What equipment does the hotel power supply and distribution system mainly consist of?

(1) Procurement and installation of power distribution equipment and incoming cables in the VIP building power distribution room (the outlet cables of the low-voltage distribution cabinet are included in the decoration project of the VIP building);

( 2) The general leveling construction drawing leads from the downline pole outside the red line to the high-voltage power distribution room of the power distribution station, and the cables and high-voltage meter devices are purchased and installed;

(3) High-voltage in the power distribution station of the conference and catering center Power distribution cabinets, DC power supply signal systems, low-voltage power distribution cabinets, transformer equipment, bus ducts, bridges, procurement and installation;

(4) Diesel generator sets and supporting power supply and distribution equipment, busbars connected to low-voltage cabinets Slot procurement and installation;

(5) The power cables and protective tubes of the power supply circuit from the low-voltage distribution cabinet in the low-voltage distribution room of the conference and catering center power distribution station to the building outside the conference and catering center (low-voltage distribution cabinet The introduction of outlet cables into the distribution boxes and equipment in the conference and catering center is included in the decoration project of the conference and catering center);

(6) The cables and protective tubes connecting the panels in the power distribution station;

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(7) Construction of cable trenches and cable wells in the general construction drawings;

(8) High-voltage power distribution device ignition, power transmission and distribution equipment and line testing and debugging;

The power distribution room is also called a power distribution station. In the national standard, the definition of a power distribution station is: "There are only high-voltage distribution devices that function as switching and distribution of electric energy, and there is no main transformer on the busbar." The difference between a power distribution station and a substation is that the power distribution room (power distribution station) does not have transformers, while the power substation has all transformers. The power distribution room is a key part of the building's power supply system, and full-time electricians are assigned to operate it 24 hours a day. Non-staff members are not allowed to enter without the permission of the management office manager or department head. The attendant must hold a certificate to work and be familiar with the status, operation methods and safety precautions of power distribution equipment. The attendant must pay close attention to the indications of the voltmeter, ammeter, and power factor meter; overload operation of the air switch is strictly prohibited. Always keep the floor of the distribution room and the appearance of the equipment dust-free. The switching operation of the equipment in the power distribution room is performed by the person on duty alone. Other personnel present are only responsible for supervision and are not allowed to intervene. It is strictly forbidden for two people to operate the switching at the same time to avoid errors.

1. Power transmission: (The power supply to the building is interrupted and the power supply needs to be restored quickly)

① Find out whether the fault is an external transmission line fault or an internal distribution line fault. External fault: the transformer is not working (no sound, no display on the display); internal fault: the transformer is working normally (there is a sound, the display shows the temperature, and the fan running indicator light is on).

② If there is an external line failure and power outage, contact the power supply department and wait for power to be restored.

③If there is an internal circuit failure and power outage, quickly identify the cause of the failure and eliminate it immediately before sending power.

④Power supply steps: Cut off each load switch (especially the lighting part); press the green start button of the 1# cabinet and 5# cabinet, the voltmeter indicates normal (400v); close each load one by one switch.

⑤If the transformer is working (there is sound and temperature display), but the fan indicator light is not on, it means that the external power transmission line has experienced a power outage and then resumed power supply immediately. At this time, you only need to start The cooling fan then sends power according to the power supply steps.

2. Power outage: (power outage is required for equipment maintenance or other reasons)

① Power outage for equipment maintenance: disconnect the corresponding circuit breaker, and after checking that there is no power, take necessary safety measures The equipment can be inspected after operating measures (mainly including: grounding protection of the equipment power cord and shell, hanging warning signs saying "Manned operation, no closing", insulation protection for maintenance personnel, etc.).

② If a complete power outage is required: You must open each circuit breaker one by one, and then press the red button of cabinet 1# and cabinet 5#.

③ When cutting off the high-voltage power supply, the operating instructions of the high-voltage ring network switch cabinet must be followed carefully.

I hope I can help you clear up your doubts.