CN113595026A - Mining flame-proof type remote terminal protection system - Google Patents

Mining flame-proof type remote terminal protection system Download PDF

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Publication number
CN113595026A
CN113595026A CN202110660456.0A CN202110660456A CN113595026A CN 113595026 A CN113595026 A CN 113595026A CN 202110660456 A CN202110660456 A CN 202110660456A CN 113595026 A CN113595026 A CN 113595026A
Authority
CN
China
Prior art keywords
terminal
control transformer
protector
transformer
information
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110660456.0A
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Chinese (zh)
Inventor
尹良贵
孔德全
吴瑞清
蔡云龙
金剑
姚志远
程双
项栋梁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huainan Wantai Electric Co ltd
Original Assignee
Huainan Wantai Electric Co ltd
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 Huainan Wantai Electric Co ltd filed Critical Huainan Wantai Electric Co ltd
Priority to CN202110660456.0A priority Critical patent/CN113595026A/en
Publication of CN113595026A publication Critical patent/CN113595026A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0061Details of emergency protective circuit arrangements concerning transmission of signals
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/083Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system

Abstract

The invention discloses a mining explosion-proof type remote terminal protection system, which is used for solving the problems that the existing underground coal mine feeding and equipment use regions are far and the remote short-circuit protection cannot be realized, and comprises a terminal protector, wherein a 1 wiring terminal of the terminal protector is connected with a 1 wiring terminal of a control transformer CT1, and a 2 wiring terminal of the terminal protector is connected with a 2 wiring terminal of a control transformer CT 1; the terminal protector is arranged at the farthest end of a power supply distance, three phases 1140V or 660V are respectively connected with X1, X2 and X3 terminals, when any two-phase or three-phase cable is in short circuit, the terminal protector controls the voltage of transformers CT1, CT2 and CT3 to be reduced, after the intelligent data processing module detects the voltage change, the intelligent data processing module sends out an instruction action, the preceding-stage feed tripping operation is carried out, the remote short circuit protection function and the remote short circuit protection are achieved, signals do not depend on current, and the method can be achieved under the condition that the voltage drop of the farthest end of the cable is allowed.

Description

Mining flame-proof type remote terminal protection system
Technical Field
The invention relates to the technical field of long-distance short-circuit protection, in particular to a mine explosion-proof long-distance terminal protection system.
Background
At present, the underground coal mine feeding and equipment use regions are far, the remote short-circuit protection function cannot be realized, when the equipment runs and supplies power and has a short-circuit fault, the equipment power supply cannot normally run without a power supply, and the importance and the safety of short-circuit protection are necessary.
Disclosure of Invention
The invention aims to solve the problems that the existing underground coal mine feed and equipment are far in use area and cannot realize long-distance short-circuit protection, and provides a mining explosion-proof type long-distance terminal protection system.
The purpose of the invention can be realized by the following technical scheme: a mining explosion-proof remote terminal protection system comprises a terminal protector, wherein a terminal 1 of the terminal protector is connected with a terminal 1 of a control transformer CT1, a terminal 2 of the terminal protector is connected with a terminal 2 of a control transformer CT1, and a terminal 3 of the terminal protector is connected with a terminal 1 of a control transformer CT 2; the 4 terminal of the terminal protector is connected with the 2 terminal of the control transformer CT 2; the 5 terminal of the terminal protector is connected with the 1 terminal of the control transformer CT 3; the terminal 6 of the terminal protector is connected with the terminal 2 of the control transformer CT 3;
the 3 terminal of the control transformer CT1 is connected with the 4 terminal of the control transformer CT2 in parallel and then connected with one end of a fuse RD1, and the other end of the fuse RD1 is connected with one end of a resistor R in parallel and then connected with an X1 terminal; the other end of the resistor R is connected with one end of a relay normally-on point J1-1, the other end of the relay normally-on point J1-1 is connected with one end of a relay normally-on point J1-2, and the other end of the relay normally-on point J1-2 is grounded;
the 3 terminal of the control transformer CT2 is connected with the 4 terminal of the control transformer CT3 in parallel and then connected with one end of a fuse RD2, and the other end of the fuse RD2 is connected with an X3 terminal;
and the 3 terminal of the control transformer CT3 is connected with the 4 terminal of the control transformer CT1 in parallel and then is connected with the X2 terminal.
Preferably, the voltages corresponding to the 3 terminals of the control transformer CT1, the control transformer CT2 and the control transformer CT3 are all 660V or 1140V.
Preferably, the 7 terminal of the terminal protector is connected with one end of a relay J1, the other end of the relay J1 is connected with the 8 terminal of the terminal protector, the 9 terminal of the terminal protector is connected with one end of a short-circuit test button SY, and the other end of the short-circuit test button SY is connected with the 10 terminal of the terminal protector.
Preferably, the terminal protector is further connected to an intelligent data processing module, the intelligent data processing module is configured to detect and determine voltages of the control transformer CT1, the control transformer CT2, and the control transformer CT3, and issue a command action after the voltages of the control transformer CT1, the control transformer CT2, and the control transformer CT3 change, where the command action is used to trigger a pre-stage feeding trip.
Preferably, the terminal protector is further connected with an indicator light, and a light emitting diode is installed inside the indicator light.
Preferably, an information acquisition unit and an analysis sending unit are further installed inside the intelligent data processing module; the information acquisition unit is used for acquiring current information, indicator light information and transformer information of the input end of the terminal protector and sending the current information, the indicator light information and the transformer information to the analysis sending unit; the current information is whether the input end of the terminal protector is electrified or not, and the indicating lamp information comprises that an indicating lamp is on or off; the transformer information is whether the output end of the transformer is electrified or not;
preferably, the analysis sending unit analyzes the current information, the indicator light information and the transformer information, and the specific analysis steps are as follows:
the method comprises the following steps: when the input end of the terminal protector is electrified and the indicator light is not on, generating a light-emitting diode damage instruction;
step two: when the input end of the terminal protector is electrified, the output end of the transformer is not electrified, and a transformer damage instruction is generated;
step three: and the analysis sending unit sends the LED damage instruction and the transformer damage instruction to a computer terminal of a corresponding worker.
Compared with the prior art, the invention has the beneficial effects that: the mining explosion-proof remote terminal protection system is characterized in that a terminal protector is installed at the farthest end of a power supply distance, three phases of 1140V or 660V are respectively connected with X1, X2 and X3 terminals, when any two-phase or three-phase cable is in short circuit, the terminal protector controls the voltage of transformers CT1, CT2 and CT3 to be reduced, after the intelligent data processing module detects the voltage change, an instruction is sent to act, the preceding-stage feed tripping operation is carried out, the remote short circuit protection function is achieved, the remote short circuit protection is achieved, signals do not depend on current, and the explosion-proof remote terminal protection system can be achieved under the condition that the voltage drop of the farthest end of the cable is allowed.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the mining explosion-proof remote terminal protection system comprises a terminal protector, wherein a terminal 1 of the terminal protector is connected with a terminal 1 of a control transformer CT1, a terminal 2 of the terminal protector is connected with a terminal 2 of a control transformer CT1, and a terminal 3 of the terminal protector is connected with a terminal 1 of a control transformer CT 2; the 4 terminal of the terminal protector is connected with the 2 terminal of the control transformer CT 2; the 5 terminal of the terminal protector is connected with the 1 terminal of the control transformer CT 3; the terminal 6 of the terminal protector is connected with the terminal 2 of the control transformer CT 3;
the 3 terminal of the control transformer CT1 is connected with the 4 terminal of the control transformer CT2 in parallel and then connected with one end of a fuse RD1, and the other end of the fuse RD1 is connected with one end of a resistor R in parallel and then connected with an X1 terminal; the other end of the resistor R is connected with one end of a relay normally-on point J1-1, the other end of the relay normally-on point J1-1 is connected with one end of a relay normally-on point J1-2, and the other end of the relay normally-on point J1-2 is grounded;
the 3 terminal of the control transformer CT2 is connected with the 4 terminal of the control transformer CT3 in parallel and then connected with one end of a fuse RD2, and the other end of the fuse RD2 is connected with an X3 terminal;
the 3 terminal of the control transformer CT3 is connected with the 4 terminal of the control transformer CT1 in parallel and then is connected with the X2 terminal;
the voltages corresponding to the 3 terminals of the control transformer CT1, the control transformer CT2 and the control transformer CT3 are all 660V or 1140V;
the terminal protector comprises a terminal protector, a relay J1, a short-circuit test button SY, a relay J1, a terminal 7, a terminal 9, a terminal 10, a terminal 9, a terminal 10 and a short-circuit test button SY, wherein the terminal 7 of the terminal protector is connected with one end of the relay J1;
the terminal protector is also connected with an intelligent data processing module, the intelligent data processing module is used for detecting and judging the voltages of the control transformer CT1, the control transformer CT2 and the control transformer CT3, and when the voltages of the control transformer CT1, the control transformer CT2 and the control transformer CT3 change, the intelligent data processing module sends out an instruction action, and the instruction action is used for triggering pre-stage feeding tripping;
the terminal protector is also connected with an indicator lamp, and a light emitting diode is arranged in the indicator lamp;
an information acquisition unit and an analysis sending unit are also arranged in the intelligent data processing module; the information acquisition unit is used for acquiring current information, indicator light information and transformer information of the input end of the terminal protector and sending the current information, the indicator light information and the transformer information to the analysis sending unit; the current information is whether the input end of the terminal protector is electrified or not, and the indicating lamp information comprises that an indicating lamp is on or off; the transformer information is whether the output end of the transformer is electrified or not;
the analysis sending unit analyzes the current information, the indicator light information and the transformer information, and the specific analysis steps are as follows:
the method comprises the following steps: when the input end of the terminal protector is electrified and the indicator light is not on, generating a light-emitting diode damage instruction;
step two: when the input end of the terminal protector is electrified, the output end of the transformer is not electrified, and a transformer damage instruction is generated;
step three: the analysis sending unit sends the LED damage instruction and the transformer damage instruction to a computer terminal of a corresponding worker;
when the invention is used, the terminal protector is arranged at the farthest end of the power supply distance, three phases 1140V or 660V are respectively connected with X1, X2 and X3 terminals, when any two-phase or three-phase cable is in short circuit, the terminal protector controls the voltage of the transformers CT1, CT2 and CT3 to be reduced, after the intelligent data processing module detects the voltage change, the intelligent data processing module sends out an instruction action, the preceding-stage feed trips, a long-distance short circuit protection function is realized, the long-distance short circuit protection is realized, signals do not depend on current, and the realization can be realized under the condition that the voltage drop of the farthest end of the cable is allowed.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A mining explosion-proof remote terminal protection system comprises a terminal protector and is characterized in that a terminal 1 of the terminal protector is connected with a terminal 1 of a control transformer CT1, a terminal 2 of the terminal protector is connected with a terminal 2 of a control transformer CT1, and a terminal 3 of the terminal protector is connected with a terminal 1 of a control transformer CT 2; the 4 terminal of the terminal protector is connected with the 2 terminal of the control transformer CT 2; the 5 terminal of the terminal protector is connected with the 1 terminal of the control transformer CT 3; the terminal 6 of the terminal protector is connected with the terminal 2 of the control transformer CT 3;
the 3 terminal of the control transformer CT1 is connected with the 4 terminal of the control transformer CT2 in parallel and then connected with one end of a fuse RD1, and the other end of the fuse RD1 is connected with one end of a resistor R in parallel and then connected with an X1 terminal; the other end of the resistor R is connected with one end of a relay normally-on point J1-1, the other end of the relay normally-on point J1-1 is connected with one end of a relay normally-on point J1-2, and the other end of the relay normally-on point J1-2 is grounded;
the 3 terminal of the control transformer CT2 is connected with the 4 terminal of the control transformer CT3 in parallel and then connected with one end of a fuse RD2, and the other end of the fuse RD2 is connected with an X3 terminal;
and the 3 terminal of the control transformer CT3 is connected with the 4 terminal of the control transformer CT1 in parallel and then is connected with the X2 terminal.
2. The mining flameproof remote terminal protection system according to claim 1, wherein the voltages corresponding to the 3 terminals of the control transformer CT1, the control transformer CT2 and the control transformer CT3 are all 660V or 1140V.
3. The mining explosion-proof remote terminal protection system according to claim 1, wherein a 7 terminal of the terminal protector is connected with one end of a relay J1, the other end of the relay J1 is connected with an 8 terminal of the terminal protector, a 9 terminal of the terminal protector is connected with one end of a short-circuit test button SY, and the other end of the short-circuit test button SY is connected with a 10 terminal of the terminal protector.
4. The mining explosion-proof remote terminal protection system according to claim 1, wherein the terminal protector is further connected with an intelligent data processing module, the intelligent data processing module is used for detecting and judging the voltages of the control transformer CT1, the control transformer CT2 and the control transformer CT3, and when the voltages of the control transformer CT1, the control transformer CT2 and the control transformer CT3 change, an instruction action is sent out, and the instruction action is used for triggering pre-stage feeding tripping.
5. The mining flameproof remote terminal protection system according to claim 4, wherein the terminal protector is further connected with an indicator light, and a light emitting diode is installed inside the indicator light.
6. The mining explosion-proof remote terminal protection system according to claim 5, wherein an information acquisition unit and an analysis sending unit are further installed inside the intelligent data processing module; the information acquisition unit is used for acquiring current information, indicator light information and transformer information of the input end of the terminal protector and sending the current information, the indicator light information and the transformer information to the analysis sending unit; the current information is whether the input end of the terminal protector is electrified or not, and the indicating lamp information comprises that an indicating lamp is on or off; the transformer information is whether the output end of the transformer is electrified or not;
the analysis sending unit analyzes the current information, the indicator light information and the transformer information, and the specific analysis steps are as follows:
the method comprises the following steps: when the input end of the terminal protector is electrified and the indicator light is not on, generating a light-emitting diode damage instruction;
step two: when the input end of the terminal protector is electrified, the output end of the transformer is not electrified, and a transformer damage instruction is generated;
step three: and the analysis sending unit sends the LED damage instruction and the transformer damage instruction to a computer terminal of a corresponding worker.
CN202110660456.0A 2021-06-15 2021-06-15 Mining flame-proof type remote terminal protection system Pending CN113595026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110660456.0A CN113595026A (en) 2021-06-15 2021-06-15 Mining flame-proof type remote terminal protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110660456.0A CN113595026A (en) 2021-06-15 2021-06-15 Mining flame-proof type remote terminal protection system

Publications (1)

Publication Number Publication Date
CN113595026A true CN113595026A (en) 2021-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110660456.0A Pending CN113595026A (en) 2021-06-15 2021-06-15 Mining flame-proof type remote terminal protection system

Country Status (1)

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CN (1) CN113595026A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202183893U (en) * 2011-06-08 2012-04-04 淮南万泰荣博照明科技有限公司 Intelligent and comprehensive explosion-suppression-type protecting device of carrier wave illumination
CN104022492A (en) * 2014-06-03 2014-09-03 太原理工大学 Auxiliary short circuit protection device for low-voltage power supply device of long-distance mine laneway

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202183893U (en) * 2011-06-08 2012-04-04 淮南万泰荣博照明科技有限公司 Intelligent and comprehensive explosion-suppression-type protecting device of carrier wave illumination
CN104022492A (en) * 2014-06-03 2014-09-03 太原理工大学 Auxiliary short circuit protection device for low-voltage power supply device of long-distance mine laneway

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