High Voltage Switchgear-XGN66-12

Product Overview

The XGN66‑12 box‑type fixed AC metal‑enclosed switchgear (hereinafter referred to as the switchgear) is suitable for 3.6‑12kV three‑phase AC 50Hz system. It serves as a device for receiving and distributing electrical energy. It is suitable for places with frequent operations and for the transformation of switch cabinets equipped with oil switches. Its busbar system is a single busbar system and single busbar sectioning system.

enforce standards

◆GB3906‑2006 "3.6kV to 40.5kV AC Metal‑enclosed Switchgear and Controlgear"

◆IEC 60298‑1990 "AC Metal‑enclosed Switchgear and Controlgear with Rated Voltages up to 1kV and 52kV"

◆GB/T11022‑2011 "Common Technical Requirements for Standards of High‑Voltage Switchgear and Controlgear"

Usage environmental conditions

◆Ambient temperature: Maximum +40℃, minimum ‑15℃;

◆Altitude: No more than 1000m;

◆Relative humidity: daily average no more than 95%, monthly average value is not greater than 90%;

◆The intensity of the earthquake does not exceed 8 degrees.

◆Locations free from fire and explosion hazards, severe pollution, chemical corrosion and intense vibration.

SPECIFICATION：

Put into operation

◆Users should refer to this manual and the respective manuals of the main components for self‑maintenance. The following inspections and     debugging should be carried out before operation.

◆Check whether the models and specifications of the electrical components installed in the cabinet are consistent according to the order   requirements. Check whether the fasteners are loose; Check whether the primary and secondary wiring is correct; Operate the disconnector,   grounding switch, circuit breaker and mechanical interlock 3 to 5 times. The operation should be flexible without any jamming. The interlock   should meet the "five‑prevention" requirements. Then apply grease to the moving parts of the machinery.

◆Check the insulation level and circuit resistance of the switch cabinet and the mechanical characteristics of the circuit breaker in   accordance with the manual and the factory test report. The test results should be consistent with or similar to those in the factory test   report.

◆Set the electrical parameters on the relay or microcomputer measurement and control device.

◆Perform power on and off operations in accordance with the instructions.

Maintenance and repair

Users should regularly maintain and inspect the switch cabinets. The contents include:

◆Clean the dust from all parts, especially the accumulated dust on the surface of the insulating parts.

◆Inspect the mechanical moving parts and add lubricating grease regularly to keep them moving flexibly and reliably.

◆Check whether the electrical contact parts have good contact, whether there is any overheating phenomenon, and whether the grounding   circuit is conducting.

◆Check regularly whether the fasteners are tight.

◆Users should generally carry out fault repair under the assistance of professionals. If it is a minor adjustment or a small fault, users should   conduct self‑repair by referring to this manual and the respective manuals of the main   components.

The external dimensions of the switch cabinet

1.Cabinet door                       13.Isolation switch

 2.Lighting                             14. Tie rod

3.Observation window             15. Rear sealing plate

4.Operating mechanism           16.Current transformer

5.Small doorpanel                   17.Vacuum circuit breaker

6.instrument door                   18.Isolation switch

7.Brow                                  19.Sensors

8. Bus wall casing                   20.Bolts

9. Bolts                                  21.Washer

10. Washer                             22.Washer

11. Washer                              23.Skeleton

12.Nut                                     24. Lightning arrester

Installation

◆The installation foundation is as shown in the following figure. The foundation's channel steel protrudes within 1‑3mm, with an unevenness   of  no more than 1.5mm per meter and a total length of no more than 5mm.

◆Place the switch cabinets in sequence on the foundation, adjust the installation positions, and then fix them firmly with M12 bolts or spot   welding. Between the cabinets, tighten them with M8 bolts.

◆Remove the rear cover plate to install the main busbar and the primary power supply. The contact surface of the terminals should be   cleaned  thoroughly and coated with neutral Vaseline. After installation, seal the cable holes.

◆Connect the indirect grounding busbar of the connection cabinet to form a whole along the arrangement direction of the switch cabinet.   Check whether there is any omission in the working grounding and protective grounding, and   whether the grounding circuit is connected and   conducting. The working grounding resistance should not exceed 1000μΩ, and the protective grounding resistance should not exceed 4Ω.

◆Install the secondary cables. The cables are introduced from the bottom at the front of the cabinet, enter the low‑voltage room along the   test wall, and are distributed on the terminal block. Or introduce it into the low‑voltage room   from the secondary small busbar on the top of   the cabinet, install it, and then seal the cable holes.

◆Clean the dust and debris inside the cabinet.

Hot Tags: high voltage switchgear-xgn66-12, China, suppliers, manufacturers, factory, customized, quotation