CN218241697U

CN218241697U - 35kV intelligent phase selection vacuum circuit breaker

Info

Publication number: CN218241697U
Application number: CN202222593007.1U
Authority: CN
Inventors: 荣新雷
Original assignee: Real Intelligent Control Equipment Wuxi Co ltd
Current assignee: Real Intelligent Control Equipment Wuxi Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-06
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a phase selection vacuum circuit breaker belongs to phase selection vacuum circuit breaker technical field, concretely relates to 35kV intelligence phase selection vacuum circuit breaker, the utility model discloses this internal voltage monitoring module that is equipped with of vacuum circuit breaker, voltage monitoring module includes: the alarm circuit comprises a power supply circuit, a detection circuit connected with the power supply circuit and an alarm circuit connected with the detection circuit; the utility model discloses when 35kV intelligence phase selection vacuum circuit breaker during operation, carry out the operating voltage size of inputing this moment through power supply circuit to gather the magnitude of voltage this moment through detection module, remind the staff through alarm circuit according to the magnitude of voltage at last, thereby the utility model discloses can carry out real-time detection operating voltage, prevent to appear the heavy stroke that the voltage is too high to lead to and pass, so that vacuum circuit breaker's harm, thereby can protect vacuum circuit breaker and improve life.

Description

35kV intelligent phase selection vacuum circuit breaker

Technical Field

The utility model belongs to the technical field of, concretely relates to 35kV intelligence phase selection vacuum circuit breaker.

Background

The working principle of the vacuum circuit breaker is as follows: when the moving contact and the static contact of the vacuum circuit breaker are switched off under the action of the operating mechanism, electric arcs are generated between the contacts, steam volatilizes from the surfaces of the contacts at high temperature, a magnetic field is generated when current passes through the magnetic field due to the special shape of the contacts, the electric arcs rapidly move along the tangential direction of the surfaces of the contacts under the action of the magnetic field, partial metal steam is condensed on a metal cylinder (shielding cover), the electric arcs are extinguished when the electric arcs naturally pass through zero, and the medium strength between the contacts is rapidly recovered.

In the prior art, a phase selection switching technology, also called a synchronous closing technology, is mostly adopted for a vacuum circuit breaker. The intelligent control technology is a 35kV intelligent phase selection vacuum circuit breaker intelligent control technology which is used for switching a moving contact and a static contact of a circuit breaker at a specified phase angle of a system voltage waveform under the control of a control system, so that power equipment such as a no-load transformer, a reactor, a capacitor, a no-load line and the like is put into (quit) a power system under the condition of minimum impact on the equipment and the system; when the vacuum circuit breaker in the prior art works, the random closing mode inevitably generates electromagnetic transient effects such as overvoltage, inrush current and the like when the power primary equipment is switched, so that the insulation and the service life of the equipment are influenced, and even misoperation of relay protection is induced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a 35kV intelligence phase selection vacuum circuit breaker solves above-mentioned problem.

The technical scheme is as follows: a35 kV intelligence phase selection vacuum circuit breaker includes: a vacuum circuit breaker body;

the vacuum circuit breaker body is provided with a voltage monitoring module;

the voltage monitoring module includes: the alarm circuit comprises a power supply circuit, a detection circuit connected with the power supply circuit, and an alarm circuit connected with the detection circuit.

In a further embodiment, the alarm circuit comprises: the audio amplifier comprises an integrated circuit U1, a resistor R1, a capacitor C2, a resistor R3, a resistor R4, a triode Q1, a triode Q2, a triode Q3, an audio device U5 and a loudspeaker LS1;

pin 6 of integrated circuit U1 is connected with pin 7, and pin 7 with the one end of resistance R1 is connected, pin 6 with the one end of electric capacity C1 is connected, pin 4 of integrated circuit U1 is connected with pin 8, and simultaneously with the other end of resistance R1 and pin 4 of audio amplifier U5 are connected, pin 1 of integrated circuit U1 simultaneously with the other end of electric capacity C1 and the one end of litigation electric capacity C2 are connected, pin 5 of integrated circuit U1 with the other end of electric capacity C2 is connected, pin 2 of integrated circuit U1 input signal, pin 3 of integrated circuit U1 with the one end of resistance R2 is connected, base of triode Q2 with the other end of resistance R2 is connected, pin 5 of audio amplifier U5 with the collecting electrode of triode Q2 is connected, pin 1 of audio amplifier U5 with the one end of resistance R3 is connected, pin 3 of audio amplifier U5 with the other end of resistance R3 with the other end of LS 2 is connected the base of audio amplifier U5 and the collecting electrode of triode Q2, the other end of audio amplifier U5 is connected with the triode 3 of the emitter Q1 and the emitter of the triode 3, the resistor Q2 is connected with the emitter of the resistor Q1 and the emitter of the resistor Q2, the emitter of the triode Q2, the resistor Q1 is connected with the emitter of the triode 3 of the loudspeaker, the resistor U5 is connected with the emitter of the triode 3 and the emitter of the loudspeaker, the triode 3 is connected with the emitter of the resistor Q1 and the triode 3 of the loudspeaker, the triode 3 is connected simultaneously, the emitter of the triode 3 is connected with the emitter of the triode 3 is connected with the triode 3 of the loudspeaker.

In a further embodiment, the integrated circuit U1 has a model NE555.

In a further embodiment, the detection circuit comprises: the circuit comprises a resistor R6, a resistor R7, a resistor R8, a resistor R9 and an amplifier U4A;

amplifier U4A's inverting input simultaneously with resistance R6's one end with resistance R7's one end is connected, amplifier U4A's in-phase input with resistance R9's the other end is connected and ground connection, amplifier U4A's negative voltage end simultaneously with resistance R7's the other end with resistance R9's the other end is connected, amplifier U4A's No. 1 pin with resistance R8's the other end is connected and output signal, amplifier U4A's No. 8 pin with working voltage is connected and is input to resistance R8's the other end.

Has the advantages that: the utility model discloses a phase selection vacuum circuit breaker belongs to phase selection vacuum circuit breaker technical field, concretely relates to 35kV intelligence phase selection vacuum circuit breaker, the utility model discloses this internal voltage monitoring module that is equipped with of vacuum circuit breaker, voltage monitoring module includes: the alarm circuit comprises a power supply circuit, a detection circuit connected with the power supply circuit and an alarm circuit connected with the detection circuit; the utility model discloses when 35kV intelligence phase selection vacuum circuit breaker during operation, carry out the operating voltage size of inputing this moment through power supply circuit to gather the magnitude of voltage this moment through detection module, remind the staff through alarm circuit according to the magnitude of voltage at last, thereby the utility model discloses can carry out real-time detection operating voltage, prevent to appear the heavy stroke that the voltage is too high to lead to and pass, so that vacuum circuit breaker's harm, thereby can protect vacuum circuit breaker and improve life.

Drawings

Fig. 1 is a schematic diagram of the alarm circuit of the present invention.

Fig. 2 is a schematic diagram of the detection circuit of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

A 35kV intelligent phase selection vacuum circuit breaker, comprising: a vacuum circuit breaker body;

the vacuum circuit breaker body is provided with a voltage monitoring module;

the voltage monitoring module includes: the alarm circuit comprises a power circuit, a detection circuit connected with the power circuit, and an alarm circuit connected with the detection circuit.

In one embodiment, as shown in fig. 1, the alarm circuit includes: the device comprises an integrated circuit U1, a resistor R1, a capacitor C2, a resistor R3, a resistor R4, a triode Q1, a triode Q2, a triode Q3, an audio device U5 and a loudspeaker LS1;

pin 6 of the integrated circuit U1 is connected to pin 7, pin 7 is connected to one end of the resistor R1, pin 6 is connected to one end of the capacitor C1, pin 4 of the integrated circuit U1 is connected to pin 8 and to the other end of the resistor R1 and pin 4 of the audio unit U5, pin 1 of the integrated circuit U1 is connected to the other end of the capacitor C1 and one end of the litigation capacitor C2, pin 5 of the integrated circuit U1 is connected to the other end of the capacitor C2, pin 2 of the integrated circuit U1 inputs a signal, pin 3 of the integrated circuit U1 is connected to one end of the resistor R2, and the base of the transistor Q2 is connected to the other end of the resistor R2, no. 5 pin of audio amplifier U5 with triode Q2's collecting electrode is connected, audio amplifier U5's pin 1 with resistance R3's one end is connected, audio amplifier U5's pin 3 with resistance R3's the other end is connected, audio amplifier U5's pin 2 with triode Q3's base is connected, triode Q3's collecting electrode simultaneously with resistance R4's one end and triode Q1's base is connected, triode Q1's collecting electrode with speaker LS 1's one end is connected, resistance R4's the other end simultaneously with audio amplifier U5's pin 4 and triode Q1's incident pole are connected and input voltage, triode Q2's projecting pole simultaneously with electric capacity C2's one end, triode Q3's projecting pole and speaker LS 1's the other end is connected and input voltage.

In one embodiment, as shown in FIG. 1, the integrated circuit U1 is model NE555.

In one embodiment, as shown in fig. 2, the detection circuit includes: a resistor R6, a resistor R7, a resistor R8, a resistor R9 and an amplifier U4A;

The working principle is as follows: when the utility model discloses carry out the during operation, at first power supply circuit carries out the voltage of inputing this moment, and carry out input voltage signal value detection circuitry according to voltage, under the normal load condition, the voltage that is divided by resistance R6 and resistance R7 is the positive value, amplifier U4A's inverting input end voltage is zero, amplifier U4A's output is low, when output voltage signal is too big, the pressure drop on resistance R6 increases, the voltage value of amplifier U4A's inverting input end reduces, when the voltage value of amplifier U4A's inverting input end drops to 0V, amplifier U4A's output alarm signal;

alarm signal inputs to alarm circuit in, input through integrated circuit U1's No. 2 pin, integrated circuit U1 forms the trigger this moment, compare the signal size this moment, when the magnitude of voltage is too big in the signal, the high level is exported through integrated circuit U1's No. 3 pin, resistance R2 protects the input, triode Q2 saturation switches on this moment, in the signal input value audio frequency ware U5, alarm signal is sent in the work of audio frequency ware U5, triode Q1 and triode Q3 amplify the signal this moment, and then send out the alarm sound in the signal input value speaker LS1, remind the staff.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a 35kV intelligence phase selection vacuum circuit breaker which characterized in that includes:

a vacuum circuit breaker body;

the vacuum circuit breaker body is provided with a voltage monitoring module;

2. The 35kV intelligent phase selection vacuum circuit breaker according to claim 1,

the alarm circuit includes: the device comprises an integrated circuit U1, a resistor R1, a capacitor C2, a resistor R3, a resistor R4, a triode Q1, a triode Q2, a triode Q3, an audio device U5 and a loudspeaker LS1;

the pin 6 of the integrated circuit U1 is connected with the pin 7, the pin 7 is connected with one end of the resistor R1, the pin 6 is connected with one end of the capacitor C1, the pin 4 of the integrated circuit U1 is connected with the pin 8 and simultaneously connected with the other end of the resistor R1 and the pin 4 of the audio device U5, the pin 1 of the integrated circuit U1 is simultaneously connected with the other end of the capacitor C1 and one end of the capacitor C2, the pin 5 of the integrated circuit U1 is connected with the other end of the capacitor C2, the pin 2 of the integrated circuit U1 inputs signals, the pin 3 of the integrated circuit U1 is connected with one end of the resistor R2, the base of the triode Q2 is connected with the other end of the resistor R2, no. 5 pin of audio amplifier U5 with triode Q2's collecting electrode is connected, no. 1 pin of audio amplifier U5 with resistance R3's one end is connected, no. 3 pin of audio amplifier U5 with resistance R3's the other end is connected, no. 2 pin of audio amplifier U5 with triode Q3's base is connected, triode Q3's collecting electrode simultaneously with resistance R4's one end and triode Q1's base is connected, triode Q1's collecting electrode with speaker LS 1's one end is connected, resistance R4's the other end simultaneously with No. 4 pin of audio amplifier U5 and triode Q1's incident pole are connected and input voltage, triode Q2's projecting pole simultaneously with electric capacity C2's one end, triode Q3's projecting pole and speaker LS 1's the other end is connected and input voltage.

3. The 35kV intelligent phase-selection vacuum circuit breaker according to claim 2, wherein the integrated circuit U1 is NE555 in model.

4. The 35kV intelligent phase-selection vacuum circuit breaker according to claim 1,

the detection circuit includes: the circuit comprises a resistor R6, a resistor R7, a resistor R8, a resistor R9 and an amplifier U4A;