CN215219127U - Portable protection device outlet contact monitor - Google Patents

Abstract

The utility model relates to the technical field of debugging of power system protection devices, in particular to a portable protection device outlet contact monitor; the ship-shaped switch is connected with at least one LED lamp bead, the LED lamp bead is connected with a self-holding relay, the self-holding relay is connected with a first wiring end, the first wiring end is connected with a first wiring terminal, an outlet contact wiring public end is formed at the connection point of the ship-shaped switch and the LED lamp bead, and the outlet contact wiring public end is connected with a second wiring terminal; the utility model discloses the use of protection device outlet contact monitor is more convenient than traditional mode in manpower, material, protection device debugging efficiency and accuracy, and easy operation has practiced thrift the manpower, has improved test efficiency and accuracy.

Description

Portable protection device outlet contact monitor

Technical Field

The utility model relates to an electric power system protection device debugs technical field, specifically is a portable protection device outlet contact monitor.

Background

In the debugging process of the single protection device of the transformer substation, whether an output contact of an outlet trip circuit is correctly closed needs to be monitored after the protection device acts. The traditional debugging mode is that a debugging person adds the simulation fault amount to the protection device by using a relay protection tester in front of the protection screen to enable the protection device to act. Meanwhile, another debugging personnel needs to find the terminal strip where the outlet contact is located in advance after the protection screen, and the universal meter is used for connecting the outlet contact. And (4) the debugging personnel adds the amount before the screen and the debugging personnel observes whether the universal meter displays the contact connection or not after the screen. The debugging mode needs at least two persons to complete monomer debugging in a matching mode, and if the protection is one type, a plurality of outlets are simultaneously arranged, repeated tests are needed, and the universal meters are used for measuring the contacts one by one. If the outlets have time matching relationship after protection action, the action has the requirement of sequence. It is difficult to monitor the operation of a plurality of contacts simultaneously by using the multimeter measurement method.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable protection device outlet contact monitor to solve the problem that current method debugging efficiency and accuracy that above-mentioned background art provided are low.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a portable protection device outlet contact monitor, includes wooden box and fixed battery and the ship type switch that sets up in wooden box, ship type switch is connected with at least one LED lamp pearl, LED lamp pearl is connected with a self-sustaining relay, the self-sustaining relay is connected with first wiring end, first wiring end is connected with first terminal, ship type switch and LED lamp pearl tie point form outlet contact wiring common port, outlet contact wiring common port is connected with a second terminal.

Preferably, the number of the LED lamp beads, the number of the self-holding relays and the number of the first binding posts are eight, and the eight LED lamp beads are connected with the outlet contact wiring public end.

Further, the wood box is internally divided into an upper layer and a lower layer, the lower layer is a groove box base, the battery and the ship-shaped switch are arranged in the groove box base, the eight LED lamp beads and the eight self-holding relays are arranged in the upper layer groove, and the eight LED lamp beads, the eight first binding posts and the second binding posts are all exposed out of the wood box.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the use of protection device outlet contact monitor is more convenient than traditional mode in manpower, material, protection device debugging efficiency and accuracy, and easy operation has practiced thrift the manpower, has improved test efficiency and accuracy. The portable protection device outlet contact monitor has the greatest advantages of low manufacturing cost and strong operability, and obviously improves the construction efficiency of single debugging (especially multi-outlet main transformer protection and bus protection) of the protection device; the applicability is strong, the quality defect caused by human factors is reduced, and the requirement of construction process standardization in the power industry is met.

Drawings

Fig. 1 is a schematic circuit diagram of an outlet contact monitor of a portable protection device according to the present invention;

fig. 2 is a schematic view of a three-dimensional structure of the outlet contact monitor of the portable protection device of the present invention.

In the figure: 1. wooden box, 2, LED lamp pearl, 3, second terminal, 4, first terminal, 11, battery, 12, ship type switch, 13, exit contact wiring public end, 14, self-sustaining relay, 15, first wiring end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a portable protection device outlet contact monitor utilizes group battery, LED lamp pearl, binding post, self-sustaining auxiliary relay, boat type switch, simple and easy wooden box to establish the circuit, establishes ties the test wire for the protection device contact and inserts in this instrument. Ship type switch and LED lamp pearl tie point form exit contact public end of working a telephone switchboard, and exit contact public end of working a telephone switchboard is connected with a second terminal 3, and LED lamp pearl, self-sustaining relay, first terminal 15 and first terminal 4 are eight, eight LED lamp pearls all are connected with exit contact public end of working a telephone switchboard 13.

The utility model discloses it is two-layer about divideing into wood box 1 inside, the lower floor is the groove box base, and battery 11 and ship type switch 12 all set up in the groove box base, and eight LED lamp pearls 2 all set up at the upper strata inslot and eight LED lamp pearls and eight first terminal 3 and a second terminal all spill outside the wood box with eight self-sustaining relay 13. Eight first terminals adopt M4 pure copper wire terminal and eight LED lamp balls to correspond and be connected, divide two rows of corresponding designs to adopt red in order to distinguish the second terminal that adopts black with eight first terminals, carry out the numbering after LED lamp ball and terminal one-to-one.

The utility model discloses the part and the material that protection device export contact monitor adopted are: one wooden box, with a format of 19.5 x 8.5 x 7cm, was used as a carrier for integrating the portable outlet monitoring instrument circuit; the M4 pure copper binding post is eight red, one is black, the red is eight outlet contact terminals, namely a first terminal, and the black is an outlet contact terminal public end; eight 9V light-emitting diodes (namely LED lamp beads, 9V, 3mm and red) with lines and seats are used as tools for displaying conduction; eight self-holding relays adopt Songle SRD (T73) JQC-3FF.5 relays (9V,5 pins, 10A) to be used as lamplight self-holding; a battery (9V) as a loop power supply; the battery button (9V, 12cm line length) is used for connecting the battery and the loop, so that the battery is convenient to replace; a boat-type switch (15 x 21mm) for switching the circuit on and off.

Taking the outlet matrix calibration of the 220kV main transformer protection device as an example (see table 1), one side of all outlet nodes on the outlet terminal row of the main transformer protection device is connected in short, and the outlet nodes are connected into the black binding post of the outlet calibration device. The other side of the node is sequentially connected with a red first binding post represented by B1-B8. When corresponding protection is verified, corresponding outlet action is performed, and the outlet verification device is turned on and kept corresponding to the red light. If the high-current-recovery 1-stage action is performed, the T1 time-limit tripping high-voltage side bus-bar circuit breaker, the T2 time-limit tripping high-voltage side circuit breaker and the corresponding outlet of the side act, and the red light of the outlet checking device is turned on and kept according to time limit.

TABLE 1 main transformer protector parameter constant value

By using the portable protection device outlet contact monitor, one fault can be simulated to ensure the protection action, and whether the eight outlets act or not and the action sequence can be simultaneously monitored. If the main transformer protection outlet is provided with a main transformer circuit breaker outlet at a high jump side, a middle voltage side and a low voltage side, and is provided with a bus-coupled (segmented) circuit breaker outlet at the high jump side, the middle voltage side and the low voltage side and eight outlets for releasing the double-voltage locking and starting failure. Different protection requires different outlets and different outlet sequences. The portable protection device can be used for simultaneously monitoring the outlet conditions of the eight ways, and the actions of the actions, the non-actions of the actions and the correctness of the action sequence are clear at a glance. For example, when the portable protector is applied to debugging a single bus differential protector in a 220kV double-bus main connection mode, outlets of a bus coupler, a plurality of branches hung on a bus 1 and a plurality of branches hung on a bus 2 can be connected to the portable protector outlet contact monitor. Therefore, if 1 female fault is simulated, the action of the female connection outlet can be clearly seen, then 1 female branch outlet contact acts, and 2 female branch outlet contacts do not act. Whether the protection export logic is correct can be clearly verified.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (3)

1. A portable protection device outlet contact monitor, characterized in that: including wooden box (1) and fixed battery (11) and the ship type switch (12) of setting in wooden box (1), ship type switch (12) are connected with at least one LED lamp pearl (2), LED lamp pearl (12) are connected with a self-sustaining relay (14), self-sustaining relay (14) are connected with first wiring end (15), first wiring end (15) are connected with first terminal (4), ship type switch (12) form exit connection wiring common port (13) with LED lamp pearl (2) tie point, exit connection wiring common port (13) are connected with a second terminal (3).

2. A portable protective device outlet contact monitor according to claim 1, wherein: LED lamp pearl (2), self-sustaining relay (14) and first terminal (4) are eight, eight LED lamp pearls are all (12) and are connected with outlet contact wiring public end (13).

3. A portable protective device outlet contact monitor according to claim 2, wherein: the wooden box (1) is internally divided into an upper layer and a lower layer, the lower layer is a groove box base, the battery (11) and the ship-shaped switch (12) are arranged in the groove box base, the eight LED lamp beads (2) and the eight self-holding relays (14) are arranged in the upper layer groove, and the eight LED lamp beads (2) and the eight first binding posts (4) and the second binding post (3) are exposed out of the wooden box.

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