CN217467101U

CN217467101U - Generator anti-tripping loop detection auxiliary device

Info

Publication number: CN217467101U
Application number: CN202221434984.0U
Authority: CN
Inventors: 吴杰; 肖遥; 丁晖庆; 邓亚; 陈政; 张娟勇; 邓耀
Original assignee: Hongjiang Hydroelectric Power Plant Huaihua Yuanjiang Electric Power Development Co ltd
Current assignee: Hongjiang Hydroelectric Power Plant Huaihua Yuanjiang Electric Power Development Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-20
Anticipated expiration: 2032-06-09

Abstract

The utility model provides a generator is prevented jumping return circuit and is detected auxiliary device through setting up combined floodgate button and separating brake button, and the break-make electricity condition of combined floodgate node and separating brake node of circuit breaker in the control generator protection device operation box realizes preventing jumping the return circuit and detects. By the aid of the auxiliary device, the operations of switching on and off of the generator circuit breaker, keeping on a switch-on order for a long time, protecting the adding amount and the like can be independently completed by one person, so that the working efficiency is greatly improved; in addition, the work of the closing contact of the artificial short circuit breaker is finished by the device, the probability of human error is reduced, the reliability and no shake of the contact short circuit are ensured, the phenomenon of frequent opening and closing of the breaker can not occur, and the service life of the generator breaker is prolonged.

Description

Generator anti-tripping loop detection auxiliary device

Technical Field

The utility model relates to a generator safety technical field especially relates to a loop detection auxiliary device is prevented jumping by generator.

Background

In the daily detection process of the anti-tripping protection loop of the generator, multiple persons are often needed to operate, one person is in short circuit with the closing loop of the breaker of the generator, the breaker of the generator is always in a closing state, and one person is added with fault quantity to enable protection to act. In the detection process, multiple persons are required to perform matching operation on the front and back surfaces of the protective screen cabinet and the position of the generator breaker, so that the test is often unsuccessful, and the detection efficiency is low; equipment damage caused by short-circuit contact errors and a larger risk coefficient are caused; meanwhile, a circuit is switched on and switched off frequently due to the fact that the circuit breaker is in a short circuit and slightly shakes, the service life of the generator circuit breaker is influenced, equipment is easily lost, and cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a generator is prevented jumping return circuit and is detected auxiliary device aims at providing a convenient to use is swift, safe and reliable, the protection that detection efficiency is high is prevented jumping return circuit and is detected auxiliary device.

Therefore, a first objective of the present invention is to provide an anti-trip loop detection auxiliary device for a generator, which is connected to an operation box of a generator protection device of the generator, including: a closing button and an opening button; the switching-on button is connected to a switching-on node of a circuit breaker in the generator protection device operation box in parallel, and the switching-off button is connected to a switching-off node of the circuit breaker in the generator protection device operation box in parallel.

The switching-on button comprises a first switching-on button SB1 and a second switching-on button SB 2;

the first closing button SB1 is a generator breaker on-site closing detection button and is connected to two ends of a closing node IN1 of a generator outlet breaker IN an operation box of the generator protection device; the second closing button SB2 is a long-term closing detection button of the generator breaker and is arranged in parallel with the first closing button SB 1.

The opening button SB3 is a local opening detection button of the generator breaker and is connected to two ends of an opening node IN2 of the generator outlet breaker IN the generator protection device operation box.

The second closing button SB2 and the opening button SB3 are self-resetting buttons, and the first closing button SB1 is a self-locking button.

Be different from prior art, the utility model provides a generator is prevented jumping return circuit and is detected auxiliary device through setting up combined floodgate button and separating brake button, controls the break-make electricity condition of combined floodgate node and the separating brake node of circuit breaker in the generator protection device operation panel, realizes preventing jumping the return circuit and detects. By the aid of the auxiliary device, the operations of switching on and off of the generator circuit breaker, keeping on a switch-on order for a long time, protecting the adding amount and the like can be independently completed by one person, so that the working efficiency is greatly improved; in addition, the work of the closing contact of the artificial short circuit breaker is finished by the device, the probability of human error is reduced, the reliability and no shake of the contact short circuit are ensured, the phenomenon of frequent opening and closing of the breaker can not occur, and the service life of the generator breaker is prolonged.

Drawings

The present invention and/or additional aspects and advantages will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of the anti-trip loop detection auxiliary device for a generator provided by the present invention.

Fig. 2 is a schematic diagram of a circuit connection structure of the anti-trip circuit detection auxiliary device for a generator.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Fig. 1 is a schematic structural diagram of an anti-trip loop detection auxiliary device for a generator according to an embodiment of the present invention. The device 1 is connected to a generator protection device operating box 4 of a generator 5, and comprises: a closing button 2 and an opening button SB 3; the closing button 2 is connected in parallel to a closing node of a circuit breaker in an operation box of the generator protection device, and the opening button SB3 is connected in parallel to an opening node of the circuit breaker in the operation box of the generator protection device.

As shown in fig. 2, the closing button 2 includes a first closing button SB1 and a second closing button SB 2;

the first closing button SB1 is a generator breaker on-site closing detection button and is connected to two ends of a closing node IN1 of a generator outlet breaker IN an operation box of the generator protection device; the second closing button SB2 is a long-term closing detection button of the generator circuit breaker, and is arranged in parallel with the first closing button SB 1.

The second closing button SB2 and the opening button SB3 are self-resetting buttons, and the first closing button SB1 is a self-locking button. The utility model discloses in relevant auto-lock button indicates the button that can keep the closure state after the closure, and from the reset button, then is in the closed back of artificial control, if break away from artificial control, the state changes the button of disconnection from the closure, presses the closure promptly, and the release is bounced.

The protection of the generator plays a decisive role in ensuring the normal work and the power quality of a power system by the safe operation of the generator, and meanwhile, the generator is also very expensive electrical equipment, so that a relay protection device with perfect performance is required to be arranged aiming at various faults and abnormal working states. The generator circuit breaker is a switching device capable of closing, carrying and opening/closing a current under a normal circuit condition and closing, carrying and opening/closing a current under an abnormal circuit condition within a prescribed time. It is also called automatic switch, it is a kind of electric appliance which not only has the function of manual switch, but also can automatically implement voltage-loss, undervoltage, overload and short-circuit protection. The invention aims to establish an anti-tripping loop of a circuit breaker, and arrange a switch for controlling opening and closing at a position far away from a generator device, so that the problems that the detection efficiency is low, multiple persons are required to perform cooperative operation on the front and back of a protective screen cabinet and the generator circuit breaker, the risk coefficient is high, the device is damaged due to short-circuit contact errors, the circuit breaker is frequently opened and closed due to manual short-circuit closing loop, and the service life of the generator circuit breaker is influenced due to slight jitter can be avoided.

IN the utility model, the simulation of the circuit breaker on-site closing electrical loop of the generator protection device operation box is realized by pressing the second closing button SB2 connected to the circuit breaker closing node IN1 of the generator protection device operation box; the simulation of the circuit breaker on-site opening electric loop of the generator protection device operation box is realized by pressing an opening button of a circuit breaker opening node IN2 connected to the generator protection device operation box; when the second closing button SB2 and the opening button SB2 are pressed down, the withdrawing force will bounce; the simulation of the long-term circuit-closing electric loop of the circuit breaker of the generator protection device operation box is realized by pressing down a first closing button SB1 connected to a circuit breaker closing node IN1 of the generator protection device operation box; the first closing button SB1 is a self-locking button, keeps a closed state after being pressed down, and can simulate the long-term closing of the circuit breaker; when the simple anti-tripping loop detection auxiliary device for protection is used for anti-tripping loop detection, the operations of switching on and off of the generator circuit breaker, keeping on a switch-on order for a long time, protection dosage and the like can be independently finished only by one person, and the working efficiency is greatly improved. In addition, the work of the closing contact of the artificial short circuit breaker is finished by the device, the probability of human error is reduced, the reliability and no shake of the contact short circuit are ensured, the phenomenon of frequent opening and closing of the breaker can not occur, and the service life of the generator breaker is prolonged.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a generator is prevented jumping return circuit and is detected auxiliary device, connects in the generator protection device control box of generator which characterized in that includes: a closing button and an opening button; the switching-on button is connected in parallel to a switching-on node of a circuit breaker in the generator protection device operation box, and the switching-off button is connected in parallel to a switching-off node of the circuit breaker in the generator protection device operation box.

2. The generator anti-tripping loop detection auxiliary device is characterized in that the closing buttons comprise a first closing button SB1 and a second closing button SB 2;

the first closing button SB1 is a generator circuit breaker on-site closing detection button and is connected to two ends of a closing node IN1 of a generator outlet circuit breaker IN an operation box of the generator protection device; the second closing button SB2 is a long-term closing detection button of the generator breaker and is arranged in parallel with the first closing button SB 1.

3. The generator anti-tripping loop detection auxiliary device as claimed IN claim 1, wherein the brake-off button SB3 is a generator breaker local brake-off detection button connected to two ends of a brake-off node IN2 of a generator outlet breaker IN a generator protection device operation box.

4. The generator anti-tripping loop detection auxiliary device is characterized in that the second closing button SB2 and the opening button SB3 are self-resetting buttons, and the first closing button SB1 is a self-locking button.