CN209389768U - Simple type emergency power supply Quick access device - Google Patents

Abstract

A simple quick access device for emergency power supply, the utility model relates to the field of power supply, in particular to a simple quick access device for emergency power supply. Provides a simple emergency power supply for convenient access to the emergency power supply by reserving access cables at any position in the direction of the busbar behind the AC power panel incoming switch, leaving an interface at the end of the cable, and installing an on-off mechanism Quick access fixtures. The AC power panel is provided with a busbar, and the transformer used is connected to the busbar through an outgoing cable, and an incoming switch is provided on the outgoing cable; the use of the utility model greatly improves the one-time success rate of emergency power supply access , can be applied to multiple types of specifications, has good current carrying capacity and insulation capacity, can successfully connect the emergency power supply and the electrical device at one time, effectively shorten the emergency power supply connection time and reduce human errors, and improve the emergency response capability of the substation.

Description

Simple emergency power quick access device

technical field

The utility model relates to the field of power supply, in particular to a simple emergency power supply quick access device.

Background technique

During the operation of the substation, the power used is the core of the operation and the basis of accident handling. The power supply of the protection devices of the substation equipment all depends on the AC power used. When the AC-DC system trips due to the failure of the transformer used, and the AC power in the station is lost, usually the battery can only be used for power supply, and the protection may be completely lost at any time, causing the fault to fail to operate correctly, thereby skipping the trip and expanding the scope of the accident.

Among them, the electricity used is the power supply used by the transformer used to convert the high voltage (usually 10kV) in the substation into 400V voltage for AC and DC (power, lighting, protection devices, etc.) in the substation.

The existing emergency power access method is that the maintenance personnel first dismantle the incoming busbar bolts behind the AC power screen, and connect the A, B, and C three-phase cables of the emergency power line to the corresponding positions. In the actual situation on site, the operation will be limited by the installation position and busbar spacing of different substation busbars. The working space is limited and the light behind the screen cabinet is dark. It takes a long time to connect, and the operation and maintenance personnel cannot complete it independently, and there may even be wrong wiring such as three-phase incompatibility.

Therefore, in order to meet the needs of maintenance power consumption and rapid recovery of power supply in the station, it is necessary to use emergency power supply for power supply.

Utility model content

Aiming at the above problems, the utility model provides a method of reserving an access cable at any position in the direction of the bus bar after the AC power supply screen incoming switch, leaving an interface at the end of the cable, and installing an on-off mechanism to realize the convenience of emergency power supply. A simple emergency power quick access device for access.

The technical scheme of the utility model is: comprising an AC power panel and a transformer used, the AC power panel is provided with a bus bar, the transformer used is connected to the bus bar through an outgoing cable, and an incoming switch is provided on the outgoing cable; It includes a box body, a power on-off module, a monitoring module and a cable connection module, and the box body is arranged on the outside of the AC power screen;

The power on-off module and the monitoring module are arranged in the box body,

The power on-off module includes a reserved access cable, one end of the reserved access cable is connected to an outgoing cable, the other end is provided with an interface, and an on-off mechanism is provided on the reserved access cable;

The monitoring module includes a voltmeter, an ammeter and an indicator light, and the voltmeter, the ammeter and the indicator light are respectively connected to reserved access cables through wires;

The cable docking module is arranged outside the box, and the cable docking module includes an emergency power supply access cable, one end of the emergency power supply access cable is connected to the emergency power supply equipment, and the other end is connected to a connector, and the connector is used to connect to the interface Inside.

One end of the reserved access cable connected to the outgoing cable is located between the incoming switch and the busbar.

The on-off mechanism is an air switch.

The emergency power supply equipment is an emergency power supply vehicle or an emergency generator.

Through the reserved interface, the utility model realizes that during the emergency power supply access process, there is no need for staff to dismantle the AC busbar of the screen cabinet, which greatly shortens the operation time; the joint is connected with the interface, and the phase sequence position is solidified to avoid the three-phase failure caused by human error. The situation that the connection does not correspond occurs, and the safety of the work is improved.

The use of the utility model greatly improves the one-time success rate of emergency power supply access, is applicable to various types of specifications, has good carrying capacity and insulation capacity, and can successfully connect the emergency power supply and the electrical device at one time, effectively shortening the emergency response time. Power access time and reduce human error, improve the emergency response capability of the substation.

At the same time, when the operation and maintenance personnel connect to the emergency power supply, they can complete it alone without waiting for the maintenance personnel, which improves the work efficiency and does not need to perform cumbersome operations such as dismantling the busbar, which indirectly guarantees the safety of the personnel themselves and is conducive to safe production .

Description of drawings

Fig. 1 is a structural representation of the utility model,

In the figure, 1 is the AC power panel, 2 is the busbar, 3 is the transformer used, 4 is the incoming switch, 5 is the box, 6 is the interface, 7 is the on-off mechanism, 8 is the monitoring module, and 9 is the emergency power supply equipment. 10 is a joint.

Detailed ways

As shown in Figure 1, the utility model includes an AC power panel 1 and a transformer 3. The AC power panel is provided with a busbar 2, and the transformer used is connected to the busbar through an outgoing cable. The outgoing cable is provided with an inlet line switch 4; it also includes a box body 5, a power on-off module, a monitoring module and a cable docking module. Connect to the AC power panel through the outgoing cable.

The power on-off module and the monitoring module are arranged in the box body,

The power on-off module includes a reserved access cable, one end of the reserved access cable is connected to an outgoing cable, the other end is provided with an interface 6, and an on-off mechanism 7 is provided on the reserved access cable;

The monitoring module 8 includes a voltmeter, an ammeter and an indicator light, and the voltmeter, the ammeter and the indicator light are respectively connected to reserved access cables through wires; the monitoring module is provided for convenient observation and reliable monitoring.

The cable docking module is arranged outside the box, and the cable docking module includes an emergency power access cable, one end of the emergency power access cable is connected to the emergency power supply device 9, and the other end is connected to the joint 10, and the joint is used to connect within the interface. The connector and interface connection adopts three-phase integrated connection, the cable ABC three-phase integrated, and the insertion position of the phase sequence is fixed by the principle of card slot limit at the end interface, which is reliable for plugging and unplugging. Interface and joint connection form, you can choose conventional devices such as aviation plugs or high-current connectors.

Through the reserved interface, the utility model realizes that during the emergency power supply access process, there is no need for staff to dismantle the AC busbar of the screen cabinet, which greatly shortens the operation time; the joint is connected with the interface, and the phase sequence position is solidified to avoid the three-phase failure caused by human error. The situation that the connection does not correspond occurs, and the safety of the work is improved.

One end of the reserved access cable connected to the outgoing cable is located between the incoming switch and the busbar, and the access is reliable without affecting the original power supply mode.

The on-off mechanism 7 is an air switch, and the air switch has protection against pressure loss, undervoltage, overload and short circuit.

The emergency power supply equipment 9 is an emergency power supply vehicle or an emergency generator, which is convenient to select and set according to work needs.

Claims (4)

1. A simple emergency power supply quick access device, including an AC power panel and a transformer used, the AC power panel is provided with a busbar, the transformer used is connected to the busbar through an outgoing cable, and the outgoing cable is provided with an incoming line A switch; it is characterized in that it also includes a box body, a power on-off module, a monitoring module and a cable docking module, and the box body is arranged on the outside of the AC power screen; The power on-off module and the monitoring module are arranged in the box body, The power on-off module includes a reserved access cable, one end of the reserved access cable is connected to an outgoing cable, the other end is provided with an interface, and an on-off mechanism is provided on the reserved access cable; The monitoring module includes a voltmeter, an ammeter and an indicator light, and the voltmeter, the ammeter and the indicator light are respectively connected to reserved access cables through wires; The cable docking module is arranged outside the box, and the cable docking module includes an emergency power supply access cable, one end of the emergency power supply access cable is connected to the emergency power supply equipment, and the other end is connected to a connector, and the connector is used to connect to the interface Inside. 2. The simple emergency power supply quick access device according to claim 1, characterized in that, one end of the reserved access cable connected to the outgoing cable is located between the incoming switch and the busbar. 3. The simple emergency power supply quick access device according to claim 1, characterized in that the on-off mechanism is an air switch. 4. The simple emergency power supply quick access device according to claim 1, wherein the emergency power supply equipment is an emergency power supply vehicle or an emergency generator.