CN208127745U - Fault monitoring and alarming device for substation - Google Patents

Abstract

The utility model discloses a fault monitoring and alarm device for electric substation, including the control appearance, the front surface of control appearance is provided with the operation screen, and the top of control appearance is connected with a power circuit, one side that the top of control appearance is close to a power circuit is connected with two circuits of power, and one side that a power circuit was kept away from on the top of control appearance installs the alarm. The utility model has the advantages of being scientific and reasonable in structure, through carrying out networked control with each work area of electric substation, and carry out real time monitoring through each network branch road of computer in to the electric substation, be convenient for can carry out timely fault handling when breaking down, and remind the staff with the mode of reporting to the police, also make things convenient for the staff to observe the work area that breaks down through the operation screen simultaneously, and then can break down the power supply to the area that breaks down and keep apart, make other work areas still normal operating, high intellectuality has been realized, and is suitable for being generalized to use.

Description

A fault monitoring and alarm device for substation

technical field

The utility model relates to the technical field of substation monitoring, in particular to a fault monitoring and alarm device for a substation.

Background technique

With the popularity of computers and the development of many engineering software, computers can now be used to monitor the operation of some equipment and some simple processing, which not only liberates a lot of labor, but also realizes uninterrupted monitoring throughout the day. The most important thing is to greatly increase the safety factor.

The existing fault monitoring and alarm devices used in substations have a low degree of intelligence, and the working area of the substation is not divided into various parts for network control, which makes it inconvenient to use the computer to control the various networks in the substation. Real-time monitoring of the branch circuit makes it inconvenient for the staff to observe the faulty working area through the operation panel when a fault occurs, and then cannot quickly isolate the faulty area from power failure, resulting in simultaneous power outages that make other working areas Unable to operate normally, affecting the normal operation of the substation.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a fault monitoring and alarm device for substation, which has the following characteristics.

In order to achieve the above object, the utility model provides the following technical solutions:

A fault monitoring and alarm device for substation, including a monitor, the front surface of the monitor is provided with an operation panel, and the top of the monitor is connected to a power supply line, and the top of the monitor is close to a power supply line The side is connected with the second power line, and the top of the monitor is equipped with an alarm on the side away from the first power line.

Further, the first power line includes A-B section circuit, one end of the A-B section circuit is connected in series with B-C section circuit on the side away from the monitor, and the other end of the B-C section circuit is connected in series with the first transformer.

Further, the second power supply line includes a D-E segment circuit, one end of the D-E segment circuit is connected in series with an E-F segment circuit on the side away from the monitor, and a second transformer is connected in series at the other end of the E-F segment circuit.

Further, a B-E segment circuit is electrically connected between the B-C segment circuits, and the other end of the B-E segment circuit is connected between the E-F segment circuits.

Further, a switch-a and a switch-b are connected in series between the A-B segment circuits, the switch-a is installed on the side close to the monitor, and the switch-b is installed on the side away from the monitor, and the B-C segment circuit A switch-c is connected in series.

Further, a switch-e and a switch-f are connected in series between the D-E section circuits, the switch-e is installed on the side close to the monitor, the switch-f is installed on the side away from the monitor, and the E-F section circuit A switch -g is connected in series.

Further, a switch-i is connected in series between the B-E segment circuits.

Further, there is a parallel circuit between the first transformer and the second transformer, and the same side of the first transformer and the second transformer are connected to a G-H section circuit through a wire, and a switch-j is connected in series between the G-H section circuit.

To sum up, the utility model has the beneficial effects: the utility model has a scientific and reasonable structure, through the network control of each working area of the substation, and the real-time monitoring of each network branch in the substation through the computer, It is convenient for timely troubleshooting when a fault occurs, and prompts the staff in the form of an alarm. At the same time, it is also convenient for the staff to observe the working area where the fault occurs through the operation screen, and then can isolate the faulty area from power failure, so that Other working areas are still in normal operation, realizing a high degree of intelligence, suitable for popularization and use.

Description of drawings

Fig. 1 is the schematic diagram of fault monitoring and alarm of the present utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the working principle diagram of alarm;

In the picture:

1. Monitor; 2. Operation panel; 3. Power line 1; 4. Power line 2; 5. Alarm.

Detailed ways

Example:

Below in conjunction with accompanying drawing 1-3 the utility model is described in further detail.

A fault monitoring and alarm device for substation, comprising a monitor 1, the front surface of the monitor 1 is provided with an operation panel 2, and the top of the monitor 1 is connected to a power supply line 3, and the power supply line 3 includes A-B section circuit, One end of the A-B segment circuit is connected in series with the B-C segment circuit on the side away from the monitor 1, the other end of the B-C segment circuit is connected in series with the first transformer, and a switch-a and a switch-b are connected in series between the A-B segment circuit, and the switch-a is installed on On the side close to the monitor 1, the switch-b is installed on the side away from the monitor 1, the switch-c is connected in series between the B-C section circuit, and the side of the top of the monitor 1 close to the power supply 1 line 3 is connected to the power supply 2 line 4. The second power supply line 4 includes a D-E segment circuit. One end of the D-E segment circuit is connected in series with the E-F segment circuit on the side away from the monitor 1. The other end of the E-F segment circuit is connected in series with a second transformer, and a switch is connected in series between the D-E segment circuit. e and switch-f, the switch-e is installed on the side close to the monitor 1, the switch-f is installed on the side away from the monitor 1, the switch-g is connected in series between the E-F segment circuits, and the electrical connection between the B-C segment circuits The B-E section circuit is connected, and the other end of the B-E section circuit is connected between the E-F section circuit, the switch-i is connected in series between the B-E section circuit, the first transformer and the second transformer are connected in parallel, and the first transformer and the second transformer are connected in parallel. The same side of the second transformer is connected with the G-H section circuit by wires, and a switch-j is connected in series between the G-H section circuits. The top of the monitor 1 is far away from the side of the power supply line 3. An alarm 5 is installed, A-B section circuit, B-C section Circuit, B-E section circuit, D-E section circuit, E-F section circuit, first transformer, second transformer and G-H section circuit are in parallel structure, and A-B section circuit, B-C section circuit, B-E section circuit, D-E section circuit, E-F section The output terminals of the circuit, the first transformer, the second transformer and the G-H section circuit are all electrically connected to the input terminal of the alarm 5 .

Working principle: In the initial state of the monitoring device, only the first power line 3 is turned on, and the second power line 4 is standby. In normal working state, the first power line 3 wants to provide power to the load, and the power supply control switch-a, switch-b, Both switch-c and switch-d are in the closed state; when the A-B section of the power supply line 3 fails, the switch-a and switch-b trip immediately, and the switch-c, switch-d and switch-i are closed; when the power supply one When the B-C section of line 3 fails, switch-c and switch-d trip immediately, and switch-g, switch-h and switch-i close; when the first transformer fails, switch-c and switch-d trip immediately, Switch-g, switch-h and switch-i are closed; when the D-E section of power supply line 4 fails, switch-e and switch-f trip immediately, and switch-c, switch-d and switch-i are closed; when the power supply When the E-F section of the second line 4 fails, switch-g and switch-h trip immediately, and switch-c, switch-d and switch-i close; when the second transformer fails, switch-g and switch-h trip immediately , switch-c, switch-d and switch-i are closed; when the B-E section fails, the switch-i trips, and the power supply line 3 works normally; when the G-H section of the outlet fails, the switch-j trips, and the other outlet switches normal work.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. A fault monitoring and alarm device for substation, comprising a monitor (1), characterized in that: the front surface of the monitor (1) is provided with an operation panel (2), and the top of the monitor (1) Connected with a power line (3), the top of the monitor (1) is connected with a power line (4) near the side of the power line (3), and the top of the monitor (1) is away from the power line ( 3) An alarm (5) is installed on one side. 2. A kind of fault monitoring and alarm device for substation according to claim 1, characterized in that: said power line (3) comprises A-B section circuit, and one end of A-B section circuit is far away from one end of monitor (1). A segment B-C circuit is connected in series on one side, and a first transformer is connected in series at the other end of the segment B-C circuit. 3. The fault monitoring and alarm device for a kind of substation according to claim 1, characterized in that: the second power supply line (4) comprises a D-E segment circuit, and one end of the D-E segment circuit is far away from one end of the monitor (1). The E-F segment circuit is connected in series on one side, and the second transformer is connected in series at the other end of the E-F segment circuit. 4. A fault monitoring and alarm device for substation according to claim 2 or 3, characterized in that: the B-C segment circuit is electrically connected with the B-E segment circuit, and the other end of the B-E segment circuit is connected to the E-F segment between circuits. 5. The fault monitoring and alarm device for a substation according to claim 2, characterized in that: a switch-a and a switch-b are connected in series between the A-B segment circuits, and the switch-a is installed near the monitor (1) On one side, the switch-b is installed on the side away from the monitor (1), and the switch-c is connected in series between the B-C section circuit. 6. The fault monitoring and alarm device for a kind of substation according to claim 3, characterized in that: a switch-e and a switch-f are connected in series between the D-E section circuit, and the switch-e is installed near the monitor (1) On one side, the switch-f is installed on the side away from the monitor (1), and the switch-g is connected in series between the E-F segment circuits. 7. A fault monitoring and alarm device for substation according to claim 4, characterized in that: a switch-i is connected in series between the B-E segment circuits. 8. A fault monitoring and alarm device for substation according to claim 2 or 3, characterized in that: the first transformer and the second transformer are connected in parallel, and the same side of the first transformer and the second transformer The G-H segment circuits are connected by wires, and a switch-j is connected in series between the G-H segment circuits.