HXG-12 (L) type (XGN15) AC high voltage sulfur hexafluoride ring network switchgear

Use and operation

Maintenance and Care

The general time limit for maintenance and maintenance of the equipment in the ring network cabinet is three years under normal circumstances. The single-spring and double-spring operating mechanisms of the load switch are maintenance-free and do not; require any lubrication. Before the relay protection device is put into operation, it should be calibrated according to the manufacturer's requirements.

The specific maintenance measures are carried out according to the following requirements:

(1) Tighten all electrical connections (main busbars, switches, cables, measuring instruments, etc.)

(2) Clean all parts (load switch, line switch, tripping mechanism, motor, etc.) with a vacuum cleaner, and conduct visual inspection.

(3) Perform the closing/opening operation for all switches, including earthing switches.

(4) Turn on the auxiliary control power supply (without giving the remote control signal) to perform an electrical sequence operation.

(5) Clean the busbar room and cable room. Open the upper part of the cabinet to clean the insulation part of the load switch and the busbar, and wipe it with a clean soft cloth. For the dust and sticky grease dirt with deep accumulation, you can use a cloth with a small amount of alkaline cleaner to clean it, and then use a cleaning cloth with water to clean it. , and finally use a dry rag to carefully wipe the surface, and use the same method to clean the cable room (bottom under the load switch, transformer, busbar and line switch, etc.).

Note: Chloroform, carbon tetrachloride or various alcohols cannot be used for cleaning.

Acceptance requirements: All parts should be in good condition, there should be no obvious discharge traces or damage, and there should be no obvious overheating at the connection contact surface, and any unqualified parts should be replaced.

Common faults and troubleshooting methods

Accessories and consumables

Typical user wiring example

Shipping and Storage

Shipping

1. The switchgear must be able to adapt to railway and road transportation, and the outer packaging should be shock-proof, moisture-proof and dust-proof.

2. The ability of the packaging box to resist shock and vibration during transportation conforms to the provisions of GB8166.

3. The switchgear can be transported by a hand-push forklift or a freight forklift. Under special circumstances, a steel pipe can be used for bedding and rolling (the number of pipes is not less than 4).

4. When loading and unloading switchgear, the loading and unloading should be carried out according to the storage and transportation indication signs on the packing box to prevent the occurrence of cargo damage accidents. The switch cabinet should usually be moved vertically, and should avoid tilting or overturning, such as the entrance height is not enough; when enough, a single switch cabinet is allowed to be moved skewed. For a single switchgear, use 2 steel wire ropes through the lifting lugs at the top of the cabinet for lifting, and 4 wire ropes of sufficient length must be used when hoisting the whole group of multiple switchgears (maximum 4 cabinets, and the length does not exceed 2 meters). ).

Note: The switchgear is not allowed to be lifted by the switch components installed in the cabinet 1

5. The switchgear may be damaged after long-distance transportation, so it must be checked out of the box. If transport damage is found, immediately notify the freight department for accident handling. For example, when the switchgear is delivered to the customer directly after leaving the factory, it is only necessary to put a plastic bag on the outer surface of the device and send it to the installation site.

Storage

When the switchgear is stored, the ambient temperature is -25℃～+40℃, the relative humidity is not more than 35%, and there is no fire, explosion, danger, serious pollution, chemical corrosion and violent vibration around. Shelf life is 12 months.

Ordering Notes

Please provide the following technical information when ordering:

1. Main circuit wiring scheme number and main circuit diagram, arrangement diagram and floor plan;

2. Schematic diagram of the secondary circuit of the switchgear;

3. Models, specifications and quantities of all electrical components in the switchgear:

4. The material, specification and quantity of the main busbar and branch busbar of the switchgear;

5. If you need to set the low pressure box, please explain:

6. Summary of electrical equipment:

7. When the switchgear is used in special environmental conditions, it should be stated:

8. When other or excess accessories and spare parts are needed, the type and quantity should be provided.

9. For other special requirements, please explain in writing.