CN203551031U - Cable trench water level monitoring and alarming system of transformer substation - Google Patents

Abstract

The utility model discloses a cable ditch water level monitoring and alarm system for a substation, which comprises a high water level detection head and a low water level detection head installed in the cable ditch, the position of the low water level detection head is lower than the position of the high water level detection head, wherein the low water level detection head The detection head is connected with a low water level signal transmitter, the high water level detection head is connected with a high water level signal transmitter, and at the same time the low water level signal transmitter and the high water level signal transmitter are wirelessly connected with the monitoring controller. Solve the problem that the alarm cannot be called to remind the monitoring personnel when the cable ditch seeps in normal times.

Description

Substation cable trench water level monitoring and alarm system

technical field

The utility model relates to a substation cable trench water level monitoring and alarm system in electric power equipment. The system can solve the problem that the cable trench cannot be alarmed to remind monitoring personnel when water seeps in the usual time.

Background technique

At present, there are the following problems in the substation cable trench.

1. The substation is unattended. A centralized control center monitors many substations, and the substations are scattered in various places. The flood season inspection workload is heavy.

2. In the thunderstorm season, it is necessary to carry out flood control inspections on the cable trenches of each station, and other inspections are also required, and there are many cable trenches in each station, and they need to be checked one by one, which greatly increases the workload of the staff and Working hours also increase work intensity and affect work efficiency.

3. Usually, when the cable trench seeps, the alarm cannot be alerted to remind the monitoring personnel, and the problem can only be found during the routine inspection, which also has great potential safety hazards.

In general, the cable trenches of Yunxiu substation are distributed all over the station. Although there are water level observation points, it is necessary to open the cover plates of the cable trenches in each place and use the visual method to observe. Only during special inspections will they be checked one by one. Usually, the monitoring cannot reach the full time, and the alarm cannot be found in time when problems occur. The female duty worker in the substation has insufficient strength to open the cable trench and is vulnerable to injury.

The reason for the above phenomenon is that substation inspections basically rely on human visual inspection, and then inspect according to human judgment based on weather and other factors. The inspection workload during the news period is heavy, and if the cover is flipped in rainy days, it is easy to cause personal injury. Insufficient monitoring manpower and no relevant new technologies for replacement personnel inspections.

Utility model content

The purpose of the utility model is to provide a cable ditch water level monitoring and alarm system in a substation, which solves the problem that the cable ditch cannot be alarmed to remind monitoring personnel when water seeps in the cable ditch.

The purpose of this utility model is mainly achieved through the following technical solutions: the substation cable trench water level monitoring and alarm system includes a high water level detection head and a low water level detection head installed in the cable trench, and the position of the low water level detection head is lower than that of the high water level detection head Wherein, the low water level detection head is connected with a low water level signal transmitter, and the high water level detection head is connected with a high water level signal transmitter, and at the same time, the low water level signal transmitter and the high water level signal transmitter are wirelessly connected with the monitoring controller.

In order to solve the above problems, the utility model specifically sets up an alarm system according to the above-mentioned structure to improve the monitoring efficiency of the water level of the cable trench in the flood season, realize the alarm when the cable trench of each substation enters water and the water level reaches a certain value, reminds the monitoring personnel, and displays on the monitoring panel To display the detailed information of the substation and location of the alarm, etc., to make a cable trench water level monitoring and alarm system. So that monitoring personnel can quickly arrive at the scene to take measures. Improve the safety and reliability of substation operation.

Install low water level detection heads at the lowest water level observation points of all cable trenches. The low water level detection head will realize the alarm function when the water level reaches a certain height. Install high water level detection heads at the highest water level observation points of all cable trenches to realize high water level alarms.

The monitoring controller transmits the signal to the corresponding monitoring screen in the main control room.

The monitoring screen converts the data and uploads it to the monitoring system of the monitoring center to reflect the real-time water level.

After this setting, when rain or water leakage occurs, when the cable groove is blocked by foreign objects, the water level in the cable groove will inevitably rise. When the water level touches the high water level detection head and the low water level detection head, Realize the forwarding of water level information. After the water level information is forwarded to the monitoring controller, the water level information can be displayed in real time. At this time, the personnel on duty can judge whether to dispatch the troubleshooting team according to the water level information, and arrive at the cable trench. Foreign matter or accumulated water treatment. It is also possible to install a water pump in the cable trench, which can realize real-time remote control of drainage means, without the need for personnel to arrive at the scene for treatment.

Preferably, both the high water level detection head and the low water level detection head are mechanical water level detection devices or electronic water level detection devices.

The monitoring controller is a PC monitoring machine.

An alarm is also connected.

The alarm is an audible and visual alarm. The sound and light alarm can realize the alarm effect, and if there are on-duty personnel on site, the fault can be dealt with in time.

Preferably, both the low water level signal transmitter and the high water level signal transmitter are radio frequency signal generating devices.

Preferably, both the high water level detection head and the low water level detection head are LC-SW1 type water level sensors.

The utility model has the advantages of: real-time alarm processing can be solved, and remote troubleshooting can be realized by remotely controlling the water pump. After the cable ditch water level alarm system is installed, the workload of the operating personnel on duty is greatly reduced, and the maintenance of the cable is improved. Accuracy of ditch water level observation. The reliability of cable operation is improved.

Description of drawings

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

The reference signs in the figure are respectively represented as: 1. cable trench, 2. cable trench cover plate, 3. high water level detection head, 4. high water level signal transmitter, 5. low water level detection head, 6. low water level signal Transmitter, 7, monitoring controller, 8, alarm.

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1.

The substation cable trench water level monitoring and alarm system includes a high water level detection head 3 and a low water level detection head 5 installed in the cable trench 1, the position of the low water level detection head 5 is lower than the position of the high water level detection head 3, wherein the low water level The detection head 5 is connected with a low water level signal transmitter 6 , the high water level detection head 3 is connected with a high water level signal transmitter 4 , and the low water level signal transmitter 6 and the high water level signal transmitter 4 are wirelessly connected with the monitoring controller 8 .

In order to solve the above problems, the utility model specifically sets up an alarm system according to the above-mentioned structure to improve the monitoring efficiency of the water level of the cable trench in the flood season, realize the alarm when the cable trench of each substation enters water and the water level reaches a certain value, and remind the monitoring personnel. For the purpose of displaying the detailed information of the substation and location of the alarm, etc., and making a cable trench water level monitoring and alarm system. So that monitoring personnel can quickly arrive at the scene to take measures. Improve the safety and reliability of substation operation.

Install low water level detection heads at the lowest water level observation points of all cable trenches. The low water level detection head will realize the alarm function when the water level reaches a certain height. Install high water level detection heads 3 at the highest water level observation points of all cable trenches, and high water level detection heads 3 realize high water level alarms.

The monitoring controller 8 transmits the signal to the corresponding monitoring screen in the main control room.

The monitoring screen converts the data and uploads it to the monitoring system of the monitoring center to reflect the real-time water level.

After this setting, when rain or water leakage occurs, when the cable trench 1 is blocked by foreign objects, the water level in the cable trench 1 will inevitably rise. When the water level touches the high water level detection head 3 and the low water level detection After the head, the forwarding of the water level information is realized. After the water level information is forwarded to the monitoring controller 8, the water level information can be displayed in real time. Deal with foreign matter or accumulated water in the cable trench 1. A water pump can also be installed in the cable trench 1, which can realize real-time remote control of drainage means, without the need for personnel to arrive at the scene for processing. Operators should regularly check the water level of the cable trench, check the drainage pipes, check the water level alarm system, make records and report in time when problems occur. If the efficiency is further improved, an automatic water pump can be installed in the cable trench. When the water surface of the cable trench reaches a certain height and has not decreased, the water pump can be started to achieve the purpose of drainage

Preferably, both the high water level detection head 3 and the low water level detection head 5 are mechanical water level detection devices or electronic water level detection devices.

The monitoring controller is a PC monitoring machine.

An alarm 8 is also connected.

Alarm 8 is an audible and visual alarm. The sound and light alarm can realize the alarm effect, and if there are on-duty personnel on site, the fault can be dealt with in time.

Preferably, both the low water level signal transmitter 6 and the high water level signal transmitter 4 are radio frequency signal generating devices.

Preferably, both the high water level detection head 3 and the low water level detection head 5 are LC-SW1 type water level sensors.

As mentioned above, the utility model can be well realized. the

Claims (7)

1. Substation cable trench water level monitoring and alarm system, characterized by: including the high water level detection head (3) and the low water level detection head (5) installed in the cable trench (1), the position of the low water level detection head (5) A position lower than the high water level detection head (3), wherein the low water level detection head (5) is connected with a low water level signal transmitter (6), and the high water level detection head (3) is connected with a high water level signal transmitter (4), At the same time, the low water level signal transmitter (6) and the high water level signal transmitter (4) are wirelessly connected to the monitoring controller (8). 2. The substation cable trench water level monitoring and alarm system according to claim 1, characterized in that: the high water level detection head (3) and the low water level detection head (5) are both mechanical water level detection devices or electronic water level detection devices. 3. The water level monitoring and alarming system for cable trenches in substations according to claim 1, wherein the monitoring controller is a PC monitoring machine. 4. The substation cable trench water level monitoring and alarm system according to claim 1, characterized in that: an alarm (8) is also connected. 5. The substation cable trench water level monitoring and alarm system according to claim 4, characterized in that the alarm (8) is an audible and visual alarm. 6. The substation cable trench water level monitoring and alarm system according to claim 4, characterized in that: the low water level signal transmitter (6) and the high water level signal transmitter (4) are both radio frequency signal generators. 7. The substation cable trench water level monitoring and alarm system according to claim 1, characterized in that: the high water level detection head (3) and the low water level detection head (5) are both LC-SW1 type water level sensors.

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