CN210323342U - On-line current monitoring ammeter calibration device - Google Patents
On-line current monitoring ammeter calibration device Download PDFInfo
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- CN210323342U CN210323342U CN201921043901.3U CN201921043901U CN210323342U CN 210323342 U CN210323342 U CN 210323342U CN 201921043901 U CN201921043901 U CN 201921043901U CN 210323342 U CN210323342 U CN 210323342U
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Abstract
The utility model discloses an online current monitoring ammeter calibration device, which relates to the field of monitoring equipment, and adopts the technical scheme that the online current monitoring ammeter calibration device comprises a shell, a host and a rechargeable battery, wherein the host and the rechargeable battery are arranged in the shell; the host is electrically connected with the rechargeable battery, the rechargeable battery is electrically connected with a charging port arranged on the shell to respectively form a power supply path, the power switch is connected in series on the power supply path of the host, and the shell is also provided with an RS232 interface, a key area and a grounding column; the RS232 interface, the key area and the grounding column are electrically connected with the host to respectively form a passage. The utility model has the advantages that: voltage output range: and lightning action counting inspection and milliammeter indication verification can be completed by one-time wiring. The scheme can be directly connected with the field equipment for detection, the field equipment does not need to be offline, and the online detection of the equipment is realized.
Description
Technical Field
The utility model relates to a monitoring facilities field, in particular to online current monitoring ampere meter calibration equipment.
Background
The lightning arrester is an important electrical device for protecting power equipment from overvoltage in a power grid, and the safety of a power system is directly influenced by the condition of the operation condition of the lightning arrester. The action of the lightning arrester and the leakage current are usually monitored by an online monitoring ammeter (discharge counter). Due to poor sealing, moisture or humidity may enter the online monitoring ammeter (discharge counter) during operation, so that the online monitoring ammeter (discharge counter) cannot operate normally due to corrosion of internal components or other reasons, and the leakage current is indicated inaccurately. The regulations stipulate that lightning arrester monitors should be checked 1 time per year.
In order to meet the production requirement of an electric power system, the company develops an online current monitoring ammeter calibrator which can calibrate the action of the online current monitoring ammeter (discharge counter) and can also calibrate the leakage ammeter of the online current monitoring ammeter (discharge counter).
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides an online current monitoring ampere meter calibration equipment.
The technical scheme is that the device comprises a shell, a host and a rechargeable battery, wherein the host and the rechargeable battery are arranged in the shell; the host is electrically connected with the rechargeable battery, the rechargeable battery is electrically connected with a charging port arranged on the shell to respectively form a power supply passage, the power switch is connected in series on the power supply passage of the host, and the shell is also provided with an RS232 interface, a key area and a grounding column; the RS232 interface, the key area and the grounding column are electrically connected with the host to respectively form a passage;
the display screen 1 is arranged on the upper surface of the shell 11, the electrode connectors are symmetrically arranged on two sides of the display screen 1, the middle of one side, adjacent to the electrode connectors, of the display screen 1 is provided with the key area 8, and the RS232 interface 6, the charging port 7, the power switch 9 and the grounding column 10 are respectively arranged on two sides of the key area 8.
Preferably, the electrode joint comprises a current check output positive electrode 2, a current check output negative electrode 3, a lightning stroke discharge output positive electrode 4 and a lightning stroke discharge output negative electrode 5.
Preferably, the host comprises a main controller, and the main controller is respectively connected with the high-voltage pulse voltage generating circuit and the inverter unit to form a control path; the lightning stroke discharge output positive electrode 4 and the lightning stroke discharge output negative electrode 5 are electrically connected with the output end of the high-voltage pulse voltage generating circuit; the output end of the high-voltage pulse voltage generating circuit is also connected with the input end of the simulation lightning arrester; the output ends of the simulation lightning arrester and the current measuring unit are connected with the input end of the main controller;
the current check output anode 2 and the current check output cathode 3 are electrically connected with the input end of the current measuring unit;
the main controller is also connected with the RS232 interface 6 and the display screen 1 to form a data output channel; the input end of the main controller is also connected with a temperature sensor and a key of the key area 8 to form a data input channel;
the rechargeable battery is electrically connected with each component in the host machine through the inverter unit to form a power supply path.
Preferably, the lightning stroke discharge output positive electrode 4 is connected with the positive electrode of the simulation lightning arrester through a normally open contact of a relay; and the lightning stroke discharge output negative electrode 5 is connected with the negative electrode of the simulation lightning arrester.
Preferably, the display screen 1 is connected with the main controller through a four-core flat cable;
the current check output anode 2 and the current check output cathode 3 are connected with a current detection unit;
the RS232 interface 6 is connected with the main controller through an anti-shielding flat cable;
the keys of the key area 8 are connected with the main controller by a five-core flat cable.
Preferably, the charging port 7 is connected to a producible DC16.8V adapter power supply, and the charging port 7 is connected to the rechargeable battery through a voltage stabilizing circuit and a main controller in sequence.
Preferably, the power switch 9 is arranged in the power supply path to control the relay to realize the power supply of the host;
the grounding column 10 is connected with the main board of the machine body and the main machine.
Preferably, the housing 11 is a rectangular body, and the housing 11 is made of aluminum alloy.
Preferably, the rechargeable battery is a lithium battery.
Preferably, the display 1 screen adopts a low-power consumption 4-inch high-definition liquid crystal display screen to realize high-definition burr-free display.
The current check output positive and negative terminals adopt red and black banana jack binding posts as the check output positive and negative binding posts, and the direct-insertion connector can be screwed up and fixed.
The positive electrode and the negative electrode of the lightning stroke discharge output are the lightning stroke discharge output port, the positive electrode is inserted into a rotary fixed interface, the negative electrode is a banana jack binding post, and a direct-insertion connector can be screwed up and fixed.
The RS232 interface 6 is made of delicate brass pins and glass fiber insulating materials, and high insulating property and rapidness of data transmission are achieved.
The key area 8 is provided with four soft touch keys for increasing, reducing, functioning and starting and stopping, so that flexible setting is realized.
The power switch 9 adopts a self-locking switch with a switch mark blue indicator light, and the dustproof water drainage grade reaches IP 67.
The grounding post 10 is a brass nickel-plated grounding post, and the bearing current can reach 30A.
The lithium battery adopts the imported 18650 high energy storage lithium cell that the security performance is high, the number of times of charging reaches more than 1000, and the lithium cell is connected with the contravariant unit through intelligent object, and the electromagnetic interference is greatly reduced in intelligent object's design, guarantees the stability of system's power supply.
The model of the intelligent module is WFG4320 TQ.
The main controller adopts a high-precision central processing unit and is matched with each input/output port to realize the precision and rapidity of data exchange and processing.
The master controller is model number QXE 0943.
The inversion unit adopts a modularized inversion circuit board, so that the electromagnetic compatibility and the anti-electromagnetic interference capability of the power supply are improved.
The model of the modularized inverter circuit board is P5052L.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
1. voltage output range: the voltage output is 500V-2000V.
2. The discharge times and discharge intervals of the instrument can be set.
3. The instrument is internally provided with a battery for power supply, and the continuous working time is more than 8 hours.
4. Current output mode: valid, peak, check three modes.
5. And lightning action counting inspection and milliammeter indication verification can be completed by one-time wiring.
The scheme can be directly connected with the field equipment for detection, the field equipment does not need to be offline, and the online detection of the equipment is realized.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a power supply circuit diagram according to an embodiment of the present invention.
Wherein the reference numerals are: 1. a display screen; 2. current checking and outputting the positive pole; 3. a current check output cathode; 4. a lightning stroke discharge output positive electrode; 5. a lightning stroke discharge output cathode; 6. an RS232 interface; 7. a charging port; 8. a key area; 9. a power switch; 10. a ground post; 11. a housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but 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 thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Referring to fig. 1 to 3, the utility model provides an online current monitoring ammeter calibration device, which comprises a shell 11, a host and a rechargeable battery, wherein the host and the rechargeable battery are arranged in the shell 11, and the host is electrically connected with a display screen 1, a plurality of electrode connectors and a power switch 9 which are arranged on the shell 11; the host is electrically connected with the rechargeable battery, the rechargeable battery is electrically connected with a charging port 7 arranged on the shell 11 to respectively form a power supply path, the power switch 9 is connected in series on the power supply path of the host, and the shell 11 is also provided with an RS232 interface 6, a key area 8 and a grounding column 10; the RS232 interface 6, the key area 8 and the grounding column 10 are electrically connected with the host to respectively form a passage;
display screen 1 sets up on the upper surface of casing 11, and the bilateral symmetry of display screen 1 sets up electrode joint, and display screen 1 is provided with button district 8 with one side middle part that electrode joint is adjacent, and the both sides of button district 8 set up RS232 interface 6, charge mouthful 7, switch 9 and ground post 10 respectively.
The electrode joint comprises a current check output anode 2, a current check output cathode 3, a lightning stroke discharge output anode 4 and a lightning stroke discharge output cathode 5.
The host machine comprises a main controller, and the main controller is respectively connected with the high-voltage pulse voltage generating circuit and the inversion unit to form a control channel; the lightning stroke discharge output positive electrode 4 and the lightning stroke discharge output negative electrode 5 are electrically connected with the output end of the high-voltage pulse voltage generating circuit; the output end of the high-voltage pulse voltage generating circuit is also connected with the input end of the simulation lightning arrester; the output ends of the simulation lightning arrester and the current measuring unit are connected with the input end of the main controller;
the current check output anode 2 and the current check output cathode 3 are electrically connected with the input end of the current measuring unit;
the main controller is also connected with the RS232 interface 6 and the display screen 1 to form a data output channel; the input end of the main controller is also connected with a temperature sensor and a key of the key area 8 to form a data input channel;
the rechargeable battery is electrically connected with each component in the main machine through the inverter unit to form a power supply path.
The lightning stroke discharge output positive pole 4 is connected with the positive pole of the simulation lightning arrester through a normally open contact of the relay; and the lightning stroke discharge output negative electrode 5 is connected with the negative electrode of the simulation lightning arrester.
The display screen 1 is connected with a main controller through a four-core flat cable;
the current check output anode 2 and the current check output cathode 3 are connected with a current detection unit;
the RS232 interface 6 is connected with the main controller through an anti-shielding flat cable;
the keys of the key area 8 are connected with the main controller by a five-core flat cable.
The charging port 7 is connected with an DC16.8V adaptor power supply which can be produced, and the charging port 7 is connected with a rechargeable battery after passing through a voltage stabilizing circuit and a main controller in sequence.
The power switch 9 is arranged in the power supply path to control the relay to realize the power supply of the host;
the grounding column 10 is connected with the main board of the machine body and the main machine.
The housing 11 is a rectangular body, and the housing 11 is made of aluminum alloy.
The rechargeable battery is a lithium battery.
Display 1 screen adopts 4 cun high clear liquid display of low-power consumption to realize the burr-free demonstration of high definition.
The current check output positive and negative terminals adopt red and black banana jack binding posts as the check output positive and negative binding posts, and the direct-insertion connector can be screwed up and fixed.
The positive electrode and the negative electrode of the lightning stroke discharge output are the lightning stroke discharge output port, the positive electrode is inserted into a rotary fixed interface, the negative electrode is a banana jack binding post, and a direct-insertion connector can be screwed up and fixed.
The RS232 interface 6 is made of delicate brass pins and glass fiber insulating materials, and high insulating property and rapidness of data transmission are achieved.
The key area 8 is provided with four soft touch keys for increasing, reducing, functioning and starting and stopping, so that flexible setting is realized.
The power switch 9 adopts a self-locking switch with a switch mark blue indicator light, and the dustproof water-discharging grade reaches IP 67.
The grounding post 10 adopts a brass nickel-plated grounding post, and the carrying current can reach 30A.
The lithium battery adopts the imported 18650 high energy storage lithium cell that the security performance is high, the number of times of charging reaches more than 1000, and the lithium cell is connected with the contravariant unit through intelligent object, and intelligent object's design greatly reduces electromagnetic interference, guarantees the stability of system's power supply.
The model of the intelligent module is WFG4320 TQ.
The main controller adopts a high-precision central processing unit and is matched with each input/output port to realize the precision and rapidity of data exchange and processing.
The master controller is model number QXE 0943.
The inversion unit adopts a modularized inversion circuit board, so that the electromagnetic compatibility and the anti-electromagnetic interference capability of the power supply are improved.
The model of the modularized inverter circuit board is P5052L.
The utility model discloses during the use, according to the experimental wiring picture of thunderbolt discharge and the wiring of the counter check-up wiring picture that discharges, later the start gets into the initial picture that sets up, switches the option selection through the function key, and the cursor is adjusted the increase or is subtracted the key and change corresponding parameter when corresponding option, sets up and selects "start thunderbolt discharge" or "starting current check-up" to carry out corresponding experiment after accomplishing.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. An online current monitoring ammeter calibration device comprises a shell (11), a host and a rechargeable battery, wherein the host and the rechargeable battery are arranged in the shell (11), the host is electrically connected with a display screen (1) arranged on the shell (11), a plurality of electrode joints and a power switch (9); the host is electrically connected with the rechargeable battery, the rechargeable battery is electrically connected with a charging port (7) arranged on the shell (11) to respectively form a power supply path, and the power switch (9) is connected in series on the power supply path of the host, and the host is characterized in that the shell (11) is also provided with an RS232 interface (6), a key area (8) and a grounding column (10); the RS232 interface (6), the key area (8) and the grounding column (10) are electrically connected with the host to respectively form a passage;
display screen (1) sets up on the upper surface of casing (11), the bilateral symmetry of display screen (1) sets up electrode joint, display screen (1) with one side middle part that electrode joint is adjacent is provided with press button district (8), the both sides that press button district (8) set up respectively RS232 interface (6), charge mouthful (7), switch (9) and ground post (10).
2. The on-line current monitoring ammeter verification device of claim 1, wherein the electrode joint comprises a current verification output positive electrode (2), a current verification output negative electrode (3), a lightning stroke discharge output positive electrode (4), and a lightning stroke discharge output negative electrode (5).
3. The on-line current monitoring ammeter calibration device of claim 2, wherein the host comprises a main controller, and the main controller is respectively connected with the high-voltage pulse voltage generating circuit and the inverter unit to form a control path; the lightning stroke discharge output positive electrode (4) and the lightning stroke discharge output negative electrode (5) are electrically connected with the output end of the high-voltage pulse voltage generating circuit; the output end of the high-voltage pulse voltage generating circuit is also connected with the input end of the simulation lightning arrester; the output ends of the simulation lightning arrester and the current measuring unit are connected with the input end of the main controller;
the current check output positive pole (2) and the current check output negative pole (3) are electrically connected with the input end of the current measuring unit;
the main controller is also connected with the RS232 interface (6) and the display screen (1) to form a data output channel; the input end of the main controller is also connected with a temperature sensor and a key of the key area (8) to form a data input channel;
the rechargeable battery is electrically connected with each component in the host machine through the inverter unit to form a power supply path.
4. The online current monitoring ammeter calibration device as claimed in claim 3, wherein the lightning stroke discharge output positive electrode (4) is connected with the positive electrode of the simulation arrester through a relay normally open contact; and the lightning stroke discharge output cathode (5) is connected with the cathode of the simulation lightning arrester.
5. The on-line current monitoring ammeter calibration device as claimed in claim 3, wherein said display screen (1) is connected to the main controller via four-core flat cable;
the current check output positive pole (2) and the current check output negative pole (3) are connected with the current detection unit;
the RS232 interface (6) is connected with the main controller through an anti-shielding flat cable;
the keys of the key area (8) are connected with the main controller by a five-core flat cable.
6. The on-line current monitoring ammeter verification device as claimed in claim 3, wherein the charging port (7) is connected with a producible DC16.8V adapter power supply, and the charging port (7) is connected with the rechargeable battery after sequentially passing through a voltage stabilizing circuit and a main controller.
7. The online current monitoring ammeter calibration device as claimed in claim 3, wherein the power switch (9) is arranged in the power supply path to control the relay to realize the power supply of the host;
the grounding column (10) is connected with the main board of the machine body and the main machine.
8. The online current monitoring ammeter verification device as claimed in any one of claims 1-7, wherein the housing (11) is a rectangular body, and the housing (11) is made of aluminum alloy.
9. The on-line current monitoring ammeter calibration device as claimed in any one of claims 1-7, wherein said rechargeable battery is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043901.3U CN210323342U (en) | 2019-07-05 | 2019-07-05 | On-line current monitoring ammeter calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043901.3U CN210323342U (en) | 2019-07-05 | 2019-07-05 | On-line current monitoring ammeter calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323342U true CN210323342U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921043901.3U Active CN210323342U (en) | 2019-07-05 | 2019-07-05 | On-line current monitoring ammeter calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323342U (en) |
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2019
- 2019-07-05 CN CN201921043901.3U patent/CN210323342U/en active Active
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Address after: Room 19F, building 1, Lianhe Fortune Plaza, No. 3177, Tianchen Road, high tech Zone, Jinan City, Shandong Province, 250101 Patentee after: Shandong shankai Electric Power Co.,Ltd. Address before: Room 19F, building 1, Lianhe Fortune Plaza, No. 3177, Tianchen Road, high tech Zone, Jinan City, Shandong Province, 250101 Patentee before: JINAN SUN-K ELECTRIC POWER EQUIPMENT Co.,Ltd. |