CN112185054A - Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system - Google Patents
Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system Download PDFInfo
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- CN112185054A CN112185054A CN202011062465.1A CN202011062465A CN112185054A CN 112185054 A CN112185054 A CN 112185054A CN 202011062465 A CN202011062465 A CN 202011062465A CN 112185054 A CN112185054 A CN 112185054A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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Abstract
The invention discloses a cable layer water-inlet damp fire and cable discharge alarm system of a substation protection chamber, which comprises a background machine, a switch, a detection box and a field detection box, wherein the background machine is connected with the switch; the detection box comprises an electric cat, a water immersion monitoring sensor, a temperature sensor, a humidity sensor, a smoke sensor, an arc light protection module and a monitoring module. When the detection box is far away from the background machine and the switch, the switch with an optical port can be selected or directly connected by adopting an optical cable, a tail fiber and the like; when the investment is limited, a common electric light port exchanger or an optical-electric converter is adopted for switching; when distance is exchanged, the network cable arrangement can be directly adopted; the invention comprises water immersion monitoring, temperature and humidity detection, fire detection and arc light protection, and transmits sensor data to a monitoring system of a main control room, finds faults in time, processes the faults as soon as possible, can monitor all related detection boxes uniformly, and can monitor and take effective measures on a cable layer of a protection small room.
Description
Technical Field
The invention belongs to the technical field of substation accident alarm systems, and particularly relates to a substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The transformer substation in the power plant is a boosting transformer substation, and is used for boosting electric energy generated by a generator and then feeding the electric energy into a high-voltage power grid, the electric equipment in the transformer substation is divided into primary equipment and secondary equipment, the primary equipment refers to equipment for directly producing, conveying, distributing and using the electric energy, and mainly comprises a transformer, a high-voltage circuit breaker, an isolating switch, a bus, a lightning arrester, a capacitor, a reactor and the like; the secondary equipment of the transformer substation is equipment for measuring, monitoring, controlling and protecting the operation conditions of primary equipment and a system, and mainly comprises a relay protection device, an automatic device, a measurement and control device, a metering device, an automatic system and direct current equipment for providing power for the secondary equipment.
Based on the requirements of the general rule of south China network on creation value and innovation development, the lean idea of waste elimination, creation value elimination, continuous improvement and lean refinement is implemented, the investment of the operation elements is arranged with the value maximization as the target, all the waste loss of each link of the value chain is eliminated, the core competitiveness of an enterprise is improved, and the sustainable development of the enterprise is promoted.
In the existing transformer substation adopting protection lowering, cables led out from primary equipment such as a main transformer, a high-impedance, series compensation, a switch, a disconnecting link, a CT (computed tomography) and a CVT (continuously variable transmission) are pulled to a protection small chamber and are connected to a protection and measurement and control system through the protection small chamber. The cable layer is in the lower floor of protection cell, it is comparatively difficult to the supervision of its state, because receive the influence of moisture, temperature, the cable easily wets, when the temperature is too high even takes place the accident such as water logging or conflagration, arc discharge, because of finding time is slower, easily cause great accident, current protection cell cable layer only has generally been installed smoke and has been reported to the police and insert fire alarm system, lacks the monitoring in other aspects, for this reason we propose transformer substation protection cell cable layer intake and wet conflagration and cable discharge alarm system and solve the problem that exists among the prior art.
Disclosure of Invention
The invention aims to provide a system for alarming a cable layer of a protection small chamber of a transformer substation to be subjected to water inflow and damp and for alarming cable discharge, sensor data are transmitted to a monitoring system of a main control chamber through integrating water immersion monitoring, temperature and humidity detection, fire detection and arc light protection, faults are found in time and processed as soon as possible, all relevant detection boxes can be monitored in a unified mode, the cable layer of the protection small chamber can be monitored, and effective measures can be taken, so that the problems in the prior art in the background art are solved.
In order to achieve the purpose, the invention adopts the following technical scheme: a cable layer water inflow and damp fire and cable discharge alarm system of a substation protection chamber comprises a background machine, a switch, a detection box and a field detection box;
the detection box comprises an electric cat, a water immersion monitoring sensor, a temperature sensor, a humidity sensor, a smoke sensor, an arc light protection module and a monitoring module;
the water immersion monitoring sensor is arranged on a cable layer of the substation protection chamber;
the temperature sensor and the humidity sensor are used for detecting a temperature value and a humidity value of the detection box and transmitting a humidity value and a temperature value signal of the detection box to the monitoring module;
the smoke sensor is used for detecting the smoke condition in the protection chamber and outputting a signal to the monitoring module;
the arc protection module detects the cable discharge condition of the cable layer of the protection cell by detecting the arc and the overcurrent of the cable layer of the protection cell and outputs a signal to the monitoring module;
the on-site detection box comprises a dual-power switching system and an electric modem, the dual-power switching system, the electric modem and the detection box are electrically connected, the detection box is interconnected with a background machine and the on-site detection box through an exchanger, and the interconnection mode between the detection box and the exchanger comprises an optical cable, a tail fiber, a photoelectric converter and a network cable;
still include database module and monitoring module, the backstage machine is used for keeping watch on the state of detection case, and the backstage machine receives the water logging monitoring sensor of detection case, temperature sensor, humidity transducer, smoke transducer and the signal of arc light protection module transmission to go into database module with its signal storage, and export to monitoring module, the backstage machine still carries out the network butt joint with the controller of detection case simultaneously, makes the controller of each terminal case carry out synchronous and detecting system's environment simultaneously.
Preferably, the detection box is provided with at least three groups, the communication end of the monitoring module is connected with the detection box in an online signal manner and is monitored, the field state value of the signal box is obtained, and when the field state value of one or more detection boxes of the terminal boxes is abnormal, the unified online accurate monitoring and monitoring of the detection boxes are realized.
Preferably, the temperature sensor and the humidity sensor are integrated temperature and humidity sensors.
Preferably, the method for setting the water immersion monitoring sensor comprises the following steps: a pit for placing a submersible pump is dug in a cable layer of the small protection chamber, a floating ball is arranged in the pit, and when the cable layer is flooded by water, a contact point of the floating ball is communicated and outputs a signal to a monitoring system through a detection box.
Preferably, the submersible pump is used for draining water in the protection chamber to the outside of the protection chamber, and the length, width and height of the deep pit are 0.45-0.55 m.
Preferably, the arc light protection module comprises an arc light acquisition unit and a main control unit, the arc light protection module adopts two non-associated parameters of detection arc light and current as criteria, and the arc light acquisition unit is matched with the main control unit for acquiring fault arc light and transmitting the result after the determination to the main control unit through an optical signal.
Preferably, the arc light acquisition unit adopts an SAQE arc light sensor, has insensitivity to daily light, effectively avoids the interference of other lights except electric arc light, and outputs a detection result signal to a monitoring system.
Preferably, the power supply of the on-site detection box is a dual-power supply unit consisting of a first power supply and a second power supply.
The invention has the technical effects and advantages that: compared with the prior art, the cable layer water inflow and damp fire and cable discharge alarm system for the protection cubicle of the transformer substation, provided by the invention, has the following advantages:
when the detection box is far away from the background machine and the switch, the switch with an optical port can be selected or directly connected by adopting an optical cable, a tail fiber and the like; when the investment is limited, a common electric light port exchanger or an optical-electric converter is adopted for switching; when distance is exchanged, the network cable arrangement can be directly adopted;
the invention comprises water immersion monitoring, temperature and humidity detection, fire detection and arc light protection, and transmits sensor data to a monitoring system of a main control room, finds faults in time, processes the faults as soon as possible, can monitor all related detection boxes uniformly, and can monitor and take effective measures on a cable layer of a protection small room.
Drawings
FIG. 1 is a block diagram of a system for alarming the water-entering and damp fire and cable discharge in the cable layer of the protection cubicle of the power station;
FIG. 2 is a schematic diagram of a system architecture of a cable layer water-in and damp fire and cable discharge alarm system of a power station protection cell according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.
The invention provides a system for alarming a cable layer of a protection cubicle of a transformer substation to water inflow and damp fire and cable discharge, which is shown in figures 1 and 2 and comprises a background machine, a switch, a detection box and a field detection box;
the detection box comprises an electric cat, a water immersion monitoring sensor, a temperature sensor, a humidity sensor, a smoke sensor, an arc light protection module and a monitoring module;
the water immersion monitoring sensor is arranged on a cable layer of the substation protection chamber;
the temperature sensor and the humidity sensor are used for detecting the temperature value and the humidity value of the detection box and transmitting the humidity value and the temperature value signal of the detection box to the monitoring module;
the smoke sensor is used for detecting the smoke condition in the protection chamber and outputting a signal to the monitoring module;
the arc light protection module detects the cable discharge condition of the cable layer of the protection cell by detecting arc light and overcurrent of the cable layer of the protection cell and outputs signals to the monitoring module;
the field detection box comprises a dual-power switching system and an electric modem, the dual-power switching system, the electric modem and the detection box are electrically connected, the detection box is interconnected with the background machine and the field detection box through an exchanger, and the interconnection mode between the detection box and the exchanger comprises an optical cable, a tail fiber, a photoelectric converter and a network cable;
still include database module and monitoring module, the backstage machine is used for keeping watch on the state of detection case, the water logging monitoring sensor of detection case is received to the backstage machine, temperature sensor, humidity transducer, smoke transducer and the signal of arc light protection module transmission, and go into database module with its signal storage, and export to monitoring module, the backstage machine still carries out the network butt joint with the controller of detection case simultaneously, make the controller of each terminal case carry out synchronous and detecting system's environment simultaneously.
The system comprises water immersion monitoring, temperature and humidity detection, fire detection and arc light protection, sensor data are transmitted to a monitoring system of a main control room, faults are found in time and processed as soon as possible, all relevant detection boxes can be monitored in a unified mode, and cable layers of small protection chambers can be monitored and effective measures can be taken.
When the detection box is far away from the background machine and the switch, the switch with an optical port can be selected or directly connected by adopting an optical cable, a tail fiber and the like; when the investment is limited, a common electric light port exchanger or an optical-electric converter is adopted for switching; the network cable arrangement can be directly adopted when distance is exchanged.
The detection boxes are provided with at least three groups, the communication end of the monitoring module is in online signal connection monitoring with the at least three groups of detection boxes to obtain the field state values of the signal boxes, and when the field state values of one or more detection boxes of the plurality of terminal boxes are abnormal, unified online accurate monitoring and monitoring of the plurality of detection boxes are achieved.
The temperature sensor and the humidity sensor are integrated temperature and humidity sensors.
The setting method of the water immersion monitoring sensor comprises the following steps: a pit for placing a submersible pump is dug in a cable layer of the protection chamber, a floating ball is arranged in the pit, when the cable layer is flooded by water, a contact point of the floating ball is communicated and outputs a signal to a monitoring system through a detection box, the submersible pump is used for discharging water in the protection chamber to the outside of the protection chamber, and the length, the width and the height of the pit are 0.45-0.55 m.
The arc light protection module comprises an arc light acquisition unit and a main control unit, the arc light protection module adopts two non-associated parameters of detection arc light and current as criteria, the arc light acquisition unit is matched with the main control unit for use, and is used for acquiring fault arc light and transmitting the result after the determination to the main control unit through an optical signal.
The arc light collection unit adopts SAQE arc light sensor, has insensitivity to the ordinary light, then effectively avoids the interference of other lights except electric arc light, with testing result signal output to monitored control system, the power supply of on-the-spot detection case sets up to the dual power supply unit that power one and power two constitute.
In summary, when the detection box is far away from the background machine and the switch, the switch with the optical port can be selected or directly connected by adopting an optical cable, a tail fiber and the like; when the investment is limited, a common electric light port exchanger or an optical-electric converter is adopted for switching; when distance is exchanged, the network cable arrangement can be directly adopted;
the invention comprises water immersion monitoring, temperature and humidity detection, fire detection and arc light protection, and transmits sensor data to a monitoring system of a main control room, finds faults in time, processes the faults as soon as possible, can monitor all related detection boxes uniformly, and can monitor and take effective measures on a cable layer of a protection small room.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. Protection cell cable layer of transformer substation intakes damp conflagration and cable discharge alarm system, including back end machine, switch, detection case and on-the-spot detection case, its characterized in that:
the detection box comprises an electric cat, a water immersion monitoring sensor, a temperature sensor, a humidity sensor, a smoke sensor, an arc light protection module and a monitoring module;
the water immersion monitoring sensor is arranged on a cable layer of the substation protection chamber;
the temperature sensor and the humidity sensor are used for detecting a temperature value and a humidity value of the detection box and transmitting a humidity value and a temperature value signal of the detection box to the monitoring module;
the smoke sensor is used for detecting the smoke condition in the protection chamber and outputting a signal to the monitoring module;
the arc protection module detects the cable discharge condition of the cable layer of the protection cell by detecting the arc and the overcurrent of the cable layer of the protection cell and outputs a signal to the monitoring module;
the on-site detection box comprises a dual-power switching system and an electric modem, the dual-power switching system, the electric modem and the detection box are electrically connected, the detection box is interconnected with a background machine and the on-site detection box through an exchanger, and the interconnection mode between the detection box and the exchanger comprises an optical cable, a tail fiber, a photoelectric converter and a network cable;
still include database module and monitoring module, the backstage machine is used for keeping watch on the state of detection case, and the backstage machine receives the water logging monitoring sensor of detection case, temperature sensor, humidity transducer, smoke transducer and the signal of arc light protection module transmission to go into database module with its signal storage, and export to monitoring module, the backstage machine still carries out the network butt joint with the controller of detection case simultaneously, makes the controller of each terminal case carry out synchronous and detecting system's environment simultaneously.
2. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 1, characterized in that: the detection box is provided with at least three groups, the communication end of the monitoring module is connected with the at least three groups of detection boxes through on-line signals for monitoring, the on-site state value of the signal box is obtained, and when the on-site state value of one or more detection boxes of the terminal boxes is abnormal, unified on-line accurate monitoring and control of the detection boxes are achieved.
3. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 1, characterized in that: the temperature sensor and the humidity sensor are set to be integrated temperature and humidity sensors.
4. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 1, characterized in that: the setting method of the water immersion monitoring sensor comprises the following steps: a pit for placing a submersible pump is dug in a cable layer of the small protection chamber, a floating ball is arranged in the pit, and when the cable layer is flooded by water, a contact point of the floating ball is communicated and outputs a signal to a monitoring system through a detection box.
5. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 4, characterized in that: the submersible pump is used for discharging water in the protection chamber to the outside of the protection chamber, and the length, width and height of the deep pit are 0.45-0.55 m.
6. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 1, characterized in that: the arc light protection module comprises an arc light acquisition unit and a main control unit, the arc light protection module adopts two non-associated parameters of detection arc light and current as criteria, and the arc light acquisition unit is matched with the main control unit for acquiring fault arc light and transmitting the result after the determination to the main control unit through an optical signal.
7. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 6, characterized in that: the arc light acquisition unit adopts an SAQE arc light sensor, has insensitivity to daily light, effectively avoids the interference of other lights except electric arc light, and outputs a detection result signal to a monitoring system.
8. The substation protection cubicle cable layer water inlet damp fire and cable discharge alarm system according to claim 1, characterized in that: the power supply of the on-site detection box is a dual-power supply unit consisting of a power supply I and a power supply II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062465.1A CN112185054A (en) | 2020-09-30 | 2020-09-30 | Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062465.1A CN112185054A (en) | 2020-09-30 | 2020-09-30 | Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system |
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| CN112185054A true CN112185054A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011062465.1A Pending CN112185054A (en) | 2020-09-30 | 2020-09-30 | Cable layer of protection cabinet of transformer substation is intake and is affected by tide conflagration and cable discharge alarm system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710935A (en) * | 2021-03-29 | 2021-04-27 | 华东交通大学 | Power wire and cable protective layer ablation condition pre-alarming system and method |
| CN113625797A (en) * | 2021-08-13 | 2021-11-09 | 国网河北省电力有限公司检修分公司 | Automatic warning device for water inlet or damp of terminal box of transformer substation |
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| CN205530592U (en) * | 2016-04-21 | 2016-08-31 | 安徽意力电缆有限公司 | Cable tunnel automatic water discharging device |
| CN210742535U (en) * | 2019-11-07 | 2020-06-12 | 中国南方电网有限责任公司超高压输电公司梧州局 | Terminal box microclimate monitoring system |
| CN111696305A (en) * | 2020-06-03 | 2020-09-22 | 国网山西省电力公司阳泉供电公司 | Fire safety monitoring system of transformer substation |
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2020
- 2020-09-30 CN CN202011062465.1A patent/CN112185054A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120025994A1 (en) * | 2010-07-30 | 2012-02-02 | Robert Bruce Morris | Environmental alarm sensor panel and related method for a telecommunication cable station |
| CN104377665A (en) * | 2014-11-22 | 2015-02-25 | 安徽国电京润电力科技有限公司 | Arc light protective device |
| CN205530592U (en) * | 2016-04-21 | 2016-08-31 | 安徽意力电缆有限公司 | Cable tunnel automatic water discharging device |
| CN210742535U (en) * | 2019-11-07 | 2020-06-12 | 中国南方电网有限责任公司超高压输电公司梧州局 | Terminal box microclimate monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710935A (en) * | 2021-03-29 | 2021-04-27 | 华东交通大学 | Power wire and cable protective layer ablation condition pre-alarming system and method |
| CN112710935B (en) * | 2021-03-29 | 2021-06-25 | 吉安诺惠诚莘科技有限公司 | Power wire and cable protective layer ablation condition pre-alarming system and method |
| CN113625797A (en) * | 2021-08-13 | 2021-11-09 | 国网河北省电力有限公司检修分公司 | Automatic warning device for water inlet or damp of terminal box of transformer substation |
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Application publication date: 20210105 |