CN211239452U

CN211239452U - Auxiliary monitoring device for transformer substation

Info

Publication number: CN211239452U
Application number: CN202020147426.0U
Authority: CN
Inventors: 牟小平; 薛永廷; 范丽
Original assignee: Hydropower Plant Of Changqing Petroleum Exploration Bureau Co ltd
Current assignee: Hydropower Plant Of Changqing Petroleum Exploration Bureau Co ltd
Priority date: 2020-01-26
Filing date: 2020-01-26
Publication date: 2020-08-11
Anticipated expiration: 2030-01-26

Abstract

The utility model discloses a transformer substation assists monitoring device belongs to an intelligent data acquisition and processing system, and the device is including openly dual supply switching controller, touch-sensitive screen, multi-functional coulomb meter, intelligent circuit breaker, manual circuit breaker, operation pilot lamp, manual start button, manual stop button and manual automatic transfer switch who sets up, still including dual supply switching switch body, binding post row, PLC, master controller, power module, relay, ac contactor and the hourglass water accuse that the back set up. The utility model provides a transformer substation assists monitoring device has advantages such as programmability is strong, the real-time is complete, the integrated level is high, and the device has changed the mode of traditional transformer substation auxiliary assembly management, uses to assist the control screen and carries out auxiliary assembly's concentrated remote control, has realized local and long-range both-way switching, has reached the transformer substation unmanned on duty administrative requirement, great reduction the transformer substation operation cost.

Description

Auxiliary monitoring device for transformer substation

Technical Field

The utility model belongs to a transformer substation assists monitoring device belongs to an intelligent data acquisition and processing system.

Background

With the development of the internet of things technology and the communication technology, the data management and operation monitoring modes of the traditional transformer substation are in urgent need of upgrading and updating so as to realize intelligent unified management. The management mode of the existing hydropower plant governed substation for auxiliary equipment is loose, each component is independently controlled, data management is complex, and individual equipment needs field manual operation control, for example: operation and control of a water pump of the water collecting well and the like. Meanwhile, the monitoring of the cable trench is in a blank state. How to design an auxiliary monitoring device of a transformer substation to realize centralized control and management of equipment is a technical problem and a hotspot in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a transformer substation assists monitoring device has advantages such as programmability is strong, the real-time is full, the integrated level is high, and the device has changed the mode of traditional transformer substation auxiliary assembly management, uses and assists the control screen and carry out auxiliary assembly's concentrated remote control, has realized local and long-range two-way switching, has reached transformer substation unmanned on duty management requirement, great reduction transformer substation's operation cost.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides a supplementary monitoring device of transformer substation includes openly dual supply switching controller, touch-sensitive screen, multi-functional coulomb meter, intelligent circuit breaker, manual circuit breaker, operation pilot lamp, manual start button, manual stop button and manual automatic change over switch that sets up, still includes dual supply switching switch body, binding post row, PLC, master controller, power module, relay, ac contactor and the accuse of leaking water that the back set up, wherein: the main controller is respectively connected with the touch screen, the PLC, the dual-power switching controller, the multifunctional electricity meter, the intelligent circuit breaker and the wiring terminal row through communication cables, the dual-power switching controller is connected with the dual-power switching switch body through a cable, and the main controller is connected with the external sensor and the regulation and control equipment through the wiring terminal row; the intelligent circuit breaker and the manual circuit breaker are respectively arranged between the power supply and the wiring terminal row, the intelligent circuit breaker or the manual circuit breaker is controlled to work through a manual automatic change-over switch, the intelligent circuit breaker is controlled by the main controller, and the manual circuit breaker is controlled by a manual start button and a manual stop button; the operation indicator lamp is used for displaying the working states of the intelligent circuit breaker and the manual circuit breaker, and when a circuit corresponding to the indicator lamp is conducted, the indicator lamp is lightened; the input end of the power supply module is connected with the alternating current contactor, and the output end of the power supply module is provided with a relay; the water leakage controller is arranged on the alternating current contactor.

Preferably, the dual power supply switching controller is of a D type, the dual power supply switching switch body is of a CB level, and the dual power supply switching switch body is provided with a circuit breaker of an overcurrent release.

Preferably, the master controller comprises an ARMContexM3 series industrial grade controller.

Preferably, the PLC is an S7-200smart type programmable controller.

Preferably, the touch screen adopts a 24V direct current power supply and RS232 serial port communication mode.

Preferably, the multifunctional electricity meter is used for collecting three-phase voltage, current, active power, reactive power, power factor, grid frequency, active electric energy and reactive electric energy, and is provided with a communication interface and two paths of electric energy pulses for completing electric quantity measurement, electric energy calculation, data display, collection and transmission.

The utility model discloses a transformer substation assists monitoring device has following beneficial effect:

1) programmability: the device adopts the programmable master controller, realizes that the system acquisition programming logic is adjusted through a simple configuration file, flexibly realizes the simplification processing of a complex process, and greatly improves the applicability of the system.

2) The real-time performance is strong: the system collects data in real time, the frequency of the displayed data is 1 second, meanwhile, the system controls the operation, the delay operation is less than or equal to 3 seconds, and the data is obtained.

3) The integration level is high: the system can cover a plurality of peripheral devices and facilities, solves the problem that the control devices such as the traditional alternating current screen and the like only aim at power supply control, and integrates the centralized management of various peripheral devices such as searchlights, electric heaters, air conditioners, lighting, water pumps, ventilators and the like.

4) The expandability is strong: the system is provided with a plurality of reserved power supply control links aiming at power supply equipment, and can be used for butt joint of communication equipment with 4-20mA signals of equipment with Modbus communication and can be completed by configuring parameters of a master controller.

5) The reliability is high: the system adopts the high-reliability component equipment and components and mature sensor equipment to acquire data, and forms a very stable working state after long-term operation and fusion.

Drawings

Fig. 1 is a schematic front structural view of the present invention;

fig. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic diagram of the circuit connection of the present invention;

fig. 4 is a schematic view of an embodiment of the present invention.

In the figure, the intelligent water leakage control device comprises a 1-double power supply switching controller, a 2-touch screen, a 3-multi-kinetic energy watt-hour meter, a 4-intelligent circuit breaker, a 5-manual circuit breaker, a 6-running indicator light, a 7-manual starting button, an 8-manual stopping button, a 9-manual automatic switching switch, a 10-double power supply switching switch body, an 11-wiring terminal row, a 12-PLC, a 13-main controller, a 14-power supply module, a 15-relay, a 16-alternating current contactor and a 17-water leakage control.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, 2 and 3, the whole auxiliary monitoring device of the transformer substation is a cabinet structure with a carbon steel surface sprayed with plastic, a dual-power-supply switching controller 1, a touch screen 2, a multifunctional electricity meter 3, an intelligent circuit breaker 4, a manual circuit breaker 5, an operation indicator lamp 6, a manual start button 7, a manual stop button 8 and a manual automatic change-over switch 9 are sequentially arranged on the front side of the cabinet structure, and a dual-power-supply switching switch body 10, a wiring terminal row 11, a PLC12, a main controller 13, a power supply module 14, a relay 15, an alternating current contactor 16 and a water leakage controller 17 are arranged on the back side of the cabinet structure.

Referring to fig. 3, a main controller 13 is respectively connected with a touch screen 2, a PLC12, a dual power supply switching controller 1, a multifunctional electricity meter 3, an intelligent circuit breaker 4 and a wiring terminal row 11 through communication cables, the dual power supply switching controller 1 is connected with a dual power supply switching switch body 10 through a cable, and the main controller 13 is connected with an external sensor and a regulation and control device through the wiring terminal row 11; the intelligent circuit breaker 4 and the manual circuit breaker 5 are respectively arranged between a power supply and a wiring terminal strip 11, the intelligent circuit breaker 4 or the manual circuit breaker 5 is controlled to work through a manual automatic change-over switch 9, the intelligent circuit breaker 4 is controlled by a main controller 13, and the manual circuit breaker 5 is controlled by a manual start button 7 and a manual stop button 8; the operation indicator lamp 6 is used for displaying the working states of the intelligent circuit breaker 4 and the manual circuit breaker 5, and when a circuit corresponding to the indicator lamp 6 is conducted, the indicator lamp 6 is lightened; the input end of the power supply module 14 is connected with an alternating current contactor 16, and the output end of the power supply module 14 is provided with a relay 15; the water leakage controller 17 is provided on the ac contactor 16.

The main controller 13 is designed by adopting an ARM ContexM3 series industrial controller, and is provided with a 16Mbit Flash interface, a 1-path RS232 interface, a 4-path RS485 interface, a 1-path 100M Ethernet interface and the like, and the main controller 13 monitors a central server and core equipment for data communication and remote control of a programmable controller, a touch screen, a dual-power automatic transfer switch, a multifunctional electricity meter and an environment detection instrument in an auxiliary control screen.

The dual-power automatic transfer switch can select Schneider WATSN series products, the dual-power transfer controller 1 is D-type, the dual-power transfer switch body 10 is CB-level, and the dual-power transfer switch body 10 is provided with a circuit breaker of an overcurrent release. The cable protection device has a selective protection function and can provide short circuit and overload protection for the load and the cable at the lower end; the connecting and breaking capacity is far greater than that of other components such as a contactor, a relay and the like.

Specifically, the PLC12 is an S7-200smart programmable controller, and the PLC is used for detecting on-site switching value and analog quantity signals and completing automatic control of lighting, fans, water pumps and other equipment. The touch screen 2 adopts a 24V direct current power supply and RS232 serial port communication mode, can select a Divin touch screen, and is mainly used for local centralized control.

Specifically, the water leakage detection controller adopts an external 24VDC power supply for power supply, the alarm mode is a buzzer, and the alarm output mode is output by a relay.

It should be noted that the multifunctional power meter can measure the electric quantity parameters commonly used in the three-phase power grid system with high precision: three-phase voltage, current, active power, reactive power, power factor, grid frequency, active electric energy and reactive electric energy, and is provided with a communication interface and two paths of electric energy pulses. The system can complete electric quantity measurement, electric energy calculation, data display, acquisition and transmission, and can be widely applied to electric energy measurement, management and assessment in substation automation, distribution automation, intelligent buildings and enterprises. And the LED/LCD field display can be realized.

Referring to fig. 4, the auxiliary monitoring device performs centralized control on peripheral equipment and facilities such as substation lighting, searchlights, air conditioners, electric heaters, fans, water collecting wells, cable ducts and the like, the device forms various remote and field control mechanisms such as field touch screen control, client software, a peripheral equipment centralized control center and the like, and simultaneously, the client software realizes a remote control function in a local area network according to the authority of an operator. Aiming at the field touch screen control, the field touch screen control method is used for carrying out field centralized control on peripheral equipment and facilities of a substation, and comprises the functions of field environment monitoring, peripheral equipment power supply control, alarming and fault, curve analysis and the like, so that the field equipment control and equipment operation are realized. The environment monitoring is used for monitoring the field temperature, humidity and organic matters, monitoring the water level of the water collecting well, detecting the operation parameters of the equipment, monitoring the operation state of the equipment, alarming and monitoring faults, and reflecting the operation condition of the peripheral equipment in the actual operation working condition in real time.

It should be noted that the screen may also display the state and data of the power supply of the backup automatic switching device, and may also display the state of the power supply of the lighting device, the manual switch of the lighting device may be controlled through the touch screen, and meanwhile, the switch of the device may also be controlled remotely according to the client software, and the state of the power supply of the electric heater may be displayed, and the manual switch of the electric heater device may also be controlled through the touch screen, and meanwhile, the switch of the device may also be controlled remotely according to the client software, and the state of the air conditioner may be displayed, and the switch of the air conditioner may be controlled through the touch screen, and meanwhile, the switch of the air conditioner may also be controlled remotely according to the client software. The state of a power supply of the searchlight is displayed for the searchlight, a manual switch of the searchlight is controlled through a touch screen, and meanwhile, the switch of the searchlight can be remotely controlled according to client software. And aiming at the water collecting well, displaying water level and liquid level data of the water collecting well, and working states and control operations of the water pump, and also remotely controlling the on-off of the water pump according to client software. The system is used for displaying the environment of the cable trench, the working state of a submerged cable and the switching state and control operation of the ventilator of the cable trench aiming at the cable trench, and can also be used for remotely controlling the switching of the ventilator of the cable trench according to client software.

The transformer substation auxiliary monitoring device can meet the requirement of remote centralized control of an unattended transformer substation, integrates peripheral equipment and facilities such as field illumination, an air conditioner, an electric heater, a searchlight, a spare power automatic switching device, a water collecting well, a cable trench and a ventilator, collects the state of the existing equipment, and can automatically control the operation of field equipment by utilizing field collection environmental parameters. The device can be controlled manually locally by using field conditions or remotely by using a network. The device fills the blank of the hydraulic power plant on the management of the auxiliary equipment of the transformer substation, reduces the manual intervention operation process of the high-risk working scene of the transformer substation, improves the level and the capability of the hydraulic power plant on the management work of the transformer substation, and makes a solid step towards the transition of the target of the unattended transformer substation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a transformer substation assists monitoring device, a serial communication port, including openly dual power supply switching controller (1) that sets up, touch-sensitive screen (2), multi-functional coulomb meter (3), intelligent circuit breaker (4), manual circuit breaker (5), operation pilot lamp (6), manual start button (7), manual stop button (8) and manual automatic transfer switch (9), still include dual power supply switch body (10) that the back set up, binding post row (11), PLC (12), master controller (13), power module (14), relay (15), ac contactor (16) and leak accuse (17), wherein:

the main controller (13) is respectively connected with the touch screen (2), the PLC (12), the dual-power switching controller (1), the multifunctional electricity meter (3), the intelligent circuit breaker (4) and the wiring terminal row (11) through communication cables, the dual-power switching controller (1) is connected with the dual-power switching switch body (10) through cables, and the main controller (13) is connected with an external sensor and regulation and control equipment through the wiring terminal row (11);

the intelligent circuit breaker (4) and the manual circuit breaker (5) are respectively arranged between a power supply and a wiring terminal row (11), the intelligent circuit breaker (4) or the manual circuit breaker (5) is controlled to work through a manual automatic change-over switch (9), the intelligent circuit breaker (4) is controlled by a main controller (13), and the manual circuit breaker (5) is controlled by a manual start button (7) and a manual stop button (8);

the operation indicator lamp (6) is used for displaying the working states of the intelligent circuit breaker (4) and the manual circuit breaker (5), and when a circuit corresponding to the indicator lamp (6) is conducted, the indicator lamp (6) is turned on;

the input end of the power supply module (14) is connected with an alternating current contactor (16), and the output end of the power supply module (14) is provided with a relay (15);

the water leakage controller (17) is arranged on the alternating current contactor (16).

2. The auxiliary substation monitoring device according to claim 1, wherein the dual-power-supply switching controller (1) is of a D-type, the dual-power-supply switching switch body (10) is of a CB class, and the dual-power-supply switching switch body (10) is provided with a circuit breaker with an overcurrent release.

3. A substation auxiliary monitoring device according to claim 1, characterized in that said master controller (13) comprises an armmontex m3 series industrial controller.

4. A substation auxiliary monitoring arrangement according to claim 1, characterized in that said PLC (12) is a programmable controller of the S7-200smart type.

5. The auxiliary substation monitoring device according to claim 1, wherein the touch screen (2) is powered by 24V direct current and communicates with an RS232 serial port.

6. The auxiliary substation monitoring device according to claim 1, wherein the multifunctional electricity meter (3) is used for collecting three-phase voltage, current, active power, reactive power, power factor, grid frequency, active electric energy and reactive electric energy, and the multifunctional electricity meter (3) has a communication interface and two paths of electric energy pulses for completing electric quantity measurement, electric energy calculation, data display, collection and transmission.