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These disturbances are mainly pulse disturbances

1. The level of the traction machine is <2/1000, and the clearance between the traction machine device and the traction machine is <1/2 wire diameter. 2. The gearbox oil (N320)) complies with company regulations, and the oil level should be on the rotor centerline. 3. The motor oil (N62)) complies with company regulations, and the oil level should be on the rotor centerline. 4. The center of the rope head board should be determined by the car top wheel and the counterweight center. There should be a buffer rubber between the rope head board fixing frame and the cement board. 5. The brake moves flexibly. When braking, the brakes on both sides are tight and evenly fit. The average value of the gaps on both sides is 0.7 mm.

Eliminating interference and noise is just an ideal. Currently, it cannot be absolutely eliminated. It can only reduce electromagnetic interference and reduce electromagnetic interference noise through some technical means. From the analysis of the previous noise sources, since the source of some noise current is the inverter, this noise current must flow back to the inverter, otherwise the noise current will seriously interfere with the elevator power circuit and control circuit. These disturbances are mainly pulse disturbances and continuous disturbances. If such disturbances are not eliminated, they are very harmful, and the above-mentioned unsafe phenomenon or failure will occur in elevator operation. In most early frequency conversion drag elevators, the motor power line of the motor was not provided with a shielded sleeve, and the noise current in the line could not be effectively returned through the shielded line and the PE (same ground protection) connection point, which induced electromagnetic interference noise. What's more, some inverter connection lines and output power lines are not equipped with shielded wires.

When there is a danger of power or electrical energy in the area of ​​the pit, water or wet pits must never be entered. Water must be cleaned out or the power must be cut off and locked out before inspection or implementation work can be performed. First notify the user, install a guardrail, and cut off the main power after confirming that there are no people in the car.

Cooperate with the user to Sightseeing Lifts Manufacturers out the cause of the accumulated water. If the water enters from the entrance of the ground floor hall, drain the accumulated water from the bottom pit. If it infiltrates from the well, it is necessary to identify the water source, plug the loopholes, and cooperate with the user to drain the accumulated water. If electrical equipment has been exposed to water, first measure the insulation and consider replacing components as appropriate.

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