CN113325338A - Portable transformer substation CT secondary load test device - Google Patents
Portable transformer substation CT secondary load test device Download PDFInfo
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- CN113325338A CN113325338A CN202110370715.6A CN202110370715A CN113325338A CN 113325338 A CN113325338 A CN 113325338A CN 202110370715 A CN202110370715 A CN 202110370715A CN 113325338 A CN113325338 A CN 113325338A
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- short
- test device
- secondary winding
- load test
- secondary load
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a CT secondary load test device for a transformer substation, which is used for testing a secondary winding and comprises a device body, wherein a test short connection area and a simulation dosing area are arranged on the device body, the test short connection area is provided with a plurality of short connection modules, each short connection module comprises a wiring end, an air switch and an indicator light, the wiring ends are used for being connected with the secondary winding, the air switches are used for enabling the secondary winding to be in short circuit, the indicator light is used for prompting whether the secondary winding is in short circuit or not, and the simulation dosing area is provided with a power switch, a current output end, an adjusting knob and a display screen. The test device can save test time.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a portable transformer substation CT secondary load test device, and belongs to the technical field of secondary winding test devices.
[ background of the invention ]
At present, the general method of the transformer substation CT secondary load test is as follows: an outdoor (220kV or 110kV field side) tester climbs the CT secondary winding junction box through the crawling ladder, short-circuit wires meeting the test requirements are used for short-circuit one group of CT secondary winding outlet terminals, after the short-circuit wires are short-circuit, the tester climbs the crawling ladder, and the tester at the other side (the relay protection chamber side) is informed by a telephone to prepare for analog addition; after receiving the telephone notification, a tester on the side of the relay protection chamber adds analog quantity to a current secondary circuit where the short-circuited CT secondary winding is located on a current terminal of the protection screen through a test instrument, reads the voltage on the current terminal of the protection screen, and calculates the resistance of the CT current secondary circuit through volt-ampere characteristics. After the test of a group of CT secondary windings is completed, the tester needs to climb up the crawling ladder again to perform the short circuit test of the next group of secondary windings.
By adopting the test method, outdoor site side test personnel need to perform short circuit operation on the upper ladder and the lower ladder for many times, and the repeated operation is more, so that the labor intensity is high; the personnel at the outdoor side and the two sides of the relay protection chamber side need to be matched at the same time, and need to be inquired and confirmed repeatedly through a telephone, so that the operation process is complicated and the consumed time is long.
[ summary of the invention ]
The invention aims to provide a portable transformer substation CT secondary load test device which can save test time.
The technical scheme adopted by the invention is as follows:
the utility model provides a portable transformer substation CT secondary load test device, test device is used for experimental secondary winding, includes the device body, be equipped with experimental short-circuit district and simulation dosing district on the device body, experimental short-circuit district is equipped with a plurality of short circuit modules, the short circuit module includes wiring end, air switch and pilot lamp, the wiring end is used for being connected with secondary winding, air switch is used for making the secondary winding short circuit, the pilot lamp is used for the suggestion whether short circuit of secondary winding, simulation dosing district is equipped with switch, current output part, adjust knob and display screen, adjust knob is used for adjusting current output part's electric current size, the display screen is used for showing the numerical value of electric current and voltage, be equipped with the socket on the device body.
The invention has the following beneficial effects:
the device body comprises a test short-circuit area and a simulation dosing area, wherein the test short-circuit area is provided with a plurality of short-circuit modules, each short-circuit module comprises a wiring end, an air switch and an indicator light, the wiring ends are connected with the secondary windings, the air switches are toggled to realize short-circuit of the secondary windings, and the indicator lights can prompt whether the secondary windings are in short-circuit or not, so that workers can directly determine the short-circuit through observation.
In addition, the analog adding area is provided with a power switch, a current output end, an adjusting knob and a display screen, the current output end is connected with a current loop terminal corresponding to an outdoor field terminal box, analog adding operation is carried out through the power switch and the adjusting knob, the adjusting knob can also control the magnitude of output current, and a worker can read related current and voltage data through the display screen, so that the convenience and intuition of test operation are greatly improved.
Preferably, the current output by the current output end is in the range of 0-20A.
Preferably, the experimental short circuit area is provided with 8 short circuit modules, and the 8 short circuit modules are arranged on the upper surface of the device body side by side.
Preferably, the analog addition area is provided with a power supply, and the power supply is 220V alternating current.
Preferably, the power supply is provided with a leakage protection switch.
Preferably, the power supply provides power for the indicator light.
Preferably, after the air switch is closed, the secondary winding is in short circuit, and the indicator light is turned on.
Preferably, the air switch is an air switch.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a front view of embodiment 1 of the present invention;
fig. 2 is a schematic diagram of the connection between the secondary winding and the current loop terminal according to embodiment 1 of the present invention.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, 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 explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
as shown in fig. 1 and fig. 2, this embodiment shows a portable transformer substation CT secondary load test device, the test device is used for testing secondary winding 6, including device body 1, be equipped with experimental short-circuit area and simulation dosing area on device body 1, experimental short-circuit area is equipped with a plurality of short circuit modules, short circuit module includes wiring end 202, air switch 201 and pilot lamp 203, wiring end 202 is used for being connected with secondary winding 6, air switch 201 is used for making secondary winding 6 short circuit, pilot lamp 203 is used for prompting whether secondary winding 6 short circuit, simulation dosing area is equipped with switch 303, current output 301, adjust knob 302 and display screen 304, adjust knob 302 is used for adjusting the electric current size of current output 301, display screen 304 is used for showing the numerical value of electric current and voltage.
The device body 1 in the embodiment comprises a test short-circuit area and a simulation dosing area, wherein the test short-circuit area is provided with a plurality of short-circuit modules, the shorting module includes a terminal 202, an air switch 201 and an indicator light 203, by connecting the terminal 202 with the secondary winding 6, the short circuit of the secondary winding 6 can be realized by toggling the air switch 201, the indicator light 203 can prompt whether the secondary winding 6 is short-circuited or not, so that a worker can conveniently and directly confirm the short-circuited state through observation, alternatively, this embodiment may be directly shorted to multiple secondary windings 6, with a corresponding and independent air switch 201 for each terminal 202, so that a plurality of secondary windings 6 to be tested can be connected at one time by workers during wiring, thereby the number of times of staff's climbing that significantly reduces alleviates staff's work load, has improved staff's work efficiency greatly.
In addition, in this embodiment the simulation addition district is equipped with switch 303, current output terminal 301, adjust knob 302 and display screen 304, current output terminal 301 is connected with the corresponding current loop terminal 5 of outdoor place terminal box, adds the analog quantity operation through switch 303 and adjust knob 302, adjust knob 302 also can control output current's size, and the staff can read relevant electric current and voltage data through display screen 304, promotes test operation's convenience and intuition greatly, can put together the experimental operation in two places of short circuit and analog quantity through this embodiment, and the quantity of the staff that significantly reduces has saved electric arc communication and has alleviated to reduce staff's cooperation requirement.
In this embodiment be equipped with 8 short circuit modules in the experimental short-circuit district, 8 short circuit modules set up side by side the upper surface of device body 1, every short circuit module all has wiring end 202, air switch 201 and pilot lamp 203, every short circuit module is all mutually independent, when the wiring, 8 groups of secondary winding 6 can once only be connected to the staff, the staff's that significantly reduces climbing number of times, make the 6 short circuits of secondary winding that correspond through stirring air switch when experimental, the pilot lamp 203 that corresponds this moment lights, the staff can directly judge whether short circuit of this secondary winding 6 through pilot lamp 203, make the test process more directly perceived. Of course, it can be understood that the number of the short-circuit modules may be less than 8, or may be more than 8, and the number is set according to actual requirements.
In this embodiment 1 device body is 60cm long, wide 40cm and high 20cm, and its overall structure size is less, makes things convenient for the staff to carry, alleviates staff's transportation subsidiary, the simulation addition district is equipped with the power, the power is the 220V alternating current, earth leakage protection switch is equipped with in power department, the power does pilot lamp 203 provides the power, and the staff can adjust the output current size of current output end 301 through adjust knob 302, in this embodiment the current range that current output end 301 exported is 0-20A.
In addition, in this embodiment, the device body 1 is provided with a socket 4, and the socket 4 is provided with 3 holes, but in other embodiments, the socket 4 may also be composed of a plurality of combined sockets 4.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (7)
1. The utility model provides a portable transformer substation CT secondary load test device, test device is used for experimental secondary winding, its characterized in that: the device comprises a device body, be equipped with experimental short zone and simulation addition district on the device body, experimental short zone is equipped with a plurality of short circuit modules, the short circuit module includes wiring end, air switch and pilot lamp, the wiring end is used for being connected with secondary winding, air switch is used for making the secondary winding short circuit, the pilot lamp is used for the suggestion whether short circuit of secondary winding, simulation addition district is equipped with switch, current output end, adjust knob and display screen, adjust knob is used for the electric current size of adjusting current output end, the display screen is used for showing the numerical value of electric current and voltage, be equipped with the socket on the device body.
2. The portable substation CT secondary load test device of claim 1, characterized in that: the current range output by the current output end is 0-20A.
3. The portable substation CT secondary load test device of claim 1, characterized in that: the test short-circuit area is provided with 8 short-circuit modules, and the 8 short-circuit modules are arranged on the upper surface of the device body side by side.
4. The portable substation CT secondary load test device of claim 1, characterized in that: the analog addition area is provided with a power supply, and the power supply is 220V alternating current.
5. The portable substation CT secondary load test device of claim 4, characterized in that: and the power supply is provided with a leakage protection switch.
6. The portable substation CT secondary load test device of claim 4, characterized in that: the power supply provides power for the indicator light.
7. The portable substation CT secondary load test device of claim 1, characterized in that: after the air switch is closed, the secondary winding is in short circuit, and the indicator light is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370715.6A CN113325338A (en) | 2021-04-07 | 2021-04-07 | Portable transformer substation CT secondary load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110370715.6A CN113325338A (en) | 2021-04-07 | 2021-04-07 | Portable transformer substation CT secondary load test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113325338A true CN113325338A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110370715.6A Pending CN113325338A (en) | 2021-04-07 | 2021-04-07 | Portable transformer substation CT secondary load test device |
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| CN (1) | CN113325338A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007155419A (en) * | 2005-12-02 | 2007-06-21 | Chugoku Electric Power Co Inc:The | Imaginary load inspection device and method |
| CN201514455U (en) * | 2009-09-04 | 2010-06-23 | 武汉市豪迈电力自动化技术有限责任公司 | CT/PT comprehensive test instrument for electric power |
| CN102944700A (en) * | 2012-10-30 | 2013-02-27 | 武汉华源电力工程有限责任公司 | Secondary wiring device for test of characteristics of a current transformer |
| CN203858354U (en) * | 2014-05-19 | 2014-10-01 | 李峰 | On-site automatic detector for voltage transformer |
| CN106299941A (en) * | 2016-09-30 | 2017-01-04 | 国网上海市电力公司 | The quick short-circuit device of transformer secondary terminals |
| CN207675927U (en) * | 2017-12-15 | 2018-07-31 | 云南电网有限责任公司昆明供电局 | A kind of improved portable capacitive load case |
| CN209432939U (en) * | 2018-11-09 | 2019-09-24 | 甘肃送变电工程有限公司 | A kind of high-power transformer second protection polarity test device |
| CN211577408U (en) * | 2019-12-04 | 2020-09-25 | 广东电网有限责任公司 | Portable CT secondary side open circuit testing arrangement |
-
2021
- 2021-04-07 CN CN202110370715.6A patent/CN113325338A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007155419A (en) * | 2005-12-02 | 2007-06-21 | Chugoku Electric Power Co Inc:The | Imaginary load inspection device and method |
| CN201514455U (en) * | 2009-09-04 | 2010-06-23 | 武汉市豪迈电力自动化技术有限责任公司 | CT/PT comprehensive test instrument for electric power |
| CN102944700A (en) * | 2012-10-30 | 2013-02-27 | 武汉华源电力工程有限责任公司 | Secondary wiring device for test of characteristics of a current transformer |
| CN203858354U (en) * | 2014-05-19 | 2014-10-01 | 李峰 | On-site automatic detector for voltage transformer |
| CN106299941A (en) * | 2016-09-30 | 2017-01-04 | 国网上海市电力公司 | The quick short-circuit device of transformer secondary terminals |
| CN207675927U (en) * | 2017-12-15 | 2018-07-31 | 云南电网有限责任公司昆明供电局 | A kind of improved portable capacitive load case |
| CN209432939U (en) * | 2018-11-09 | 2019-09-24 | 甘肃送变电工程有限公司 | A kind of high-power transformer second protection polarity test device |
| CN211577408U (en) * | 2019-12-04 | 2020-09-25 | 广东电网有限责任公司 | Portable CT secondary side open circuit testing arrangement |
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