CN210866969U - Integrated measurement display device for nuclear phase handcart of central switch cabinet - Google Patents
Integrated measurement display device for nuclear phase handcart of central switch cabinet Download PDFInfo
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- CN210866969U CN210866969U CN201921974018.6U CN201921974018U CN210866969U CN 210866969 U CN210866969 U CN 210866969U CN 201921974018 U CN201921974018 U CN 201921974018U CN 210866969 U CN210866969 U CN 210866969U
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Abstract
The utility model discloses a display device is measured in integration of central-positioned cubical switchboard nuclear phase handcart, nuclear phase handcart includes the chassis car, installs the handcart skeleton on the chassis car, should measure display device and mainly include intelligent control ware, the electrified response module of being connected with intelligent control ware, electronic earthing switch module, electronic chassis car module, lock closed control module, man-machine interface module. The utility model discloses with ground connection, test electricity and nuclear phase function concentrate on a nuclear phase handcart, the operator just can easily detect the electrified condition of cubical switchboard and electrified phase sequence through the device, can show six way voltage phase place and earthing switch simultaneously, the position of chassis car, this kind has the secondary side simultaneously and tests electricity, nuclear phase, ground connection and the integration secondary side nuclear phase handcart that shows the function, can improve operating personnel's fail safe nature greatly for traditional high-voltage electricity testing and high-voltage nuclear phase handcart, and convenient operation is simple.
Description
Technical Field
The utility model relates to a secondary side of well-arranged cubical switchboard tests electricity nuclear phase handcart, especially relates to a well-arranged cubical switchboard nuclear phase handcart integration measurement display device.
Background
The middle-mounted high-voltage switch cabinet is widely used in the power system, because the five prevention modes are complete, the bus chamber and the cable chamber are closed, the valve of the switch cabinet is closed after the power supply is cut off, and the valve is dangerous if the valve is pulled open by manpower or hands. The traditional electricity testing and phase checking of the centering high-voltage switch cabinet adopts a grounding handcart, a handheld electricity testing rod and a phase checking instrument to complete the operations of grounding, electricity testing and phase checking. When the handheld electricity testing rod and the handheld phase checking instrument are used for testing electricity and checking the phase, only the baffle of the circuit breaker chamber is opened by hands, and the handheld electricity testing rod or the handheld phase checking instrument is inserted into the static contact.
At present, most of the secondary side electricity checking and phase checking handcarts are adopted, the handcarts are pushed and meanwhile the handcarts are opened, the plum blossom-shaped contacts are in contact with the fixed contacts of a high-voltage switch cabinet, whether a circuit is electrified or not is judged through the fact that an indicator lamp of an electrified display is on or off, and then a phase checker is used for checking whether the phase sequence is consistent or not. The method still carries out electricity testing operation and then phase checking operation, two devices are used for carrying out operation twice, and the steps are complicated; meanwhile, the electrified display has self functional disorder and induction loop faults, the electricity is displayed as no electricity by mistake, and once an operator makes a wrong judgment according to the electrified display, a vicious misoperation accident of electrified grounding disconnecting link can occur. In addition, in the electricity testing and phase checking operation of the high-voltage switch cabinet, the grounding operation is also an essential step.
Therefore, it is desirable to provide a new device for a nuclear phase handcart completion measurement display of a central switch cabinet to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a central-positioned cubical switchboard nuclear phase handcart integration measurement display device is provided, can with ground connection, test the electricity and nuclear phase function concentrate on a nuclear phase handcart, test electricity or single high-pressure nuclear phase safe and reliable, economical and practical, convenient operation more than traditional single high pressure.
In order to solve the technical problem, the utility model discloses a technical scheme be: the nuclear phase handcart integrated measurement display device mainly comprises an intelligent controller, a charged induction module, an electric grounding switch module, an electric chassis vehicle module, a locking control module and a human-computer interface module, wherein the charged induction module, the electric grounding switch module, the electric chassis vehicle module, the locking control module and the human-computer interface module are connected with the intelligent controller;
the electrified induction module is arranged between a nuclear phase handcart conductive arm and a handcart framework and is used for sampling the phase of the power supply at the side;
the electric grounding switch module is used for grounding the nuclear phase handcart;
the electric chassis vehicle module is used for controlling the chassis vehicle to move forwards or backwards;
the locking control module is used for locking and controlling the chassis vehicle to prevent misoperation of the chassis vehicle;
the human-computer interface module is used for displaying the operation and state of electricity testing, phase checking and grounding and data information of the nuclear phase handcart.
In a preferred embodiment of the present invention, the charged sensing module employs a voltage sensor or a high voltage capacitor or a voltage dividing resistor.
Furthermore, the electrified induction module is arranged on the inner side surface of the handcart framework, and a connecting seat used for fixing the electrified induction module is arranged on the handcart framework.
In a preferred embodiment of the present invention, the electric ground switch module mainly includes a ground switch motor and an electric ground switch installed on the handcart frame.
In a preferred embodiment of the present invention, the electric chassis module mainly includes a chassis motor and a chassis transmission gear.
In a preferred embodiment of the present invention, the locking control module mainly includes photocouplers IC 3A-IC 3D, resistors R1, R3, R5, R7, capacitors C1, C2, C3, C5, and inverters IC 2A-IC 2D.
In a preferred embodiment of the present invention, the human-machine interface module includes a liquid crystal touch display screen, and a ground switch on/off manual operation handle.
In a preferred embodiment of the present invention, the intelligent controller employs a single chip microcomputer STM32F 405.
Furthermore, the human-computer interface module and the intelligent controller are arranged on the outer side surface of the handcart framework.
In a preferred embodiment of the present invention, the device further comprises an alarm module and a wireless communication module, wherein the alarm module is used for alarming for electricity testing, phase error and fault information; the wireless communication module is used for remotely checking display data.
The utility model has the advantages that: the utility model discloses with ground connection, test electricity and nuclear phase function concentrate on a nuclear phase handcart, the operator just can easily detect the electrified condition of cubical switchboard and electrified phase sequence through the device, can show six way voltage phase place and earthing switch simultaneously, the position of chassis car, this kind has the secondary side simultaneously and tests electricity, nuclear phase, ground connection and the integration secondary side nuclear phase handcart that shows the function, can improve operating personnel's fail safe nature greatly for traditional high-voltage electricity testing and high-voltage nuclear phase handcart, and convenient operation is simple.
Drawings
Fig. 1 is a structural schematic block diagram of the integrated measurement and display device for the nuclear phase handcart of the central switch cabinet of the utility model;
FIG. 2 is a front view of a nuclear phase hand truck with the measurement display device installed;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic structural diagram of the human-machine interface module;
FIG. 5 is a circuit diagram of the intelligent controller;
FIG. 6 is a pin diagram of the intelligent controller;
FIG. 7 is a circuit diagram of the intelligent controller power supply;
FIG. 8 is a circuit diagram of the hot induction module;
fig. 9 is a circuit diagram of the electric ground switch module, electric chassis module;
FIG. 10 is a circuit diagram of the lock close control module;
the parts in the drawings are numbered as follows: 1. voltage sensor, 2, electrically conductive arm, 3, plum blossom contact, 4, electronic earthing switch, 5, chassis car, 6, handcart skeleton, 7, intelligent control ware, 8, earthing switch deciliter manually operation handle, 9, connecting seat.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
example 1:
referring to fig. 2 to 3, an integrated measurement and display device for a nuclear phase handcart of a central switch cabinet mainly comprises an intelligent controller, a charged induction module connected with the intelligent controller, an electric grounding switch module, an electric chassis vehicle module, a lock-closing control module, a human-computer interface module, an alarm module and a wireless communication module. The nuclear phase handcart comprises a chassis vehicle 5 and a handcart framework 6 arranged on the chassis vehicle 5. The measurement display device and the nuclear phase handcart are integrally designed, the grounding, electricity testing and nuclear phase functions are integrated on one nuclear phase handcart, and the measurement display device is convenient and simple to operate, safe and reliable.
The electrified induction module is provided with six paths which are respectively connected with three phases (A1O/B1O/C1O, A2O/B2O/C2O) of a double power supply. Each charged induction module is arranged between the nuclear phase handcart conductive arm 2 and the handcart framework 6 and is used for sampling the phase of the power supply at the side. The electrified induction module is arranged on the inner side surface of the handcart framework 6, and a connecting seat 9 for fixing the electrified induction module is arranged on the handcart framework 6. According to different precision requirements, the charged induction module can adopt a voltage sensor 1 or a high-voltage capacitor or a divider resistor to be connected with a secondary line, and a voltage signal of the phase can be obtained. In this embodiment, the charged induction module adopts a voltage sensor 1. With reference to fig. 2, one end of the voltage sensor 1 is fixed on the connecting seat 9 of the handcart framework 6, one end of the voltage sensor is connected with the conductive arm 2, and the other end of the conductive arm 2 is provided with the tulip contact 3.
The electric grounding switch module is used for grounding operation of the nuclear phase handcart and mainly comprises a grounding switch motor and an electric grounding switch 4 installed on a handcart framework 6. The electric chassis vehicle module is used for controlling the chassis vehicle 5 to move forward/backward and comprises a chassis vehicle motor and a chassis vehicle transmission gear. The electric grounding switch 4 is switched on/off and the nuclear phase handcart is moved in/out by controlling the power supply of the grounding switch motor and the chassis handcart motor.
In order to facilitate the operation of operators, the human-computer interface module and the intelligent controller 7 are arranged on the outer side surface of the handcart framework 6. The human-computer interface module is used for displaying the operation and state of electricity testing, phase checking and grounding and data information of the nuclear phase handcart and comprises a liquid crystal touch display screen, a grounding switch opening and closing observation window and a grounding switch opening and closing manual operation handle 8. With reference to fig. 4, the lcd touch screen can display the collected, calculated and compared data, including the phase angle and phase difference of the in/out line port of the switch cabinet, and whether the in/out line port is grounded/electrified. The observation window (not shown in the figure) can be used for checking the opening and closing position of the earthing switch, the earthing switch opening and closing indication position can be used for carrying out the opening and closing operation of the earthing switch by using a manual operation handle 8, and the opening and closing state is displayed by a pointer.
The locking control module is used for locking and controlling the chassis vehicle 5 to prevent misoperation of the chassis vehicle; the alarm module is used for alarming electricity inspection, phase error and fault information; the wireless communication module is connected with an operator mobile phone by adopting available wireless transmission means such as Bluetooth and WLAN, and the operator mobile phone is provided with a corresponding APP, so that the function of remotely checking data display of the display screen is realized, and unsafe factors caused by close checking are prevented.
The circuit structure and principle of each module in the device are described in detail below:
the intelligent controller 7 is a control core of the device, adopts a single chip microcomputer STM32F405, is small in size and strong in function, and can complete data conversion, data operation and logic function processing. Specifically, six voltage signals acquired by the voltage sensor 1 are converted into digital signals, an upper port of the phase A is set as a reference phase, the reference phase and the converted digital signals are calculated and compared, and each phase difference is detected and displayed in a liquid crystal display screen in real time. Meanwhile, the intelligent controller 7 controls the functions of the modules, so that the states of the electric grounding switch 4 and the chassis vehicle 5 are detected, and an alarm is given in time.
Referring to fig. 5, the components and the connections of the intelligent controller 7 and its peripheral circuits are shown in the figure, and the definition of each pin is shown in fig. 6, including a dual power supply a/B/C connection port, an L/N connection port, a common port, a test station, a work station, a switch-on/switch-off, a chassis motor +, a chassis motor-, a ground switch motor +, a chassis lock control 1, and a chassis lock control 2. The main peripheral circuit of the intelligent controller comprises an intelligent controller power supply circuit, and all components and connection relations thereof are shown in fig. 7, and comprise a voltage transformer T1, a bridge rectifier IC10, a three-terminal fixed voltage regulator MOD2, capacitors C36, C37, C46 and a fuse RV 1. Preferably, the bridge rectifier IC10 is of the type GBU808, and the three-terminal fixed voltage regulator MOD2 is of the type HA24P 05. The 220V alternating current power supply is converted into 5V alternating current voltage through a step-down transformer T1, and the 5V alternating current voltage is filtered and rectified through a bridge rectifier IC10, capacitors C36 and C46 to output a direct current power supply. Meanwhile, the dc power supply is regulated to 220V dc voltage again by the three-terminal fixed voltage regulator MOD 2.
Referring to fig. 8, the charged induction module adopts a six-circuit voltage sensor with the same circuit structure and principle, and mainly includes voltage transformers PT 1-PT 6, operational amplifiers IC6A, IC6B, IC6C, IC6D, IC7A, IC7B, and IC7C, and the components and the connection relationship thereof are shown in the figure. The primary side of the voltage transformer is connected with the phase of the power supply at the side, and the secondary side of the voltage transformer amplifies the voltage signal and transmits the amplified voltage signal to the corresponding pin of the intelligent controller. The voltage transformers PT 1-PT 6 convert 6 paths of voltage signals input by 6 voltage sensors into 6 paths of small signals, and the small signals are converted into 6 paths of voltage signals through operational amplifiers IC6A, IC6B, IC6C, IC6D, IC7A, IC7B and IC7C and input to the ARM single chip microcomputer.
Referring to fig. 9, the components of the electric grounding switch module and the electric chassis module and the connection relationship thereof are shown in the figure, and mainly include a photoelectric coupler IC13, a P-channel MOS transistor Q1, and a diode D1, and the photoelectric coupler IC13 adopts a PC 817. An action signal CMSW output by the ARM single chip microcomputer controls a P-channel MOS tube Q1 through a photoelectric coupler IC13, and then the grounding switch motor and the chassis motor are driven to rotate forwards and reversely.
Referring to fig. 10, the components of the lock-closed control module and the connection relationship thereof are shown in the figure, and mainly include photocouplers IC 3A-IC 3D, resistors R1, R3, R5, R7, capacitors C1, C2, C3, C5, and inverters IC 2A-IC 2D, wherein ACPL247 is used for the photocouplers IC 3A-IC 3D, and 6-channel single-input-output inverters 74HC04 are used for the inverters IC 2A-IC 2D. According to 4 different STATEs of STATE 1-STATE 4, namely 4 different STATEs of the grounding switch and the chassis, 4 STATE quantities are output to the ARM single chip microcomputer through the photoelectric couplers IC 3A-IC 3D.
The utility model discloses with ground connection, test electricity and nuclear phase function concentrate on a nuclear phase handcart, the operator just can easily detect the electrified condition of cubical switchboard and electrified phase sequence through the device, can show six way voltage phase place and earthing switch simultaneously, the position of chassis car, this kind has the secondary side simultaneously and tests electricity, nuclear phase, ground connection and the integration secondary side nuclear phase handcart that shows the function, can improve operating personnel's fail safe nature greatly for traditional high-voltage electricity testing and high-voltage nuclear phase handcart, and convenient operation is simple.
Example 2:
in this embodiment, the charged sensing module adopts a high-voltage capacitor, and converts a high voltage into a low-voltage signal in an equal proportion by means of voltage division of the capacitor, so as to derive data of the high-voltage signal from the low-voltage signal. The rest is the same as embodiment 1, and is not described herein.
Specifically, high-voltage capacitors of three specifications are respectively customized according to three voltage grades of 6kV, 10kV and 35kV, and meanwhile, the capacitors of each specification are required to adopt a two-stage series connection mode. For example, a capacitor with 10kV specification is formed by connecting two capacitors with voltage of 9.9kV and 0.1kV in series, wherein one end of the 9.9kV capacitor is connected to the high voltage 10kV, the other end is connected to the 0.1kV capacitor, the other end of the 0.1kV capacitor is grounded, and the connecting ends of the 9.9kV and 0.1kV capacitors are connected to the input end of the intelligent controller. The change of the 10kV voltage can be measured from a signal wire led out from the 0.1kV capacitor, so that the purpose of measuring the 10kV voltage phase is achieved.
Example 3:
in this embodiment, the charged sensing module adopts a voltage dividing resistor, and converts a high voltage into a low voltage signal in an equal proportion by means of resistor voltage division, so as to derive data of the high voltage signal from the low voltage signal. The rest is the same as embodiment 1, and is not described herein.
Specifically, resistors with three specifications are respectively customized according to three voltage grades of 6kV, 10kV and 35kV, and meanwhile, the resistors with each specification are required to be connected in series in a two-stage mode. For example, a resistor with 10kV specification is formed by connecting two resistors with voltage of 9.9kV and 0.1kV in series, one end of the 9.9kV resistor is connected to the high voltage 10kV, the other end is connected to the 0.1kV resistor, the other end of the 0.1kV resistor is grounded, and the connection ends of the two resistors with 9.9kV and 0.1kV are connected to the input end of the intelligent controller. The change of the 10kV voltage can be measured from a signal wire led out from the 0.1kV resistor, so that the purpose of measuring the 10kV voltage phase is achieved.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A nuclear phase handcart integrated measurement display device of a central switch cabinet is disclosed, wherein the nuclear phase handcart comprises a chassis vehicle and a handcart framework arranged on the chassis vehicle, and is characterized by mainly comprising an intelligent controller, a charged induction module connected with the intelligent controller, an electric grounding switch module, an electric chassis vehicle module, a locking control module and a human-computer interface module;
the electrified induction module is arranged between a nuclear phase handcart conductive arm and a handcart framework and is used for sampling the phase of the power supply at the side;
the electric grounding switch module is used for grounding the nuclear phase handcart;
the electric chassis vehicle module is used for controlling the chassis vehicle to move forwards or backwards;
the locking control module is used for locking and controlling the chassis vehicle to prevent misoperation of the chassis vehicle;
the human-computer interface module is used for displaying the operation and state of electricity testing, phase checking and grounding and data information of the nuclear phase handcart.
2. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the charged induction module adopts a voltage sensor or a high-voltage capacitor or a divider resistor.
3. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1 or 2, wherein the charged induction module is arranged on the inner side surface of the handcart framework, and the handcart framework is provided with a connecting seat for fixing the charged induction module.
4. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the electric grounding switch module mainly comprises a grounding switch motor and an electric grounding switch installed on a handcart framework.
5. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the electric chassis vehicle module mainly comprises a chassis vehicle motor and a chassis vehicle transmission gear.
6. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the lock-out control module mainly comprises photocouplers IC 3A-IC 3D, resistors R1, R3, R5, R7, capacitors C1, C2, C3, C5 and inverters IC 2A-IC 2D.
7. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the man-machine interface module comprises a liquid crystal touch display screen and a manual operating handle of a grounding switch.
8. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, wherein the intelligent controller adopts a single chip microcomputer STM32F 405.
9. The integrated measurement and display device for the nuclear-phase handcart of the central switch cabinet according to claim 7 or 8, wherein the human-computer interface module and the intelligent controller are both arranged on the outer side surface of the handcart framework.
10. The integrated measurement and display device for the nuclear phase handcart of the central switch cabinet according to claim 1, further comprising an alarm module and a wireless communication module, wherein the alarm module is used for alarming for electricity testing, phase errors and fault information; the wireless communication module is used for remotely checking display data.
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| CN201921974018.6U CN210866969U (en) | 2019-11-13 | 2019-11-13 | Integrated measurement display device for nuclear phase handcart of central switch cabinet |
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| CN201921974018.6U CN210866969U (en) | 2019-11-13 | 2019-11-13 | Integrated measurement display device for nuclear phase handcart of central switch cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917220A (en) * | 2021-10-09 | 2022-01-11 | 广东电网有限责任公司 | Three-phase live display, cable line phase sequence monitoring and checking device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113917220A (en) * | 2021-10-09 | 2022-01-11 | 广东电网有限责任公司 | Three-phase live display, cable line phase sequence monitoring and checking device and method |
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