WO2011059350A1 - Circuit breaker protection and diagnostics system - Google Patents

Circuit breaker protection and diagnostics system Download PDF

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Publication number
WO2011059350A1
WO2011059350A1 PCT/PL2010/000115 PL2010000115W WO2011059350A1 WO 2011059350 A1 WO2011059350 A1 WO 2011059350A1 PL 2010000115 W PL2010000115 W PL 2010000115W WO 2011059350 A1 WO2011059350 A1 WO 2011059350A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
output
input
circuit breaker
electrical signals
Prior art date
Application number
PCT/PL2010/000115
Other languages
French (fr)
Inventor
Aleksander Lisowiec
Andrzej Nowakowski
Zdzislaw KOŁODZIEJCZYK
Original Assignee
Instytut Tele-I Radiotechniczny
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instytut Tele-I Radiotechniczny filed Critical Instytut Tele-I Radiotechniczny
Priority to RU2012124037/07A priority Critical patent/RU2012124037A/en
Publication of WO2011059350A1 publication Critical patent/WO2011059350A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/14—Protecting elements, switches, relays or circuit breakers

Definitions

  • the subject of the invention is the breaker protection and diagnostics system intended for protection purposes in a medium voltage switchgear and performing the diagnostics function of a medium voltage circuit breaker on the basis of signals available during operation.
  • the systems providing the protection functionality in a medium voltage switchgear are known, such as REF 541, REF 542, REF 543.
  • Such systems comprise the electrical signals acquisition module connected to the signal parameterization system, the output of which in turn is connected to the protections module, the output of which is connected to the decision module and the transmission module.
  • these systems implement the protective automation algorithms, but are unable to perform the circuit breaker analysis based on the signals, such as phase currents or voltages during normal operation.
  • circuit breaker diagnostics There are also specialized modules acquiring signals from the circuit breaker during normal operation in order to provide circuit breaker diagnostics.
  • Such systems comprising the electrical signals acquisition module connected to the decision module and the transmission module, have been described, amongst others, by M. Kezunovic, Z. Ren, G. Latisko, D. R. Sevcik, S. Lucey, W.E. Cook, E.A. Koch, Automated Monitoring and Analysis of Circuit Breaker Operation, IEEE Transactions on Power Delivery, Vol. 20, Issue 3.
  • circuit breaker diagnostics systems comprising the electrical signals acquisition module connected to the signal parameterization system connected to the decision module. With these systems, the diagnostics operation can be performed only when the circuit breaker is disconnected from the power line because the special test signals are used for diagnostics.
  • An example of these devices is TM1800 from General Electric.
  • the circuit breaker protection and diagnostics system includes the non-electrical signals acquisition module, the input of which is connected to the circuit breaker's non-electric signals sensor; one output is connected to the comparator module and the other one to the transmission module, the output of which is connected to the system output.
  • the other comparator module input is connected to the non-electric diagnostics signals reference standard module.
  • One of the comparator module outputs is connected to the decision module, the output of which is connected to the circuit breaker control system.
  • the other comparator module output is connected to the transmission module, the second input of which is connected to the output of the electrical signals acquisition module, and the third one is connected to the output of the protection module.
  • the second output of the protection module is connected to the input of the decision module, and the input is connected to the output of the signals parameterization module to the input of which connected is the second output of the electrical signals acquisition module.
  • Outputs of the voltage transformers are connected to the voltage inputs of the electrical signals acquisition module.
  • Outputs of the current transformers are connected to the current inputs, and the circuit breaker binary signals are sent to the binary inputs.
  • the electrical signals acquisition module converts analogue signals related to the circuit breaker into sequences of digital samples and prepares the records comprising the digital samples and binary signals. These records are sent to the transmission module which in turn sends them out, for example to the master system. Samples of voltage and current signals are sent to the signals parameterization module where the basic parameters of voltage and current signals are determined, such as Fourier spectrum, RMS values, mains frequency, and then the determined values are sent to the protection module which implements the protective automation functions. The protection module sends the information about the protections status to the decision module.
  • the non-electrical signals acquisition module converts the non-electrical diagnostic signals (i.e. infrared and visible spectrum emitted by heated contacts) to digital format which is sent to the comparator module where it is compared with the digital reference standard of non-electrical diagnostic signals stored in the diagnostics signals reference standard module.
  • the advantage of the system lies in the fact that it performs the protective automation functions and diagnostics of medium voltage circuit breaker on the basic of the same samples of electrical signals available from the circuit breaker and additionally widens the circuit breaker diagnostics to include the non-electrical signals by comparing them with a digital reference standard.
  • the system comprises the electrical signals acquisition module ESAM, to voltage inputs U3 of which connected are the outputs of voltage transformers TU, to the current inputs U2 the outputs of current transformers TI are connected, and to the binary inputs U4 the binary signals WDW of the circuit breaker CB are connected.
  • One of the outputs of the electrical signals acquisition module ESAM is connected to one of the inputs of the transmission module TM, and the second output is connected to the signals parameterization module SPM, the output of which is connected to the protection module PM.
  • One of the outputs of the protection module PM is connected to the transmission module TM, and the other one to the decision module DM, the output of which is connected to the output U5 of the system, and this output is in turn connected to the control system CS of the circuit breaker CB.
  • the output of the transmission module TM is connected to the output U6 of the system.
  • the input of the non-electrical signals acquisition module NESAM is connected to the input Ul, to which connected is the non-electrical signals sensor NSS of the circuit breaker CB.
  • One of the outputs of the non-electrical signals acquisition module NESAM is connected to the transmission module TM, and the other to the comparator module CM, the second output of which is connected to the output of the non-electric diagnostics signals reference standard module NDSRSM.
  • One of the outputs of the comparator module is connected to the transmission module TM, and the other one to the decision module DM.

Abstract

The circuit breaker protection and diagnostics system comprising the electrical signals acquisition module, transmission module, parameterization module and decision module characterized in that it includes the non-electrical signals acquisition module (NESAM), the input (U1) of which is connected to the non-electrical signals sensor of the circuit breaker (CB), one output is connected to the comparator module (CM), and the other one to the transmission module (TM) which is connected to the output of the system (U6), wherein the second input of the comparator module (CM) is connected to the non-electric diagnostics signals reference standard module (NDSRSM), one of the outputs of the comparator module (CM) is connected to the decision module (DM), the output (U5) of which is connected to the circuit breaker control system (CS), and the second output of the comparator module (CM) is connected to the transmission module (TM), the second input of which is connected to the output of the electrical signals acquisition module (ESAM), and the third input is connected to the output of the protection module (PM). The second output of which is connected to the input of the decision module (DM), and the input is connected to the output of the signals parameterization module (SPM), to the input of which connected is the second output of the electrical signals acquisition module (ESAM), and to the voltage inputs (U3) of the electrical signals acquisition module (ESAM) connected are the outputs of voltage transformers (TU), to the current inputs (U2) connected are the outputs of current transformers (TI), and the binary inputs (U4) receive the binary signals (WDW) of the circuit breaker (CB).

Description

Circuit breaker protection and diagnostics system
The subject of the invention is the breaker protection and diagnostics system intended for protection purposes in a medium voltage switchgear and performing the diagnostics function of a medium voltage circuit breaker on the basis of signals available during operation.
The systems providing the protection functionality in a medium voltage switchgear are known, such as REF 541, REF 542, REF 543. Such systems comprise the electrical signals acquisition module connected to the signal parameterization system, the output of which in turn is connected to the protections module, the output of which is connected to the decision module and the transmission module. On the basis of current and voltage measurements in a three-phase line, these systems implement the protective automation algorithms, but are unable to perform the circuit breaker analysis based on the signals, such as phase currents or voltages during normal operation.
There are also specialized modules acquiring signals from the circuit breaker during normal operation in order to provide circuit breaker diagnostics. Such systems, comprising the electrical signals acquisition module connected to the decision module and the transmission module, have been described, amongst others, by M. Kezunovic, Z. Ren, G. Latisko, D. R. Sevcik, S. Lucey, W.E. Cook, E.A. Koch, Automated Monitoring and Analysis of Circuit Breaker Operation, IEEE Transactions on Power Delivery, Vol. 20, Issue 3. These systems, on the other hand, are unable to implement the protection algorithms in the switchgear. There are also specialized circuit breaker diagnostics systems comprising the electrical signals acquisition module connected to the signal parameterization system connected to the decision module. With these systems, the diagnostics operation can be performed only when the circuit breaker is disconnected from the power line because the special test signals are used for diagnostics. An example of these devices is TM1800 from General Electric.
According to the invention, the circuit breaker protection and diagnostics system includes the non-electrical signals acquisition module, the input of which is connected to the circuit breaker's non-electric signals sensor; one output is connected to the comparator module and the other one to the transmission module, the output of which is connected to the system output. The other comparator module input is connected to the non-electric diagnostics signals reference standard module. One of the comparator module outputs is connected to the decision module, the output of which is connected to the circuit breaker control system. The other comparator module output is connected to the transmission module, the second input of which is connected to the output of the electrical signals acquisition module, and the third one is connected to the output of the protection module. The second output of the protection module is connected to the input of the decision module, and the input is connected to the output of the signals parameterization module to the input of which connected is the second output of the electrical signals acquisition module. Outputs of the voltage transformers are connected to the voltage inputs of the electrical signals acquisition module. Outputs of the current transformers are connected to the current inputs, and the circuit breaker binary signals are sent to the binary inputs.
The electrical signals acquisition module converts analogue signals related to the circuit breaker into sequences of digital samples and prepares the records comprising the digital samples and binary signals. These records are sent to the transmission module which in turn sends them out, for example to the master system. Samples of voltage and current signals are sent to the signals parameterization module where the basic parameters of voltage and current signals are determined, such as Fourier spectrum, RMS values, mains frequency, and then the determined values are sent to the protection module which implements the protective automation functions. The protection module sends the information about the protections status to the decision module. The non-electrical signals acquisition module converts the non-electrical diagnostic signals (i.e. infrared and visible spectrum emitted by heated contacts) to digital format which is sent to the comparator module where it is compared with the digital reference standard of non-electrical diagnostic signals stored in the diagnostics signals reference standard module.
The advantage of the system lies in the fact that it performs the protective automation functions and diagnostics of medium voltage circuit breaker on the basic of the same samples of electrical signals available from the circuit breaker and additionally widens the circuit breaker diagnostics to include the non-electrical signals by comparing them with a digital reference standard.
Example
According to the invention, the system comprises the electrical signals acquisition module ESAM, to voltage inputs U3 of which connected are the outputs of voltage transformers TU, to the current inputs U2 the outputs of current transformers TI are connected, and to the binary inputs U4 the binary signals WDW of the circuit breaker CB are connected. One of the outputs of the electrical signals acquisition module ESAM is connected to one of the inputs of the transmission module TM, and the second output is connected to the signals parameterization module SPM, the output of which is connected to the protection module PM. One of the outputs of the protection module PM is connected to the transmission module TM, and the other one to the decision module DM, the output of which is connected to the output U5 of the system, and this output is in turn connected to the control system CS of the circuit breaker CB. The output of the transmission module TM is connected to the output U6 of the system. The input of the non-electrical signals acquisition module NESAM is connected to the input Ul, to which connected is the non-electrical signals sensor NSS of the circuit breaker CB. One of the outputs of the non-electrical signals acquisition module NESAM is connected to the transmission module TM, and the other to the comparator module CM, the second output of which is connected to the output of the non-electric diagnostics signals reference standard module NDSRSM. One of the outputs of the comparator module is connected to the transmission module TM, and the other one to the decision module DM.

Claims

Patent claim
1. The circuit breaker protection and diagnostics system comprising the electrical signals acquisition module, transmission module, parameterization module and decision module characterized in that it includes the non-electrical signals acquisition module (NESAM), the input (Ul) of which is connected to the nonelectrical signals sensor of the circuit breaker (CB), one output is connected to the comparator module (CM"), and the other one to the transmission module (TM) which is connected to the output of the system (U6), wherein the second input of the comparator module (CM) is connected to the non-electric diagnostics signals reference standard module (NDSRSM), one of the outputs of the comparator module (CM) is connected to the decision module (DM), the output (U5) of which is connected to the circuit breaker control system (CS), and the second output of the comparator module (CM) is connected to the transmission module (TM), the second input of which is connected to the output of the electrical signals acquisition module (ESAM), and the third input is connected to the output of the protection module (PM), the second output of which is connected to the input of the decision module (DM), and the input is connected to the output of the signals parameterization module (SPM), to the input of which connected is the second output of the electrical signals acquisition module (ESAM), and to the voltage inputs (U3) of the electrical signals acquisition module (ESAM) connected are the outputs of voltage transformers (TU), to the current inputs (U2) connected are the outputs of current transformers (TP, and the binary inputs (U4) receive the binary signals (WDW) of the circuit breaker (CB).
PCT/PL2010/000115 2009-11-12 2010-11-09 Circuit breaker protection and diagnostics system WO2011059350A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2012124037/07A RU2012124037A (en) 2009-11-12 2010-11-09 PROTECTION AND DIAGNOSTIC SYSTEM OF THE CIRCUIT BREAKER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL389546A PL214584B1 (en) 2009-11-12 2009-11-12 System for switch security and diagnostics
PLP389546 2009-11-12

Publications (1)

Publication Number Publication Date
WO2011059350A1 true WO2011059350A1 (en) 2011-05-19

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Application Number Title Priority Date Filing Date
PCT/PL2010/000115 WO2011059350A1 (en) 2009-11-12 2010-11-09 Circuit breaker protection and diagnostics system

Country Status (3)

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PL (1) PL214584B1 (en)
RU (1) RU2012124037A (en)
WO (1) WO2011059350A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983044A (en) * 2011-09-05 2013-03-20 施耐德电器工业公司 Electrification state indicating device of circuit breaker and circuit breaker with same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112525228A (en) * 2020-11-27 2021-03-19 科华恒盛股份有限公司 Hall circuit and Hall sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6845301B2 (en) * 2001-02-09 2005-01-18 Kabushiki Kaisha Toshiba System for protecting and controlling substation main circuit components

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6845301B2 (en) * 2001-02-09 2005-01-18 Kabushiki Kaisha Toshiba System for protecting and controlling substation main circuit components

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. KEZUNOVIC; Z. REN; G. LATISKO; D. R. SEVCIK; S. LUCEY; W.E. COOK; E.A. KOCH: "Automated Monitoring and Analysis of Circuit Breaker Operation", IEEE TRANSACTIONS ON POWER DELIVERY, vol. 20, no. 3

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983044A (en) * 2011-09-05 2013-03-20 施耐德电器工业公司 Electrification state indicating device of circuit breaker and circuit breaker with same

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Publication number Publication date
PL214584B1 (en) 2013-08-30
RU2012124037A (en) 2013-12-20
PL389546A1 (en) 2011-05-23

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