CN201219211Y - Telemechanical remote signaling standby system of transforming plant - Google Patents

Abstract

The utility model relates to a substation remote control and remote signaling backup system, which is used for emergency alarm of the substation, and the substation includes a central signal screen. The utility model includes: a signal outlet intermediate relay, and the central signal screen connection, used to receive the accident signal, and output the start signal; the alarm, connected to the signal outlet intermediate relay, is used to start according to the start signal received from the signal outlet intermediate relay, and output the alarm signal to the outside . The utility model is economically feasible, easy to install and low in investment cost. When the communication channel fails, the utility model can replace the communication channel to carry out an accident alarm to the substation, and has the advantages of fast response, safety and reliability.

Description

A substation remote control and remote signaling backup system

technical field

The utility model relates to a substation remote control and remote signal backup system for substation accident alarm.

Background technique

With the vigorous development of the urban economy, large enterprises in major industrial areas have settled down one after another, the speed of power grid development has been accelerating, and the amount of new equipment put into operation in the area has increased sharply. Unattended substation is an advanced management measure for power supply enterprises. Unattended substation accident signals are sent to the dispatcher in time and processed quickly, which can control and reduce the scope of accidents, which is an important condition for improving the reliability of power supply.

The above-mentioned accident signals are all transmitted to the dispatching host through the communication channel, so when the communication channel fails, it will seriously affect the power supply safety of the substation. In the prior art, usually after the communication channel failure is found in the dispatching room, the on-duty personnel are urgently dispatched to rush to the scene for maintenance, which requires a large number of technical personnel and takes a long time to respond, which may lead to major accidents.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model aims to provide a simple, economical and feasible substation remote control and remote signaling backup system, which can replace the communication channel to issue an accident alarm to the substation when the communication channel fails, and It has the advantages of fast response, safety and reliability.

A substation remote control and remote signal backup system described in the utility model is used for emergency alarm of the substation, and the substation includes a central signal screen, which is characterized in that it includes:

The signal outlet intermediate relay is connected with the central signal screen, and is used to receive the accident signal and output the start signal;

The alarm device is connected with the signal outlet intermediate relay, and is used for starting according to the start signal received from the signal outlet intermediate relay, and outputting an alarm signal to the outside.

In the above substation remote control and remote signaling backup system, the alarm device outputs signals through telephone lines.

In the above substation remote control and remote signaling backup system, the signal outlet intermediate relay has a pair of normally open contacts.

Due to the adoption of the above technical solution, the utility model can replace the communication channel to alarm the substation when the communication channel fails, and has the advantages of quick response, safety, reliability, simplicity and economy.

Description of drawings

Fig. 1 is a block diagram of a substation remote control and remote signaling backup system of the utility model.

Detailed ways

As shown in Figure 1, the utility model is a substation remote control and remote signal backup system, which is used to give an accident alarm to the substation, and the substation includes a central signal screen, and the utility model includes a signal outlet intermediate relay 1, Alarm 2.

The signal outlet intermediate relay 1 is connected to the central signal screen 10 of the substation to receive the accident signal and output the start signal, and the signal outlet intermediate relay 1 has a pair of normally open contacts (not shown in the figure), which can be realized by conventional products;

The alarm device 2 is connected with a pair of normally open contacts of the signal outlet intermediate relay 1, and is used to start according to the start signal received from the signal outlet intermediate relay 1, and output an alarm signal to the outside through the telephone line.

The working principle of the utility model is as follows: when an accident occurs in the substation and the communication channel cannot work normally, the central signal screen 10 of the substation sends out an accident signal, and a pair of normally open contacts of the signal outlet intermediate relay 1 closes, that is, the start signal is output; The alarm 2 is connected to the pair of normally open contacts of the signal outlet intermediate relay 1, and then the alarm 2 is started, and then the alarm 2 will automatically dial according to the preset telephone number and complete the alarm to the dispatching room through the local telephone line signal to achieve the purpose of alarm.

In the utility model, the alarm device with the following functions can be selected:

1. It is necessary to realize automatic dialing through the local telephone line and send out alarm language recording.

2. With its own battery, it can operate normally even if the AC power is lost.

3. More than 3 phone numbers can be selected and dialed in a loop to ensure that the dispatcher receives the signal.

4. The action is timely and reliable, and the reaction time cannot be greater than 3 seconds. The accident signal shall not exceed two minutes from the occurrence of the substation to the alarm sound in the dispatching room.

5. The price is cheap.

6. The accident signal has priority, and you can communicate normally when there is no accident signal.

There are many types of alarms with the above functions on the market, such as Ante anti-theft alarm, the model is CR-586.

To sum up, the utility model is economically feasible, easy to install, and low in investment cost. When the communication channel fails, it can replace the communication channel to send an alarm to the substation, and has the advantages of fast response, safety and reliability.

The utility model has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the utility model, and the utility model shall take the scope defined by the appended claims as the protection scope of the utility model.

Claims (3)

1. A substation remote control and remote signal backup system is used to carry out accident alarms to substations, and said substations include a central signal panel, characterized in that: it includes: The signal outlet intermediate relay is connected with the central signal screen, and is used to receive the accident signal and output the start signal; The alarm device is connected with the signal outlet intermediate relay, and is used for starting according to the start signal received from the signal outlet intermediate relay, and outputting an alarm signal to the outside. 2. The substation remote control and remote signaling backup system according to claim 1, characterized in that: said alarm outputs signals through telephone lines. 3. The substation remote control and remote signaling backup system according to claim 1 or 2, characterized in that: the signal outlet intermediate relay has a pair of normally open contacts.