What are the basic requirements and compliance requirements for installing power transformers in foo
What are the basic requirements and compliance requirements for installing power transformers in food machinery plants?
(1) transformer with capacity of 560kVA and above should adopt high voltage measurement.
(2) installed in residential buildings in the oil-immersed transformer, each capacity should not exceed 400kVA.
What are the basic requirements and compliance requirements for installing power transformers in food machinery plants? The secondary side of the transformer of the vacuum packing machine should be controlled by circuit breaker and protected by fuse.
(4) transformer installation should consider the operation, maintenance and transportation of convenience.
(5) the transformer nameplate project should be complete, installation position should be easy to live inspection
What are the basic requirements and conditions for the installation of power transformers in food machinery factories? The installation of the transformer for packaging machine should take into account the energy energy to check the oil color, oil level and temperature of the upper oil surface of the transformer and the gas relay.
(7) before the transformer thermometer installation and operation, should be checked to ensure that its seal is good with alarm instructions should be correct action.
What are the basic requirements and compliance conditions for installing power transformers in food machinery factories? For transformers with gas relays, the tubing from the transformer to the oil storage tank should have a 2 to 4 percent gradient. When installing the transformer, the top cover shall be installed horizontally along the gas relay. The glass window shall be outward for easy observation.
What are the basic requirements and conditions for the installation of power transformers in the plant? The connection between transformer's moisture absorbent and oil storage tank should be close, moisture absorbent should be filled and dry, and air vent should be unobstructed.
What are the basic requirements and conditions for attending food machinery factory to install power transformers? The door of transformer room and fence, should hang "high pressure danger" warning board, the door should add lock, of transformer room door fluctuation should make air convection ventilated shutter, shutter should add iron wire yarn. Multiple transformers shall be numbered uniformly.
What are the basic requirements and compliance requirements for installing power transformers in food machinery plants? The transformer will be subjected to vibration and impact during long-distance transportation and loading and unloading. The core may be dislocated. The core piercing bolt is often grounded due to insulation damage. Individual fasteners can also become loose and fall off. Through core inspection, problems can be found and dealt with in time. In addition, obvious defects of the products of the manufacturer can also be found through inspection, so as to facilitate timely contact with the manufacturer for removal. Therefore, when transformer is installed, the core should be checked. Core inspection shall comply with the following conditions:
What are the basic requirements and requirements for the installation of power transformers in food machinery plants? The inspection of packaging machinery and equipment transformer core is generally carried out in a dry and clean room. If the condition is not allowed and the inspection needs to be carried out outside, it should be carried out on a sunny day when there is no sand. Otherwise, tarpaulin should be built, in case of temporary rain or dust fall.
What are the basic requirements and compliance requirements for installing power transformers in food machinery plants? When the core is checked in winter, the ambient air temperature shall not be lower than 0°C. The core temperature of the transformer should be 10°C higher than the ambient air temperature.
What are the basic requirements and compliance requirements for installing power transformers in food machinery plants? The parking time of iron core in the air: in dry weather, when the relative humidity in the air is no more than 65 percent, the parking time in the air should not exceed 16 hours. The relative humidity in the air should not exceed 75 percent and should not be parked in the air for more than 12 hours. The calculation time is calculated from the beginning of oil discharge to the filling time. For transformers without oil transportation, the time is calculated by lifting the top cover or opening the cover plate.
(4) what are the basic requirements and compliance conditions for installing power transformers in food machinery factories? It is not suitable to lift the core for inspection in rainy or foggy days. In case of special circumstances, it should be carried out indoors with the temperature 10°C higher than the outdoor temperature and the indoor relative humidity not exceeding 75 percent. The transformer should be parked at least 24h after being transported indoors.
(5) the site should be clean, and dustproof measures.