CN214954031U - Transformer substation CT secondary load test device - Google Patents

Abstract

The utility model relates to a CT secondary load test device of transformer substation, test device is used for experimental secondary winding, the device comprises a device body, be equipped with experimental short-circuit district and simulation dosing area on the device body, experimental short-circuit district is equipped with a plurality of short circuit modules, the short circuit module includes wiring end, short circuit switch and pilot lamp, the wiring end is used for being connected with secondary winding, the short circuit 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 area is equipped with switch, current output end, adjust knob and display screen. The test device can save test time.

Description

Transformer substation CT secondary load test device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a CT secondary load test device of transformer substation belongs to secondary winding test device technical field.

[ 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.

[ Utility model ] content

The utility model aims to solve the technical problem that a CT secondary load test device of transformer substation is provided, test time can be saved to this test device.

Solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a CT secondary load test device of transformer substation, 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, short circuit switch and pilot lamp, the wiring end is used for being connected with secondary winding, short circuit 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.

Adopt the beneficial effects of the utility model:

the utility model discloses in the device body is including experimental short-circuit district and simulation dosing area, experimental short-circuit district is equipped with a plurality of short circuit modules, the short circuit module includes wiring end, short circuit switch and pilot lamp, is connected with secondary winding through the wiring end, through stirring short circuit switch can realize right secondary winding's short circuit, the pilot lamp can indicate whether secondary winding has the short circuit, makes things convenient for the staff to directly confirm through observing, in addition the utility model discloses can directly carry out the short circuit with a plurality of secondary winding, every wiring end all has corresponding and independent short circuit switch, therefore the staff can once only connect a plurality of secondary winding that need the experiment when the wiring to the number of times of staff's climbing that significantly reduces alleviates staff's work load, has improved staff's work efficiency greatly.

Additionally, the utility model discloses in simulation addition district is equipped with switch, current output end, adjust knob and display screen, current output end is connected with the corresponding current loop terminal of outdoor place terminal case, adds the analog quantity operation through switch and adjust knob, adjust knob also can control output current's size, and the staff can read relevant electric current and voltage data through the display screen, promotes test operation's convenience and intuition greatly, through the utility model discloses can put together two places test operation of short circuit and analog quantity, the staff's that significantly reduces quantity has saved electric arc communication and has alleviated to reduce staff's cooperation requirement.

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 short-circuit switch is closed, the secondary winding is in short circuit, and the indicator light is turned on.

Preferably, the short-circuit switch is an air switch.

Preferably, the device body is provided with a socket.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a front view of embodiment 1 of the present invention;

fig. 2 is a schematic diagram of the connection between embodiment 1 of the present invention and the secondary winding and the current loop terminal.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work 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 or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify 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 therefore should not be construed 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," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1:

as shown in fig. 1 and fig. 2, this embodiment shows a 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 the device body 1, experimental short-circuit area is equipped with a plurality of short circuit modules, short circuit module includes wiring end 202, short circuit switch 201 and pilot lamp 203, wiring end 202 is used for being connected with secondary winding 6, short circuit switch 201 is used for making secondary winding 6 short circuit, pilot lamp 203 is used for the suggestion secondary winding 6 is short circuit, simulation dosing area is equipped with switch 303, current output terminal 301, adjust knob 302 and display screen 304, adjust knob 302 is used for adjusting the electric current size of current output terminal 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 comprises a terminal 202, a shorting switch 201 and an indicator light 203, the terminal 202 is connected with the secondary winding 6, the short circuit of the secondary winding 6 can be realized by pulling the short circuit 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, in addition, the present embodiment can be directly short-circuited with a plurality of secondary windings 6, each terminal 202 having a corresponding and independent short-circuit switch 201, 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, short circuit switch 201 and pilot lamp 203, wherein short circuit switch 201 is air switch, and every short circuit module is all mutually independent, and 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, and the staff can directly judge whether short circuit of this secondary winding through pilot lamp 203, makes 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.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. 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 (9)

1. The utility model provides a 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 dosing district on the device body, experimental short zone is equipped with a plurality of short circuit modules, the short circuit module includes wiring end, short circuit switch and pilot lamp, the wiring end is used for being connected with secondary winding, short circuit 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 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.

2. The substation CT secondary load testing device of claim 1, wherein: the current range output by the current output end is 0-20A.

3. The substation CT secondary load testing device of claim 1, wherein: 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 substation CT secondary load testing device of claim 1, wherein: the analog addition area is provided with a power supply, and the power supply is 220V alternating current.

5. The substation CT secondary load testing device of claim 4, wherein: and the power supply is provided with a leakage protection switch.

6. The substation CT secondary load testing device of claim 4, wherein: the power supply provides power for the indicator light.

7. The substation CT secondary load testing device of claim 1, wherein: after the short circuit switch is closed, the secondary winding is in short circuit, and the indicator light is lighted.

8. The substation CT secondary load testing device of claim 1, wherein: the short circuit switch is an air switch.

9. The substation CT secondary load testing device of claim 1, wherein: the device body is provided with a socket.

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