CN216051921U

CN216051921U - Flashover under-voltage alarm device

Info

Publication number: CN216051921U
Application number: CN202122147729.XU
Authority: CN
Inventors: 史健巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-15
Anticipated expiration: 2031-09-08

Abstract

The utility model provides a flashover undervoltage alarm device, which consists of two monitoring systems and comprises: the distribution box body and the distribution box internally comprise a circuit breaker, a starting button, an N22E series contactor, an intermediate relay, an indicator light, a buzzer, a panel switch and an undervoltage release. The N22E series contactor and the intermediate relay both use an artificial simulation device power supply product with higher requirement on voltage precision as a main body, and are connected with an alarm device through normally open contacts, normally closed contacts and coils. When the power supply voltage fluctuates and flashover is realized, the coil of the undervoltage release is undervoltage, so that the action mechanism of the undervoltage release touches the panel switch to send out an alarm, and the staff is reminded at the first time. The flashover undervoltage alarm device can monitor flashover undervoltage faults of a single-circuit power supply circuit and can also monitor flashover undervoltage faults of a double-circuit power supply circuit.

Description

Flashover under-voltage alarm device

Technical Field

The utility model relates to the technical field of power supply protection, in particular to a flashover undervoltage alarm device.

Background

At present, along with rapid development of scientific technology, electrical equipment is more and more precise, and higher requirements are put forward on power supply quality. However, due to thunderstorm weather or operation reasons of a superior power station, power grid voltage fluctuation (flashover) can occur, so that power failure of user equipment is caused, and workers can hardly find the power failure of the user equipment and recover power transmission at the first time, so that fault handling time is delayed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to provide a safe, stable and reliable flashover and undervoltage alarm device.

The utility model provides a flashover undervoltage alarm device, which consists of a first power supply alarm system and a second power supply alarm system, and comprises: the distribution box body and contain 2 circuit breakers QF1, QF2 in the distribution box body, 2 start button SB1, SB2, 4N 22E series contactor KM1, KM2, KM3, KM4, 2 auxiliary relay KF1, KF2, 2 pilot lamps HL1, HL2, 2 bee calling organ HA1, HA2, 2 panel switches K1, K2, 2 undervoltage trippers. Breaker QF1, QF2 can cut off respectively, put through first power, second power alarm system, start button SB1, SB2 can start first power, second power alarm system respectively, N22E series contactor KM1, KM2, KM3, KM4 accessible normally open contact, normally closed contact, coil, switch-on, the disconnection circuit, wherein N22E series contactor contains first power KM1 normally open contact, normally closed contact and coil, first power KM3 normally open contact, normally closed contact and coil, second power KM2 normally open contact, normally closed contact and coil, second power KM4 normally open contact, normally closed contact and coil, intermediate relay KF1, KF2 can enlarge the intermediate signal of two power respectively, contain the normally open contact, normally closed contact and coil of first power KF1 and second power KF2, panel K1, K2 can be used for switching on the two-way buzzer HA1 respectively, The HA2 power, the undervoltage release includes the undervoltage release coil of the power of the first way, the undervoltage release coil of second way power, and when mains voltage declined, the undervoltage release coil lost electricity, and undervoltage release actuating mechanism moved rapidly and pops out to touch panel switch K1, K2 move, pilot lamp HL1, HL2 all fix on the block terminal chamber door, can show power of the first way, second way power supply circuit trouble respectively, and the pilot lamp is often bright when the undervoltage, bee calling organ HA1, HA2 all fix on the block terminal chamber door, can send out alarm sound to the voltage fluctuation that power of the first way, second way power appear respectively.

Furthermore, the N22E series contactor and the intermediate relay both use an artificial simulation equipment power supply product with high voltage precision requirement as a main body, and are connected with an alarm device through normally open contacts, normally closed contacts and coils.

Furthermore, no matter any coil of the N22E series contactor and the intermediate relay is undervoltage, the panel switch can be touched through the undervoltage release actuating mechanism, and the indicating lamp is normally on and gives an alarm.

Furthermore, the flashover undervoltage alarm device can monitor flashover undervoltage faults of a single-circuit power supply circuit and flashover undervoltage faults of a double-circuit power supply circuit.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 shows a schematic diagram of a first power supply of an flashover alarm device.

Fig. 2 shows a schematic diagram of a second power supply of the flashover alarm device.

Fig. 3 shows a flashover alarm device case.

Labeled in figure 1:

1 breaker QF1

2 start button SB1

31 contactor KM1 coil

32 contactor KM1 normally open contact

33 contactor KM1 normally closed contact

41 contactor KM3 coil

Normally open contact of 42 contactor KM3

43 contactor KM3 normally closed contact

51 intermediate relay KF1 coil

Normally open contact of 52 intermediate relay KF1

Normally closed contact of 53 intermediate relay KF1

6 under-voltage release coil

7 panel switch K1

8 indicator lamp HL1

9 buzzer HA1

Detailed Description

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

The embodiment of the utility model provides a flashover and undervoltage alarm device which is composed of two monitoring systems, as shown in figures 1 and 2, a distribution box body is internally provided with: the circuit breaker, start button, N22E series contactor, auxiliary relay, pilot lamp, bee calling organ, panel switch, undervoltage release constitute.

Under the normal power supply state of first way power, close QF1 circuit breaker 1, press SB1 start button 2, KM1 contactor coil 31, KM3 contactor coil 41, KF1 intermediate relay coil 51, under-voltage release 1 coil 6 gets electricity, KM1 contactor normally open contact 32 simultaneously, KM3 contactor normally open contact 42, KF1 intermediate relay normally open contact 52 is closed, the switch-on circuit, form the auto-lock, KM1 contactor normally closed contact 33, KM3 contactor normally closed contact 43, KF1 intermediate relay normally closed contact 53 opens, K1 panel switch 7 is in the normally open position. When the power supply is subjected to undervoltage fluctuation, no matter any one of the KM1 contactor coil 31, the KM3 contactor coil 41 and the KF1 intermediate relay coil 51 is undervoltage, the KM1 contactor normally-open contact 32, the KM3 contactor normally-open contact 42 and the KF1 intermediate relay normally-open contact 52 are disconnected, and the coil 6 of the undervoltage release 1 is de-energized, so that the undervoltage release actuating mechanism triggers the K1 panel switch 7, the K1 panel switch 7 is closed, the HL1 indicator lamp 8 and the HA buzzer 9 are switched on, and the alarm effect is achieved; the working principle of the second power supply is the same as that of the first power supply.

The utility model has clear structure, convenient installation, lower cost and high reliability, and can be widely applied to the power supply system circuit. Contactor, auxiliary relay all select for use to require higher imitative artifical analog device power supply product to voltage precision, when guaranteeing safety, the practicality is strong. Through installing this device, can effectively, accurately send alarm signal, the alarm signal that the staff accessible sent arrives the scene very first time, seeks, analyzes the reason, has shortened fault handling and recovery time, has reduced the influence that the power failure caused user and experiment.

In one aspect of the embodiment of the utility model, the N22E series contactor and the intermediate relay both use an artificial simulation device power supply product with high voltage precision requirement as a main body, and the alarm device is switched on through the normally open contact, the normally closed contact and the coil, so that when the power supply voltage fluctuation flashover and undervoltage, an alarm is given, and the staff is reminded at the first time.

In one aspect of the embodiment of the utility model, no matter any coil of the N22E series contactor and the intermediate relay is undervoltage, the panel switch can be touched through the undervoltage release actuating mechanism, so that the indicating lamp is normally on and gives an alarm.

In one aspect of the embodiment of the utility model, the flashover undervoltage alarm device can monitor both flashover undervoltage faults of a single-circuit power supply circuit and flashover undervoltage faults of a double-circuit power supply circuit.

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

Claims

1. The utility model provides a flashover undervoltage alarm device which characterized in that includes:

the distribution box comprises a distribution box body and 2 breakers QF1, QF2, 2 starting buttons SB1, SB2, 4N 22E series contactors KM1, KM2, KM3, KM4, 2 intermediate relays KF1, KF2, 2 indicator lamps HL1 and HL2, 2 buzzers HA1 and HA2, 2 panel switches K1 and K2 and 2 undervoltage release devices, wherein the distribution box body is internally provided with the 2 breakers QF1, QF 2; the circuit breakers QF1 and QF2 can respectively cut off and connect the first power supply and the second power supply alarm system, the start buttons SB1 and SB2 can respectively start the first power supply and the second power supply alarm system, the N22E series contactors KM1, KM2, KM3 and KM4 can respectively switch on and off the circuits by a normally open contact, a normally closed contact and a coil, wherein the N22E series contactor comprises a normally open contact, a normally closed contact and a coil of the first power supply KM1, a normally open contact, a normally closed contact and a coil of the first power supply KM3, a normally open contact, a normally closed contact and a coil of the second power supply KM2, a normally closed contact and a coil of the second power supply KM4, a normally open contact, a normally closed contact and a coil, the intermediate relays KF1 and KF2 can respectively expand the intermediate signals of the two power supplies, a normally open contact, a normally closed contact and a coil of the first power supply KF1 and the second power supply KF2 are included, and the panel switches K1 and K2 can respectively connect the two buzzers HA1 to connect the first power supply and the second power supply alarm system The HA2 power, the undervoltage release includes the undervoltage release coil of the power of the first way, the undervoltage release coil of second way power, and when mains voltage declined, the undervoltage release coil lost electricity, and undervoltage release actuating mechanism moved rapidly and pops out to touch panel switch K1, K2 move, pilot lamp HL1, HL2 all fix on the block terminal chamber door, can show power of the first way, second way power supply circuit trouble respectively, and the pilot lamp is often bright when the undervoltage, bee calling organ HA1, HA2 all fix on the block terminal chamber door, can send out alarm sound to the voltage fluctuation that power of the first way, second way power appear respectively.