CN219039208U

CN219039208U - Relay protection device outlet pressing plate monitoring device

Info

Publication number: CN219039208U
Application number: CN202223368248.2U
Authority: CN
Inventors: 周洪胜; 杨永旭; 李瑞津; 毕小熊; 刘祺; 矣林飞; 王开鹏; 张琦; 李波; 张骁; 邓梦竹; 张鹏; 冯以帆; 李超靖; 华伟东
Original assignee: Yuxi Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Yuxi Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-16
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses an outlet pressure plate monitoring device of a relay protection device, which is mainly applied to the field and comprises a machine case and a power switch, wherein a pressure plate state indicator and the power switch are arranged on a front panel of the machine case, a port is arranged on a rear panel of the machine case, the port comprises a power input positive electrode and a power input negative electrode, a signal ground COM, 5 groups of pressure plate voltage input ports and 5 groups of pressure plate state signal output ports, a singlechip, a voltage acquisition module and a voltage reduction module are arranged in the machine case, and the singlechip, the voltage acquisition module, the voltage reduction module and the power switch are electrically connected. By applying the monitoring device for the outlet pressing plate of the relay protection device, the measuring times can be greatly reduced, and the aging risk of the protection action node of the device is reduced; the test result is kept to be displayed, so that the observation is more convenient and accurate; the operation personnel of a multimeter are not needed, the number of test personnel is reduced, the risk of mistakenly touching other devices beside is reduced, and the work of a side screen is not hindered.

Description

Relay protection device outlet pressing plate monitoring device

Technical Field

The utility model relates to the field of monitoring devices, in particular to an outlet pressing plate monitoring device of a relay protection device.

Background

The transformer protection, bus differential, failure, grounding change protection, safety, spare power automatic switching, low-cycle load shedding and other safety devices in the secondary equipment are all devices with a plurality of outlets, wherein the number of outlets of the devices is 3, and the number of outlets of the devices is nearly 20. During the checking and accepting work, the condition of each outlet action under each logic needs to be measured, the action must be reliable, the outlet without the action must be reliable and not be active, otherwise, the fault equipment cannot be timely and correctly isolated when the primary equipment is in fault, and the accident range is enlarged. Thus, the testing of the outlet platen is a very important test item for secondary device inspection.

At present, a universal meter is commonly used for monitoring the voltage of an outlet pressing plate. During testing, the negative gauge pen of the universal meter is grounded, the positive gauge pen is opposite to the lower end of the pressing plate, the protection action is performed once, one pressing plate is tested, the next pressing plate is replaced after the testing is finished, one logic can be tested only by a plurality of times, and the number of times of repeated tests of one logic is the number of outlet pressing plates.

Disclosure of Invention

The utility model provides an outlet pressing plate monitoring device of a relay protection device, which solves the problem of tedious detection process and low efficiency of the outlet pressing plate of the relay protection device.

The technical scheme of the utility model is as follows: the utility model provides a relay protection device export clamp plate monitoring devices, includes quick-witted case, switch, machine case front panel sets up clamp plate status indicator lamp, switch, machine case rear panel sets up the port, the port includes power input anodal and negative pole, signal ground COM, 5 clamp plate voltage input ports, 5 clamp plate status signal output ports of group, machine incasement portion sets up singlechip, voltage acquisition module, step-down module, singlechip, voltage acquisition module, switch electrical connection, singlechip and clamp plate status indicator lamp electrical connection, the singlechip is connected with clamp plate status signal output port.

Preferably, the case is a 19-inch standard case, and 4 groups of bolt holes are formed in the front panel.

The principle of the utility model is as follows: when in use, 1, the input direct current 100Vdc-250Vdc or the alternating current 110Vac/220Vac is connected to the positive electrode and negative electrode interfaces of the power supply input; connecting the signal ground GND to the COM interface;

2. the voltage input ports of the pressing plates are connected to two ends of the pressing plates to be monitored (wherein one end close to +KM is "+", and one end close to-KM is "-") according to requirements, so that the connection is guaranteed to be in one-to-one correspondence, and "+" is connected with "+"; "-" is connected "-".

3. The interface of the status signal (the signal is the on/off signal of the relay) is connected to the upper computer according to the requirement.

4. The power switch is pressed down to supply power to the device, and an LED red light on the power switch indicates that voltage is input.

5. Observing the on-off condition of a pressing plate state indicator lamp on the front panel; when the pressing plate is in the input state, the green light of the pressing plate state indicator lamp is normally on; when the pressing plate is in an exit state, the green light of the pressing plate state indicator lamp is turned off; when no connection exists or abnormal conditions occur, the green lamp of the pressing plate state indicator lamp flashes.

6. When the pressing plate is in the input state, the signal state output port is conducted; in other states (exit state, no connection, abnormal operation), the signal state output port is open.

The technical problems to be solved by the utility model are as follows: the utility model provides a relay protection device export clamp plate monitoring device uses singlechip, voltage acquisition module, step down module, switch, power input positive pole and negative pole, signal ground COM, clamp plate voltage input port, clamp plate state signal output port to monitor export clamp plate voltage, eliminates the traditional method of using the universal meter to monitor export clamp plate voltage.

The utility model has the beneficial effects that: the outlet pressing plate monitoring device of the relay protection device can greatly reduce the measurement times and reduce the ageing risk of the protection action node of the device; the test result is kept to be displayed, so that the observation is more convenient and accurate; the operation personnel of a multimeter are not needed, the number of test personnel is reduced, the risk of mistakenly touching other devices beside is reduced, and the work of a side screen is not hindered.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a schematic diagram of the structure of the present utility model;

FIG. 5 is a schematic block diagram of the present utility model;

FIG. 6 is a schematic diagram of the present utility model;

FIG. 7 is a schematic diagram of the present utility model;

in the figure, a machine box 101, a pressing plate state indicator lamp 102, a power switch 103 and a port 104.

Detailed Description

The specific implementation mode of the utility model is as follows: as shown in fig. 1-7, an outlet pressure plate monitoring device of a relay protection device comprises a case 101 and a power switch 103, wherein a pressure plate state indicator 102 and the power switch 103 are arranged on a front panel of the case 101, a port 104 is arranged on a rear panel of the case 101, the port 104 comprises a power input anode and a power input cathode, a signal ground COM, 5 groups of pressure plate voltage input ports and 5 groups of pressure plate state signal output ports, a singlechip, a voltage acquisition module and a voltage reduction module are arranged in the case 101, the singlechip, the voltage acquisition module, the voltage reduction module and the power switch 103 are electrically connected, the singlechip is electrically connected with the pressure plate state indicator 102, and the singlechip is connected with the pressure plate state signal output ports.

The application steps of the utility model are as follows: when in use, 1, the input direct current 100Vdc-250Vdc or the alternating current 110Vac/220Vac is connected to the positive electrode and negative electrode interfaces of the power supply input; connecting the signal ground GND to the COM interface;

2. according to the requirement, the two ends of the pressing plate to be monitored, which are close to +KM, are connected with the voltage input ports of the pressing plate, wherein the end, close to-KM, is "+", and the end, close to-KM, is "-", so that the connection is ensured to be in one-to-one correspondence, and "+" is connected with "+"; "-" is connected "-".

3. The state signal is connected to the upper computer as the on/off signal interface of the relay according to the requirement.

5. Observing the on-off condition of the pressing plate state indicator lamp 102 on the front panel; when the pressing plate is in the input state, the green light of the pressing plate state indicator lamp 102 is normally on; when the pressing plate is in the retreating state, the green light of the pressing plate state indicator lamp 102 is turned off; when there is no connection or an abnormal condition, the platen status indicator light 102 lights green as flashing.

6. When the pressing plate is in the input state, the signal state output port is conducted; and in other states, the state is exited, no connection exists, the operation is abnormal, and the signal state output port is open.

Specifically, the case 101 is a 19 inch standard case, and 4 groups of bolt holes are formed in the front panel. The 19 inch standard chassis and the bolt holes arranged on the front panel facilitate the installation of the chassis 101 to the frame, and facilitate the unification of equipment

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a relay protection device export clamp plate monitoring devices, includes quick-witted case (101), switch (103), its characterized in that: the utility model discloses a power supply cabinet, including machine case (101) front panel, chassis (101) rear panel, chassis (101) front panel are provided with clamp plate status indicator (102), port (104) include power input positive pole and negative pole, signal ground COM, 5 clamp plate voltage input ports, 5 clamp plate status signal output ports of group, chassis (101) inside sets up singlechip, voltage acquisition module, step-down module, singlechip, voltage acquisition module, switch (103) electrical connection, singlechip and clamp plate status indicator (102) electrical connection, singlechip and clamp plate status signal output port are connected.

2. The apparatus for monitoring an outlet platen of a relay protection apparatus according to claim 1, wherein: the case (101) is a 19-inch standard case, and 4 groups of bolt holes are formed in the front panel.