the tandem of 3 information reflected by supervisory control comuter record is consistent with normal sequence, think that circuit breaker possesses power transmission condition, can power transmission be carried out; When difference, the tandem of the information reflected and normal sequence are compared, judge in station, which device is abnormal.
Table 1
Sequentially Title
1 This circuit breaker is responsible for circuit and is had an accident
2 Protection act
3 Switch separating brake
4 Control loop template
5 Reclosing action
6 Switch closes a floodgate
Concrete steps are as follows:
1, by protection act information and switch separating brake information through logical "and" door, composite signal name is called " this circuit breaker is responsible for circuit and is had an accident ";
2, set the switch separating brake information of circuit breaker, switch combined floodgate information and control loop template information to be sent by measure and control device; Setting overcurrent tripping information, short circuit tripping operation information and reclosing action message are sent by protective device;
3, by circuit breaker by open position to closing position or by closing position to the transient state in the middle of open position, namely neither also control loop template state is not defined as in the state of closing position at open position, when circuit breaker is in this state, information that measure and control device sends " control loop template ";
4, run into transient fault tripping with circuit breaker and start the whole process of coincidence function as a reference by protective device again, formulate the observing and controlling information that reflects and protection act information sequentially, this order is normal sequence: this circuit breaker is responsible for that circuit has an accident, protection act, switch separating brake, control loop template, reclosing action, switch combined floodgate;
5, the environment of above-mentioned transient fault is run into electric current voltage analog testing stand mimic-disconnecting switch, the information that circuit breaker reflects is sent by measure and control device and protective device, by standing, interior network is transferred to supervisory control comuter, and the tandem of the information reflected by supervisory control comuter record;
If the tandem of 6 information reflected by supervisory control comuter record is consistent with normal sequence, think that circuit breaker possesses power transmission condition, can power transmission be carried out; When difference, the tandem of the information reflected and normal sequence are compared;
If 7 lack " this circuit breaker is responsible for circuit and is had an accident " information, then check the synthesis condition of supervisory control of substation computer;
If 8 lack " protection act " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
If 9 lack " switch separating brake " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
If 10 lack " control loop template " information, then by field maintenance person check transformer station's inner breaker whether in normal and transformer station the corresponding function of measure and control device be enough normal;
If 11 lack " reclosing action " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
If 12 lack " switch combined floodgate " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
If the information order reflected in 13 breaker actuation processes is inconsistent with normal sequence, then checked the time whether strict conformance of measure and control device and protective device in transformer station by field maintenance person, when checking the school in transformer station, whether equipment is working properly;
14, if in whole process, information is identical with normal sequence without disappearance, then illustrate that circuit-breaker status is normal, meets power transmission condition.

Claims (1)

1. the complete adjustment method of breaker protection function, is characterized in that:
1), by protection act information and switch separating brake information through logical "and" door, composite signal name is called " this circuit breaker is responsible for circuit and is had an accident ";
2), set the switch separating brake information of circuit breaker, switch combined floodgate information and control loop template information to be sent by measure and control device; Setting overcurrent tripping information, short circuit tripping operation information and reclosing action message are sent by protective device;
3), by circuit breaker by open position to closing position or by closing position to the transient state in the middle of open position, namely neither also control loop template state is not defined as in the state of closing position at open position, when circuit breaker is in this state, information that measure and control device sends " control loop template ";
4), run into transient fault tripping with circuit breaker and start the whole process of coincidence function as a reference by protective device again, formulate the observing and controlling information that reflects and protection act information sequentially, this order is normal sequence: this circuit breaker is responsible for that circuit has an accident, protection act, switch separating brake, control loop template, reclosing action, switch combined floodgate;
5) environment of above-mentioned transient fault, is run into electric current voltage analog testing stand mimic-disconnecting switch, the information that circuit breaker reflects is sent by measure and control device and protective device, by standing, interior network is transferred to supervisory control comuter, and the tandem of the information reflected by supervisory control comuter record;
6) if the tandem of the information reflected by supervisory control comuter record is consistent with normal sequence, think that circuit breaker possesses power transmission condition, can power transmission be carried out; When difference, the tandem of the information reflected and normal sequence are compared;
7) if lack " this circuit breaker is responsible for circuit and is had an accident " information, then the synthesis condition of supervisory control of substation computer is checked;
8) if lack " protection act " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
9) if lack " switch separating brake " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
10) if lack " control loop template " information, then by field maintenance person check transformer station's inner breaker whether in normal and transformer station the corresponding function of measure and control device be enough normal;
11) if lack " reclosing action " information, then check that whether the corresponding function of protective device in transformer station is normal by field maintenance person;
12) if lack " switch combined floodgate " information, then check that whether the corresponding function of measure and control device in transformer station is normal by field maintenance person, check that whether circuit breaker is in relevant position;
13) if the information order reflected in breaker actuation process is inconsistent with normal sequence, then checked the time whether strict conformance of measure and control device and protective device in transformer station by field maintenance person, when checking the school in transformer station, whether equipment is working properly;
14) if in whole process, information is identical with normal sequence without disappearance, then illustrate that circuit-breaker status is normal, meets power transmission condition.
CN201410675335.3A 2014-11-24 2014-11-24 The complete adjustment method of breaker protection function Active CN104377828B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875090B1 (en) * 1996-01-19 1999-06-16 Siemens Aktiengesellschaft Connector, in particular a plug-in connector for tt and tn networks
CN201893540U (en) * 2010-11-26 2011-07-06 南宁华供电力科技有限公司 Intelligent radio network dispatching digital-type boundary controller complete equipment
CN102279325A (en) * 2011-04-19 2011-12-14 中国电力科学研究院 Ultra high voltage direct current (UHVDC) transmission engineering station system debugging method
CN102412624A (en) * 2011-11-08 2012-04-11 湖北省电力公司电力试验研究院 Virtual monitoring method for transformer substation sequence control
JP5119503B2 (en) * 2010-02-25 2013-01-16 Necシステムテクノロジー株式会社 Power supply system, power supply method, and program
CN104037762A (en) * 2014-06-28 2014-09-10 国家电网公司 Distribution line section switch control method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0875090B1 (en) * 1996-01-19 1999-06-16 Siemens Aktiengesellschaft Connector, in particular a plug-in connector for tt and tn networks
JP5119503B2 (en) * 2010-02-25 2013-01-16 Necシステムテクノロジー株式会社 Power supply system, power supply method, and program
CN201893540U (en) * 2010-11-26 2011-07-06 南宁华供电力科技有限公司 Intelligent radio network dispatching digital-type boundary controller complete equipment
CN102279325A (en) * 2011-04-19 2011-12-14 中国电力科学研究院 Ultra high voltage direct current (UHVDC) transmission engineering station system debugging method
CN102412624A (en) * 2011-11-08 2012-04-11 湖北省电力公司电力试验研究院 Virtual monitoring method for transformer substation sequence control
CN104037762A (en) * 2014-06-28 2014-09-10 国家电网公司 Distribution line section switch control method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孟祥博: "变电站监控系统调试方法的改进研究", 《中国高新技术企业》 *

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