Box-type substation equipment is generally divided into several intervals

Box-type substation equipment is generally divided into several intervals, and the division of these intervals is mainly based on the function and monitoring needs of the equipment. Here is a detailed explanation of these intervals:

‌bus equipment interval ‌ : This interval displays all information about the bus equipment, including the bus PT (voltage transformer), bus ground knife, etc. For buses with voltage levels of 35kV and below, multiple bus equipment can be arranged on the same monitoring screen.

interval information subgraph ‌ : Each interval usually has a corresponding interval information subgraph, which is used to display the equipment status, measurement and control information, and protection information of the interval. There will be a title at the top of the interval diagram, such as "xxkVxx substation xx interval diagram", click the title to jump to the index map of the home page. There may be jump buttons such as "Main wiring diagram" and "Optical plate Index" directly below the title.

partition of interval protection information ‌ : For the interval with more information, it may be divided according to measurement and control information and protection information, and arranged on two screens. The top of the interval protection information sub-graph is the screen title and jump button, and the screen area is generally divided into multiple areas from left to right according to the protection configured at the interval. Each area is from top to bottom for protection device information and channel status monitoring, protection set value area switching, protection hard and soft pressure plate, protection device remote return and protection alarm plate, etc.

In addition, in the operation and maintenance of box-type substation, the following points need to be paid attention to:

The temperature inside the cabinet should be kept within a certain range, the minimum temperature should be kept above 5 ° C, and the maximum temperature should not exceed the maximum ambient temperature outside the cabinet or 40 ° C (when the maximum ambient temperature outside the cabinet exceeds 50 ° C). Humidity should also be kept below 90%.
When entering and leaving the communication equipment room and the relay protection room, the door should be locked behind you to ensure the safety of the equipment.
Communication equipment room and relay protection room should have fire prevention and small animal prevention measures to avoid accidents.
Wireless communication devices are strictly prohibited in these rooms to prevent interference with the normal operation of the equipment.