CN206557299U - A kind of emergency power supply Quick access device with decompression timing - Google Patents

Abstract

The utility model discloses an emergency power supply quick access device with pressure loss timing, which comprises: a box body; a riot-proof connector is arranged in the box body, which is composed of a plug and a socket, and the plug is movably connected to the socket through threads On the top, the plug is used to connect with the generator car; the double-throw knife switch, the first input terminal is connected to the socket, and the second input terminal is connected to the mains; the current sampling terminal is set at the output end of the double-throw knife switch the circuit breaker, which is connected to the output end of the double-throw knife type changeover switch; the electric energy meter, whose voltage-taking end is connected with the first input end and the second input end respectively, and the current-taking end is connected with the current sampling end; and voltage loss The chronograph, its voltage monitoring end is respectively connected with the first input end, the second input end and the first feedback end of the electric energy meter, and the current monitoring end is respectively connected with the current sampling end and the second feedback end of the electric energy meter. The access device can greatly shorten the access time of the emergency power supply and ensure the continuity of power consumption.

Description

An emergency power supply quick access device with pressure loss timer

technical field

The invention relates to the field of emergency power distribution, in particular to an emergency power supply quick access device with a voltage loss timer.

Background technique

With the rapid development of today's social economy, the demand for power in different industries is becoming more and more diverse. In order to improve the requirements for power supply quality and continuity of power consumption in various fields, and avoid affecting the normal operation of the power grid in the event of power accidents or power failures. The use of the emergency power supply quick access device can meet the needs of rapid power restoration on site to the greatest extent, ensure the continuity of power consumption, and effectively reduce the losses caused by power outages to daily production and work life. In particular, the emergency power supply quick access device with voltage loss timing function further optimizes the power quality, helps to judge the stability of the power supply, and is conducive to monitoring the normal operation of the power grid system. It is widely used in the power system.

At present, in the power distribution equipment in the power system, the cables of power distribution equipment such as power generation vehicles and copper plates are basically connected by bolts and wrenches. After a power failure caused by a line fault, this method It takes a certain amount of time, and the generator car cannot be moved. If it needs to be moved, specific tools are required. In the absence of tools, it is basically impossible to perform lapping operations, which cannot meet the requirements of rapid emergency power restoration on site.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a quick access device for emergency power supply with a voltage loss timer, so as to overcome the disadvantage of being unable to quickly connect to the backup power supply after a power failure caused by a line failure.

In order to achieve the above object, the present invention provides a quick access device for emergency power supply with a pressure loss timer, comprising: a box body; the box body is provided with: an anti-riot connector, which is composed of a plug and a socket, and the plug It is movably connected to the socket by means of threads, and the plug is used to connect with the generator car; the double-throwing knife type switch, the first input end of which is connected to the socket, and the second input end is connected to the mains; current sampling terminal, which is located at the output end of the double-throwing knife-type changeover switch; circuit breaker, which is connected with the output end of the double-throwing knife-type changeover switch; The second input terminal is connected, and the current terminal is connected with the current sampling terminal; and a voltage loss timer, its voltage monitoring terminal is connected with the first input terminal, the second input terminal and the first feedback terminal of the electric energy meter respectively, and the current monitoring The terminals are respectively connected with the current sampling terminal and the second feedback terminal of the electric energy meter.

Preferably, in the above technical solution, a temperature and humidity controller is also provided in the box, which includes: a temperature sensor, a humidity sensor and a single-chip microcomputer, the temperature sensor and the humidity sensor are connected to the single-chip microcomputer respectively, and the single-chip microcomputer and the fan or heater connection.

Preferably, in the above technical solution, the electric energy meter is one of a three-phase three-wire or three-phase four-wire active energy meter, a three-phase three-wire or three-phase four-wire reactive energy meter.

Preferably, in the above technical solution, the circuit breaker is a molded case circuit breaker.

Preferably, in the above technical solution, there are two circuit breakers.

Preferably, in the above technical solution, the pressure loss timer is equipped with RS232 serial port and RS485 serial port.

Compared with the prior art, the present invention has the following beneficial effects:

1. The emergency power supply quick access device in this utility model is equipped with an emergency power supply quick access device for power recovery in case of emergency according to the demand for rapid power recovery on site, and can safely and quickly connect the power generation vehicle and the user end, meeting the requirements of The user's request for a quick call back. And change the traditional method of using bolts and wrenches to connect cables after the power supply such as emergency power generation vehicles arrives at the power distribution equipment. It can make preparations for power connection in advance, greatly shorten the connection time of emergency power supply, and ensure power consumption. continuity.

2. The utility model is equipped with a voltage loss timer, which can monitor the operating status of the three-phase three-wire (three-phase four-wire) active (reactive) energy meter. When there are faults such as overvoltage, undervoltage, open circuit of CT secondary circuit, artificial short circuit, etc., the instrument can reflect the fault situation in time, display which phase sequence of the three-phase voltage A, B, and C loses voltage and alarm, and record the voltage loss time and Loss of pressure times.

3. The utility model adds temperature and humidity control, which can automatically adjust the temperature and humidity inside the box.

Description of drawings

Fig. 1 is a front view of an emergency power quick access device according to the present invention.

Fig. 2 is a component layout diagram of the emergency power quick access device according to the present invention.

Fig. 3 is a component connection diagram of the emergency power quick access device according to the present invention.

Explanation of main reference signs:

1-Double-throw knife switch, 2-circuit breaker, 3-box, 4-voltage loss timer, 5-anti-riot connector, 6-electric energy meter.

detailed description

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

Fig. 1 to Fig. 2 show the schematic structural diagrams of the emergency power quick access device with pressure loss timer according to the preferred embodiment of the present invention.

As shown in Figure 1, the box of the emergency power supply quick access device is a wall-mounted box. The box 3 is divided into upper and lower compartments. The upper compartment has an observation window and is printed with "emergency power quick Access device", the lower compartment has a nameplate of the device, and is printed with a red mark of "electric hazard". The protection level of the device reaches IP44 or above, and is suitable for outdoor installation.

As shown in Figure 2 and Figure 3, they are the layout diagram and connection diagram of the internal components of the emergency power supply device respectively. Among them, the box body 3 is equipped with: riot-proof connector 5, double-throwing knife type changeover switch 1, current sampling terminal, electric energy meter 6. Loss of pressure timer 4. Circuit breaker 2. Temperature and humidity controller.

Among them, the explosion-proof connector 5 in this embodiment is made of insulating material with flame retardant, high heat resistance and sufficient mechanical strength. It is also called a three-phase five-wire non-sparking explosion-proof connector. As a power connector, the The anti-riot connector 5 is composed of a plug and a socket. The socket is fixed inside the lower compartment of the box body 3. The plug is movably connected to the socket through threads, which can be quickly connected and disassembled easily, realizing the quick connection device of the generator car and the emergency power supply The quick connection, the plug is used to dock with the generator car, and is installed on the power cable of the generator car.

Further, the external power source adopted in this embodiment includes grid power supply and generator car power supply, the first input end of the double-throwing knife type transfer switch 1 is connected to the socket, and the second input end is connected to the mains (i.e. grid power supply) as an isolating switch There are three function options for main use, standby, and double split. It is located in the upper compartment of the box body 3 to realize the arbitrary input of the mains and generator power sources; the current sampling terminal is set in the double-throwing knife type. At the output end of the transfer switch, current sampling is provided for the electric energy meter 6 and the voltage loss timer 4 .

In another step, the electric energy meter 6 is located in the upper compartment of the casing 3, and the electric energy meter 6 can be selected as one of three-phase three-wire or three-phase four-wire active energy meter, three-phase three-wire or three-phase four-wire reactive energy meter, Wherein, the voltage-taking terminal of the electric energy meter 6 is connected with the first input terminal and the second input terminal respectively, and the current-taking terminal is connected with the current sampling terminal; The voltage monitoring terminals are connected to the first input terminal, the second input terminal and the first feedback terminal of the electric energy meter 6 respectively, and the current monitoring terminals are respectively connected to the current sampling terminal and the second feedback terminal of the electric energy meter 6 for monitoring the three-phase The operating status of the three-wire (three-phase four-wire) active (reactive) energy meter. When the electric energy meter 6 in operation has faults such as loss of voltage, undervoltage, open circuit of CT secondary circuit, and artificial short circuit under the condition of load current, it will display which phase sequence of the three-phase voltage of A, B, and C is the voltage loss And report to the police, and record the pressure loss time and the number of pressure loss. The loss of pressure timer 4 is equipped with RS232 serial port 1, RS485 serial port 2 (optional), data forwarding port dual serial ports, and the communication mode supports GPRS wireless communication, twisted pair, coaxial cable, etc. for communication with optical fiber, so that the instrument It can reflect the fault situation in time and realize the intelligent monitoring of the line. The circuit breaker 2 preferably adopts a molded case circuit breaker, which is arranged in the upper compartment of the box body 3 to realize the control of the power on and power off of the line. Overload protection, short circuit protection, overcurrent protection, voltage loss protection, undervoltage protection, grounding protection, leakage protection, opening and closing operations, etc.; in this embodiment, there are two circuit breakers, one for main use, A spare.

Furthermore, a temperature and humidity controller is also provided in the cabinet 3, which is located in the upper compartment of the cabinet 3. The temperature and humidity controller includes: a temperature sensor, a humidity sensor and a single-chip microcomputer, and the temperature sensor and the humidity sensor are respectively connected with the single-chip microcomputer, and the single-chip microcomputer Connect with fan or heater. Among them, in this embodiment, a high-end single-chip microcomputer is used as the control core, and an advanced and stable temperature and humidity sensor can be used to measure and control the temperature and humidity signals at the same time, and realize digital display. Lower limit setting and display, so that the instrument can automatically start the fan or heater according to the site conditions, and automatically adjust the actual temperature and humidity of the measured environment.

To sum up, an explosion-proof plug and socket is installed in the power conversion device as a power connector. The plug is installed on the power cable of the generator car, and the socket is fixed inside the emergency box. , to realize the quick connection between the power generation vehicle and the quick access device of the emergency power supply.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. a kind of emergency power supply Quick access device with decompression timing, it is characterised in that including：

Casing；

It is provided with the casing：

Anti-riot connector, it is made up of plug and socket, and the plug is movably connected on by way of screw thread on the socket, The plug is used for connect relative with generator car；

Double-throw blade type change-over switch, its first input end connects the socket, the second input connection civil power；

Current sampling end, it is located at the output of the double-throw blade type change-over switch；

Breaker, it is connected with the output end of the double-throw blade type change-over switch；

Electric energy meter, its power taking pressure side is connected with first input end, the second input respectively, obtaining current end and the current sampling end Connection；And

Decompression calculagraph, its voltage monitoring end connects with the first feedback end of first input end, the second input and electric energy meter respectively Connect, second feedback end of the current monitoring end respectively with current sampling end and electric energy meter is connected.

2. the emergency power supply Quick access device according to claim 1 with decompression timing, it is characterised in that the casing Temperature and humidity controller is inside additionally provided with, it includes：Temperature sensor, humidity sensor and single-chip microcomputer, the temperature sensor and wet Degree sensor is connected with the single-chip microcomputer respectively, and the single-chip microcomputer is connected with fan or heater.

3. the emergency power supply Quick access device according to claim 1 with decompression timing, it is characterised in that the electric energy Table is one kind in phase three-wire three or three-phase and four-line active electric energy meter, phase three-wire three or three-phase and four-line reactive energy-meter.

4. the emergency power supply Quick access device according to claim 1 with decompression timing, it is characterised in that the open circuit Device is breaker of plastic casing.

5. the emergency power supply Quick access device according to claim 1 with decompression timing, it is characterised in that the open circuit Device is two.

6. the emergency power supply Quick access device according to claim 1 with decompression timing, it is characterised in that the decompression Calculagraph is configured with RS232 serial ports and RS485 serial ports.