According to the national industry standard, the transformer is designed according to the 20-year service life. In fact, most complicated transformers in operation usually exceed this lifetime. In specific applications, according to the operating conditions, replace them early according to the requirements of the manufacturing industry.
For example, the state published documents stipulating to replace a batch of thin-insulated transformers with aluminum electromagnetic coils manufactured in 1976. Alternating current.
Class 1. According to the number of phases:
1) Single-phase electric transformer: used for single-phase electric load and three-phase transformer group.
2) Three-phase transformer: working voltage lifter for three-phase system software. What is the transformer?
2. According to the refrigeration method:
1) Dry test transformer: Of course, refrigeration or thermal convection refrigeration with centrifugal fans is the key to small-volume transformers such as multi-story buildings, high-speed toll stations, some lighting fixtures, and electronic circuits.
2) Oil-immersed transformer: oil is used as the refrigerating material, such as oil-immersed over-temperature protection, oil-to-air cooling, oil-immersed refrigeration, mandatory oil circulation system, etc. According to the main purpose:
1) Power engineering transformer: working voltage lifter used for power transmission and transformation system software.
2) Voltage transformers: such as transformers, voltage transformers, detection instruments, relay protection equipment, etc.
3) Experimental transformer: It can cause high voltage and carry out high voltage experiments on electrical equipment.
1. Place the step-down transformer in a ventilated, dry environment and fix it appropriately.(uses of the step-down transformer)
2. Connect the 24 V input to the power connector. The red wire is connected to the anode, the yellow wire is connected to the car key switch wire (ignition switch wire), and the black wire is connected to the cathode.
3. Use 12v output and 12v electrical connection together. The red wire is connected to the anode. The yellow wire ACC (REM) wire of electrical equipment. The black wire is connected to the cathode.
*The long-term working current of the electric appliance should be less than the rated current of the step-down transformer. Please conduct insulation treatment after wiring to prevent short circuits.
4. Turn on the car power supply to supply power to the step-down transformer, and the step-down transformer indicator light is on.
5. Turn on the power of the electrical switch and it can work normally.
1. Please do not exceed the rated current for a long time to avoid causing malfunction.
2. When the car engine is stopped, please do not use this product for a long time, so as to avoid the inconvenience of starting the car due to low battery voltage.
3. Please strictly observe the precautions for the electrical use of this product.
4. Do not use this product at high temperatures, humid and dusty places.
5. Please do not disassemble and innovate our products.