CN220342102U - Remote calling mechanism for substation accident report - Google Patents

Abstract

The utility model belongs to the field of substation data acquisition, and particularly relates to a remote substation accident report retrieving mechanism. The substation equipment screen cabinet is internally provided with a program control exchanger and a station end report acquisition device, the program control exchanger is connected with the relay protection device, the station end report acquisition device is in communication connection with a dispatching master station through a dispatching exchanger, the station end report acquisition device is in communication connection with the program control exchanger, and an accident tripping report of the relay protection device is acquired through the program control exchanger. The utility model ensures the rapidity of fault analysis and the safe and stable operation of the power grid, and saves a great deal of manpower and financial resources.

Description

Remote calling mechanism for substation accident report

Technical Field

The utility model belongs to the field of substation data acquisition, and particularly relates to a remote substation accident report retrieving mechanism.

Background

Electrical secondary equipment room the electrical secondary equipment room is usually provided in a substation is a comprehensive room for arranging electrical secondary equipment which is not suitable to be arranged on the distribution equipment and the site of the main transformer. The conventional screen cabinet is still adopted by the transformer substation at the present stage as an installation container of the safety and automatic control equipment. The transformer substation is internally provided with a plurality of secondary equipment screen cabinets, and the relay protection device, the measurement and control equipment, the alternating current/direct current power supply and other automatic devices are preferably arranged on the transformer substation equipment screen cabinets in a scattered manner or near corresponding power distribution devices. When the screen cabinet structure of the transformer substation equipment adopts centralized arrangement, the screen cabinet structure is preferably uniformly arranged in an electric secondary equipment room.

The electric secondary equipment room is mainly different from the control room in that the electric secondary equipment room is not suitable for being used as a monitoring place with a long-term person on duty. Therefore, relay protection staff is still required to access the fault report to the transformer substation, and no special remote access device for the tripping report of the relay protection device exists at present. At present, the mode of retrieving the accident report of the transformer substation protection device by relay protection personnel is still on-site retrieval, and the total working time is long due to the fact that the time on the way is occupied. Taking a fault report of a part of transformer substations as an example, the report time is between 3.95h and 6.17h, and the time for relay protection staff to get the fault report to the transformer substations is generally longer.

Aiming at the problem that how to quickly realize remote report retrieval after the action of the fault protection device at present is a current urgent need to be solved.

Disclosure of Invention

The utility model provides a remote retrieving mechanism for a transformer substation accident report, which aims to realize remote retrieving of a tripping report of a relay protection device, and comprises the following steps: the system comprises a substation equipment screen cabinet, a relay protection device, a dispatching switch and a dispatching master station;

a program controlled exchanger and a station report acquisition device are arranged in the substation equipment screen cabinet;

the program-controlled exchanger is connected with the relay protection device, and the station report acquisition device establishes communication connection with the dispatching master station through the dispatching exchanger;

the station end report acquisition device is in communication connection with the SPC exchange, and acquires an accident tripping report of the relay protection device through the SPC exchange.

Preferably, a fault recorder is included;

the fault recorder establishes communication connection with the dispatching master station through the dispatching switch and transmits the change condition of the electric quantity to the dispatching master station.

Preferably, a computer host is arranged in the dispatching master station;

the computer host is connected with a display screen, and accident data of the relay protection device are displayed through the display screen.

Preferably, the scheduling master station is further provided with a printer;

the printer is in communication connection with the host computer, and the accident trip report is scanned and printed through the printer.

Preferably, the station-side report acquisition device adopts a substation-side comprehensive digital data acquisition device.

Preferably, the dispatch switch employs a non-real time switch.

From the above technical scheme, the utility model has the following advantages:

according to the utility model, the dispatching switch and the program-controlled switch are arranged, a dispatching data network is established based on the Ethernet, communication connection between the dispatching master station and the station-side report acquisition device in the electric secondary equipment room is realized, remote dispatching of the relay protection accident tripping report of the transformer substation is realized through the station-side report acquisition device, the time on the way is saved, the time for dispatching the fault is further shortened, and the rapidity of analyzing the fault and the safe and stable operation of the power grid are ensured. According to the utility model, the communication connection between the fault recorder and the dispatching master station is established through the dispatching switch, when the power system fails, the fault recorder automatically and accurately records the change conditions of various electric quantities in the processes before and after the fault, and the change conditions of the electric quantities are transmitted to the dispatching master station through the dispatching switch, so that the remote dispatching of fault data is realized.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a remote call mechanism for a substation accident report.

In the figure: 1-substation equipment screen cabinet, 2-program controlled exchanger, 3-station report collection device, 4-relay protection device, 5-fault recorder, 6-dispatch exchanger, 7-dispatch master station, 8-computer host, 9-display screen, 10-printer.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

The utility model provides a remote substation accident report retrieving mechanism, as shown in fig. 1, comprising: substation equipment screen cabinet 1, relay protection device 4, fault recorder 5, dispatch switch 6 and dispatch master station 7.

The program control exchanger 2 and the station report acquisition device 3 are installed in the substation equipment screen cabinet 1, and the station report acquisition device 3 adopts a substation comprehensive digital data acquisition device. The program-controlled exchanger 2 is connected with the relay protection device 4, the station report acquisition device 3 establishes communication connection with the dispatching master station 7 through the dispatching exchanger 6, and the dispatching exchanger 6 adopts a non-real-time exchanger. The fault recorder 5 establishes a communication connection with the scheduling master station 7 through the scheduling switch 6. The station end report acquisition device 3 is in communication connection with the SPC exchange 2, and acquires the accident tripping report of the relay protection device 4 through the SPC exchange 2.

Relay protection device 4: an automated measure and apparatus for timely alerting an operator on duty or directly issuing a trip command to a controlled circuit breaker to terminate the development of such events when a power element (e.g., generator, line, etc.) in the power system or the power system itself fails, jeopardizing the safe operation of the power system.

Trip report of relay protection device: the power system breaks down, the protection device cuts off the fault rapidly, and records the voltage, current, equipment switching value and other data in the fault period, and finally an analysis report is formed.

Remote retrieval: through transformer substation's existing equipment, set up remote terminal, save the time of journey, realize long-range retrieval.

The dispatching master station 7 is internally provided with a computer host 8, the computer host 8 is connected with a display screen 9, a printer 10, a scanning device and the like, the computer host 8 displays accident data of the relay protection device 4 through the display screen 9, and the accident tripping report is scanned and printed through the printer 10.

Based on the above arrangement, the utility model is further illustrated by an embodiment of a pair of substation event report remote retrieval processes.

According to the utility model, the station-end report acquisition device 3 is arranged on a screen cabinet of a transformer substation control layer switch, the station-end report acquisition device 3 is connected with a program controlled switch 2 of the transformer substation through a network cable, the connection of the station-end report acquisition device 3 and each interval relay protection device 4 is realized, the station-end report acquisition device 3 can acquire action reports of the relay protection devices 4 through station-end Ethernet, the station-end report acquisition device 3 is connected with a dispatching switch 6 through the network cable, the dispatching switch 6 is a dispatching data network non-real-time switch, and the station-end report acquisition device 3 can transmit the acquired reports of the relay protection devices 4 to a dispatching master station 7 through a dispatching data network. The special printer 10 and scanner for report printing are installed at the dispatching master station 7 and are connected with an office computer, so that the aim of rapidly printing and scanning uploading after the report is fetched is fulfilled.

According to the utility model, remote retrieval is realized by means of the existing dispatching data network, the existing dispatching data network is carried, and the remote retrieval protection device reports, so that the construction cost is greatly reduced, the remote retrieval is realized, the report is more quickly checked, the working efficiency is improved, and the safety and stability of the power grid are ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A remote substation event report retrieval mechanism, comprising: the system comprises a substation equipment screen cabinet, a relay protection device, a dispatching switch and a dispatching master station;

a program controlled exchanger and a station report acquisition device are arranged in the substation equipment screen cabinet;

the program-controlled exchanger is connected with the relay protection device, and the station report acquisition device establishes communication connection with the dispatching master station through the dispatching exchanger;

the station end report acquisition device is in communication connection with the SPC exchange, and acquires an accident tripping report of the relay protection device through the SPC exchange.

2. The substation event report remote retrieval mechanism according to claim 1, further comprising a fault recorder;

the fault recorder establishes communication connection with the dispatching master station through the dispatching switch and transmits the change condition of the electric quantity to the dispatching master station.

3. The remote substation event report retrieving mechanism according to claim 1, wherein,

a computer host is arranged in the dispatching master station;

the computer host is connected with a display screen, and accident data of the relay protection device are displayed through the display screen.

4. The remote substation event report retrieving mechanism according to claim 3, wherein,

the dispatching master station is also provided with a printer;

the printer is in communication connection with the host computer, and the accident trip report is scanned and printed through the printer.

5. The remote substation event report retrieving mechanism according to claim 1, wherein,

the station end report acquisition device adopts a substation end comprehensive digital data acquisition device.

6. The remote substation event report retrieving mechanism according to claim 1, wherein,

the dispatch switch employs a non-real time switch.