CN102611081A - Intelligent monitoring system of switch of branch circuit - Google Patents

Intelligent monitoring system of switch of branch circuit Download PDF

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Publication number
CN102611081A
CN102611081A CN2012101188273A CN201210118827A CN102611081A CN 102611081 A CN102611081 A CN 102611081A CN 2012101188273 A CN2012101188273 A CN 2012101188273A CN 201210118827 A CN201210118827 A CN 201210118827A CN 102611081 A CN102611081 A CN 102611081A
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CN
China
Prior art keywords
control module
signal
circuit breaker
control
analog
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Pending
Application number
CN2012101188273A
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Chinese (zh)
Inventor
李惠蓬
裴胜军
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JIANGSU DECHUN POWER ELECTRIC CO Ltd
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JIANGSU DECHUN POWER ELECTRIC CO Ltd
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Application filed by JIANGSU DECHUN POWER ELECTRIC CO Ltd filed Critical JIANGSU DECHUN POWER ELECTRIC CO Ltd
Priority to CN2012101188273A priority Critical patent/CN102611081A/en
Publication of CN102611081A publication Critical patent/CN102611081A/en
Pending legal-status Critical Current

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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
    • Y04S10/20Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention belongs to the field of a circuit breaker control system, and in particular relates to an intelligent monitoring system of a switch of a branch circuit. The intelligent monitoring system comprises a circuit breaker and a controller, wherein the circuit breaker is arranged on the branch circuit and comprises a current transformer and an analog to digital converter, the current transformer and the analog to digital converter are connected with the controller, the controller is used for controlling the circuit breaker to be switched off and on and comprises a control module, the current transformer transmits a detected current signal to the analog to digital converter, the analog to digital converter is used for converting the current signal into a digital signal and transmitting the digital signal to the control module of the controller, and the control module compares the digital signal with a preset original signal and controls the circuit breaker to be switched on and off. The intelligent monitoring system disclosed by the invention has the advantages of carrying out real time monitoring on the current of the branch circuit in a switch cabinet, preventing the switch cabinet and a current main circuit from being damaged due to overlarge current of the branch circuit, being capable of realizing automatically switching off and manually controlling the circuit breaker to switch off, improving the safety of the switch cabinet and prolonging the service life.

Description

Branch circuit switch intelligent monitor system
Technical field
The invention belongs to circuit-breaker control system field, specifically is a kind of branch circuit switch intelligent monitor system.
Background technology
Switch cubicle is a kind of electric equipment, and outside line is introduced into master switch in the cabinet, gets into then to divide the control switch, and each needs to be provided with by it along separate routes.Like instrument, automatic control, the motor magnetic switch, various A.C. contactors etc., what have also establishes hyperbaric chamber and low-pressure chamber switch cubicle, is provided with high voltage bus, and like the power plant etc., what have also is provided with to protecting the low-frequency load reduction of capital equipment.
The current loading of branch line is provided with main line and some branch lines of electric current in the general switch cubicle, owing to can cause the damage of switch cubicle when excessive.
Summary of the invention
The problem that the present invention will solve is the size of current of real-time pilot switch cabinet electric current branch line, and when load is excessive, breaks off a line current, the invention provides branch circuit switch intelligent monitor system.
The invention provides following technical scheme:
Branch circuit switch intelligent monitor system; It comprises circuit breaker that is installed on the branch circuit and the controller of controlling the circuit breaker folding; Circuit breaker comprises current transformer and analog to digital converter; Current transformer, analog to digital converter are connected with controller, and controller comprises control module, and current transformer passes to analog to digital converter with the current signal of monitoring; Analog to digital converter converts current signal to digital signal transfers and gives the control module in the controller, and control module compares the primary signal of digital signal and setting the folding of back control circuit breaker.
Described controller also comprises wireless communication module, and wireless communication module is transmitted to the wireless telecommunications receiving terminal with the control signal of control module.
Be duplex communication between described wireless telecommunications receiving terminal and the controller.
Described current transformer is three one zero sequence current mutual inductors.
The control method of branch circuit switch intelligent monitor system, it comprises:
A, control module are set the step of initial value;
The step of b, current transformer monitoring current signal;
C, analog to digital converter become analog signal conversion the step of digital signal;
The step of d, control module comparative figures signal and initial value size;
E, when digital signal is bigger than initial value, the step of control module control circuit breaker;
Control module is set the initial value of current signal safety; Current transformer passes to analog to digital converter after monitoring current signal, and analog to digital converter converts current signal to digital signal, gives control module with this digital signal transfers then; Control module compares this digital signal and initial value; When digital signal during greater than initial value, show that then electric current is excessive, control module control circuit breaker carries out open circuit; When digital signal was less than or equal to initial value, then control module was controlled circuit breaker path all the time.
It comprises that also control module control wireless communication module transmits to the step of wireless telecommunications receiving terminal, when control module control circuit breaker carries out open circuit, passes to the wireless telecommunications receiving terminal with this control signal.
It also comprises the step of wireless telecommunications receiving terminal emissioning controling signal to control module, and this wireless telecommunications receiving terminal transmits to the folding of control module with the control circuit breaker.
Advantage of the present invention is to monitor in real time the electric current of branch circuit in the switch cubicle; Prevent excessive damage switch-box of branch current and electric current main road; Can realize automatic disconnection and Artificial Control cut-off breaker, the fail safe that has improved switch cubicle has prolonged useful life.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a control block diagram of the present invention.
Embodiment
Like Fig. 1, shown in Figure 2; Branch circuit switch intelligent monitor system; It comprises the controller 5 that is installed in the electric current circuit breaker on the branch circuit 23 and control circuit breaker 3 foldings in road 1, and circuit breaker 3 comprises current transformer and analog to digital converter 4, and current transformer, analog to digital converter are connected with controller 5; Controller 5 comprises control module 6; Current transformer passes to analog to digital converter with the current signal of monitoring, and analog to digital converter converts current signal to digital signal transfers and gives the control module in the controller, and control module compares the primary signal of digital signal and setting the folding of back control circuit breaker.
Wherein, controller 5 also comprises wireless communication module 7, and wireless communication module 7 is transmitted to the wireless telecommunications receiving terminal with the control signal of control module 6; Prompting is overhauled; Treat that circuit closes and have no progeny that wireless communication module transmission information is given patrol's mobile phone, notifies the patrol to go inspection to safeguard.
Wherein, be duplex communication between wireless telecommunications receiving terminal and the controller 5, so the wireless telecommunications receiving terminal can be accepted the control signal of control module; Also can emissioning controling signal be controlled by control module, circuit breaker is broken off, thereby overhaul and safeguard; Be duplex communication between patrol and the control cabinet, the patrol also can directly turn-off circuit breaker (also being in order initiatively to limit branch current) through mobile phone transmission information through control cabinet, and the wireless telecommunications receiving terminal is a mobile phone usually; Mobile phone is 1 master 9 times; When accepting, ten numbers can both be received, but have only a major number can manually control the shutoff circuit breaker.
Wherein, current transformer is three one zero sequence current mutual inductors.
The control method of branch circuit switch intelligent monitor system, it comprises:
A, control module are set the step of initial value;
The step of b, current transformer monitoring current signal;
C, analog to digital converter become analog signal conversion the step of digital signal;
The step of d, control module comparative figures signal and initial value size;
E, when digital signal is bigger than initial value, the step of control module control circuit breaker;
Control module is set the initial value of current signal safety; Current transformer passes to analog to digital converter after monitoring current signal, and analog to digital converter converts current signal to digital signal, gives control module with this digital signal transfers then; Control module compares this digital signal and initial value; When digital signal during greater than initial value, show that then electric current is excessive, control module control circuit breaker carries out open circuit; When digital signal was less than or equal to initial value, then control module was controlled circuit breaker path all the time.
It comprises that also control module control wireless communication module transmits to the step of wireless telecommunications receiving terminal, when control module control circuit breaker carries out open circuit, passes to the wireless telecommunications receiving terminal with this control signal.
It also comprises the step of wireless telecommunications receiving terminal emissioning controling signal to control module, and this wireless telecommunications receiving terminal transmits to the folding of control module with the control circuit breaker.

Claims (7)

1. branch circuit switch intelligent monitor system; It comprises circuit breaker that is installed on the branch circuit and the controller of controlling the circuit breaker folding; Circuit breaker comprises current transformer and analog to digital converter; Current transformer, analog to digital converter are connected with controller, and controller comprises control module, and current transformer passes to analog to digital converter with the current signal of monitoring; Analog to digital converter converts current signal to digital signal transfers and gives the control module in the controller, and control module compares the primary signal of digital signal and setting the folding of back control circuit breaker.
2. branch circuit switch intelligent monitor system according to claim 1, it is characterized in that: described controller also comprises wireless communication module, wireless communication module is transmitted to the wireless telecommunications receiving terminal with the control signal of control module.
3. branch circuit switch intelligent monitor system according to claim 2 is characterized in that: be duplex communication between described wireless telecommunications receiving terminal and the controller.
4. branch circuit switch intelligent monitor system according to claim 1 and 2 is characterized in that: described current transformer is three one zero sequence current mutual inductors.
5. according to the control method of any described branch circuit switch intelligent monitor system of claim 1-4, it comprises:
A, control module are set the step of initial value;
The step of b, current transformer monitoring current signal;
C, analog to digital converter become analog signal conversion the step of digital signal;
The step of d, control module comparative figures signal and initial value size;
E, when digital signal is bigger than initial value, the step of control module control circuit breaker;
Control module is set the initial value of current signal safety; Current transformer passes to analog to digital converter after monitoring current signal, and analog to digital converter converts current signal to digital signal, gives control module with this digital signal transfers then; Control module compares this digital signal and initial value; When digital signal during greater than initial value, show that then electric current is excessive, control module control circuit breaker carries out open circuit; When digital signal was less than or equal to initial value, then control module was controlled circuit breaker path all the time.
6. the control method of according to claim 5 contactor intelligent monitor system; It is characterized in that: it comprises that also control module control wireless communication module transmits to the step of wireless telecommunications receiving terminal; When control module control circuit breaker carries out open circuit, this control signal is passed to the wireless telecommunications receiving terminal.
7. according to the control method of claim 5 or 6 described contactor intelligent monitor systems; It is characterized in that: it also comprises the step of wireless telecommunications receiving terminal emissioning controling signal to control module, and this wireless telecommunications receiving terminal transmits to the folding of control module with the control circuit breaker.
CN2012101188273A 2012-04-23 2012-04-23 Intelligent monitoring system of switch of branch circuit Pending CN102611081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101188273A CN102611081A (en) 2012-04-23 2012-04-23 Intelligent monitoring system of switch of branch circuit

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Application Number Priority Date Filing Date Title
CN2012101188273A CN102611081A (en) 2012-04-23 2012-04-23 Intelligent monitoring system of switch of branch circuit

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CN102611081A true CN102611081A (en) 2012-07-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103474970A (en) * 2013-09-04 2013-12-25 上海雷翱电子科技有限公司 Current monitor applied to medium-low-voltage power distribution system
CN103545920A (en) * 2013-09-24 2014-01-29 池州市华强高低压电器成套设备有限公司 Protecting and controlling method for power distribution box
WO2021007880A1 (en) * 2019-07-18 2021-01-21 山东光韵智能科技有限公司 Intelligent restart system for wireless terminal of high-voltage switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070070565A1 (en) * 2005-09-07 2007-03-29 Schweitzer Engineering Laboratories, Inc. System, apparatus and method for compensating the sensitivity of a sequence element in a line current differential relay in a power system
CN201118280Y (en) * 2007-08-24 2008-09-17 郭黎 Low-voltage electric network automatic monitoring system
CN102255278A (en) * 2011-07-01 2011-11-23 河北工业大学 Comprehensive leakage protector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070070565A1 (en) * 2005-09-07 2007-03-29 Schweitzer Engineering Laboratories, Inc. System, apparatus and method for compensating the sensitivity of a sequence element in a line current differential relay in a power system
CN201118280Y (en) * 2007-08-24 2008-09-17 郭黎 Low-voltage electric network automatic monitoring system
CN102255278A (en) * 2011-07-01 2011-11-23 河北工业大学 Comprehensive leakage protector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103474970A (en) * 2013-09-04 2013-12-25 上海雷翱电子科技有限公司 Current monitor applied to medium-low-voltage power distribution system
CN103545920A (en) * 2013-09-24 2014-01-29 池州市华强高低压电器成套设备有限公司 Protecting and controlling method for power distribution box
WO2021007880A1 (en) * 2019-07-18 2021-01-21 山东光韵智能科技有限公司 Intelligent restart system for wireless terminal of high-voltage switch

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Application publication date: 20120725