CN211014365U - A relay protection test line - Google Patents

Abstract

The utility model provides a relay protection test line. A relay protection test line includes an aviation plug and a metal plug, the metal plugs are respectively connected to the contact pairs of the aviation plug through wires, and the number of the metal plugs is equal to the number of the contact pairs of the aviation plug. The test line connector of the utility model is an aviation plug, which can be directly connected to the tested terminal, and the test terminal is directly connected to the relay protection tester through the metal plug, the connection method is simple and convenient, and the efficiency of the relay protection test is improved.

Description

A relay protection test line

technical field

The utility model relates to the field of relay protection, in particular to a relay protection test line.

Background technique

With the rise of smart grid, distribution automation terminal equipment has entered a stage of comprehensive application in various power grid companies across the country. At present, the control circuit, power circuit, and signal circuit of automation equipment such as automation terminals on distribution columns of China Southern Power Grid Corporation and automatic terminals of feeders in substations have all adopted aviation connectors since 2014, and standardized aviation plugs are used for transmission.

However, there is currently no relay protection test line developed based on aviation plugs on the market. During the relay protection test, it is necessary to wire the secondary terminal of the terminal, and the efficiency of the relay protection pre-test and regular inspection is low.

Utility model content

In order to overcome the above-mentioned background technology, the present utility model has no relay protection test line developed based on aviation plugs on the market. During the relay protection test, it is necessary to wire on the secondary terminal of the terminal, and the relay protection is pre-tested. To solve the problem of low detection efficiency, a relay protection test line is provided. The test line connector of the utility model is an aviation plug, which can be directly connected to the tested terminal, and the test terminal is directly connected to the relay protection tester through the metal plug, the connection method is simple and convenient, and the efficiency of the relay protection test is improved.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a relay protection test wire, comprising an aviation plug and a metal plug, the metal plugs are respectively connected to the contact pairs of the aviation plugs through wires, and the metal plugs The number is equal to the number of contact pairs of the aviation plug. In this way, this relay protection test line can be used in the relay protection test of automation equipment such as automation terminals on power grid distribution columns and feeder automation terminals in substations, etc. There are aviation connectors. When testing, connect the aviation plug in the relay protection test line to the end under test, and then insert the metal plug into the corresponding socket hole of the relay protection tester to carry out the test; The terminal blocks of the terminals are connected one by one, which greatly improves the efficiency of the relay protection test and inspection.

Further, a part of the wires close to the aviation plug is placed in an insulating sleeve, and the insulating sleeve is connected to the aviation plug through a stainless steel waterproof connector. In this way, wrap the wires into a bundle, and there will be no wire fights during the test. Leave a length at one end of the metal plug to separate the wires separately, so that they can be inserted into the corresponding insertion holes of the relay protection tester separately; A stainless steel waterproof connector is added at the connection between the sleeve and the aviation plug, which makes the connection more stable, will not corrode, and prolongs the service life of the device.

Further, the aviation plug includes a free-end aviation plug and a fixed aviation plug, the metal plug is connected to the contact pair of the free-end aviation plug through a wire, and the metal plug is connected to the fixed aviation plug through a wire. The contact pairs of the plug are connected in one-to-one correspondence. In this way, a free-end aviation plug and a fixed aviation plug are preset. When the aviation plug of the device to be tested is a fixed aviation plug, the test line is connected by a free-end aviation plug, and when the aviation plug of the device to be tested is a free-end aviation plug When using a plug, the test line is connected by a fixed aviation plug; it can meet different test requirements and be more flexible; each pin or jack on the aviation plug corresponds to a metal plug, so as to meet the test requirements.

Preferably, the aviation plug is a marble type aviation plug. In this way, the pinball type aviation plug does not need to be rotated, and only needs to perform linear motion to realize the functions of connection, separation and locking; because the relay protection test line needs to be connected and separated frequently; the use of the pinball type aviation plug can be faster. The realization of connection, separation, improve test efficiency.

Preferably, the wire is a fireproof insulated wire, and the wire is a single-core shielded wire. In this way, each pin or jack on the aviation plug corresponds to a metal plug, because the wire adopts a single-core shielded wire, so that the signal transmission of each wire is more stable, and will not interfere with each other or even serial numbers.

Preferably, the aviation plug is a 4-pin aviation plug, a 6-pin aviation plug or a 10-pin aviation plug. In this way, the three types of test lines used in the current relay protection test lines include power input and voltage loop test lines, protection current loop test lines, and control and signal loop test lines. The utility model is used to make these three conventional tests. When the cable is connected, the aviation plugs are 4-pin aviation plugs, 6-pin aviation plugs and 10-pin aviation plugs, and the corresponding metal plugs are not 4, 6 and 10; they can meet the general needs; of course, when the tested terminal aviation is N When the core is connected, the corresponding N-core aviation plug relay protection test line can be used.

Compared with the prior art, the beneficial effects are:

1. Connect the aviation plug in the relay protection test line to the terminal under test, and then insert the metal plug into the corresponding socket hole of the relay protection tester to carry out the test; there is no need to place one by one on the terminal block of the terminal The connection greatly improves the efficiency of the relay protection test and inspection.

2. The use of marble-type aviation plugs can achieve faster connection and separation, and improve test efficiency.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a schematic diagram of the internal circuit structure of the present invention.

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable to the artisan that certain well-known structures and descriptions thereof may be omitted from the drawings. The positional relationships described in the drawings are only for exemplary illustration, and should not be construed as a limitation on the present patent.

The same or similar symbols in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms "upper", "lower", "left", " The orientation or positional relationship indicated by "right", "long" and "short" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or element. It must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent. Understand the specific meanings of the above terms under specific circumstances.

Below by specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the present utility model is further described in detail:

Example 1

This embodiment provides a relay protection test line. As shown in FIG. 1 and FIG. 2 , it is a relay protection test line. The protection includes an aviation plug and a metal plug 3. The metal plug 3 is respectively connected to the contact pair of the aviation plug through a wire 4. The metal plug 3 The number is equal to the number of contact pairs of the aviation plug. The aviation plug protects the free-end aviation plug 1 and the fixed aviation plug 2, and the metal plug 3 is connected to the free-end aviation plug 1 and the fixed aviation plug 2 through wires 4 respectively; The fixed aviation plugs 2 are all pin-type aviation plugs, the free-end aviation plugs 1 and the fixed aviation plugs 2 are 4-core aviation plugs, and the contact between the metal plug 3 and the free-end aviation plug 1 is opposite. One-to-one connection, the metal plug 3 is connected to the contact of the fixed aviation plug 2 in a one-to-one correspondence. A part of the wire 4 close to the aviation plug is placed in an insulating sleeve 5, and the insulating sleeve 5 is connected to the aviation plug through a stainless steel waterproof connector.

During the working process, this embodiment can be used for relay protection testing of automation equipment such as automation terminals on power grid distribution columns and feeder automation terminals in substations, power supply circuits, and signal circuits. There are aviation connectors. When testing, connect the aviation plug in this embodiment to the end under test, because this embodiment presets the free end aviation plug 1 and the fixed aviation plug 2. When the aviation plug of the device under test is fixed When the aviation plug is used, the free-end aviation plug 1 in this embodiment is used for connection. When the aviation plug of the device to be tested is a free-end aviation plug, the fixed aviation plug 2 in this embodiment is used for connection, so that the number of pinholes is one. Connect one by one, and then insert the metal plugs 3 into the corresponding sockets of the relay protection tester one by one, and the test can be carried out; there is no need to connect one by one on the terminal block of the terminal, which greatly improves the reliability of the relay protection test. efficiency.

Example 2

This embodiment is similar to Embodiment 1, except that:

In this embodiment, the free end aviation plug 1 and the fixed aviation plug 2 are both 6-core aviation plugs.

Example 3

This embodiment is similar to Embodiment 1, except that:

In this embodiment, the free end aviation plug 1 and the fixed aviation plug 2 are both 10-pin aviation plugs.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims (6)

1. A relay protection test line which characterized in that: the metal plugs are connected with contact pairs of the aviation plugs through wires respectively, and the number of the metal plugs is equal to that of the contact pairs of the aviation plugs.

2. The relay protection test line according to claim 1, wherein: and a part of the lead close to the aviation plug is jointly arranged in an insulating sleeve, and the insulating sleeve is connected with the aviation plug through a stainless steel waterproof connector.

3. The relay protection test line according to claim 1 or 2, wherein: the aviation plug comprises a free end aviation plug and a fixed aviation plug, the metal plug is connected with the contact pair of the free end aviation plug in a one-to-one correspondence mode through a wire, and meanwhile the metal plug is connected with the contact pair of the fixed aviation plug in a one-to-one correspondence mode through a wire.

4. The relay protection test line according to claim 1, wherein: the aviation plug is a pin type aviation plug.

5. The relay protection test line according to claim 1, wherein: the wire is a fireproof insulated wire, and the wire is a single-core shielding wire.

6. The relay protection test line according to claim 3, wherein: the aviation plug is a 4-core aviation plug, a 6-core aviation plug or a 10-core aviation plug.

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