1, to avoid violent vibration, corrosive gases and prevent liquid logistics into, to prevent by irrigation and placed in dry air, not to obstruct ventilation covered with fabric.
2, use three plug (grounded) outlet to the grounding screw on the machine properly grounded, otherwise the case will be measured with test pencil charged phenomenon, which is due to induction caused by the distributed capacitance, is a normal phenomenon, can be ground to eliminate. If the case of serious leakage, the measured insulation resistance is less than 2MΩ, may have been damp insulation or short circuit and chassis, and then be used to identify the reasons for troubleshooting.
3, 0.5 ~ 1.5KVA low Line Reactor circuit with fuse for overcurrent protection purposes, 2 ~ 40KVA regulator role DZ47 circuit breaker for over current, short circuit protection purposes, such as blown fuses or circuit breakers often trip frequently, should check whether the electricity is too large.
4, when the output voltage exceeds the protection value (the factory to protect the value of phase voltage adjustment 250V ± 5V), power supply automatic protection, cut off the power supply output voltage, and over-voltage light, the user should check the mains voltage or power off immediately regulators, such as voltage regulators automatically power down occurs (there is no input output) should check the mains voltage is higher than 28OV. If less than 280V should check the voltage regulator is faulty. Reasons to be identified before use.
5, if the regulator output voltage deviation from the 220V more, please adjust the control panel potentiometer to the output voltage is normal (less than regulator input voltage range can not be adjusted).
6, when the mains voltage is always lower in the regulator input voltage (<150V) or maximum (> 260V), the limit micro-switches are often affected by touch, high incidence of control. Then the regulator or the regulator can not only increase (or only lower), micro-switches should be checked for damage.
7, keep the machine clean and dust hinder gears rotate, affecting the output voltage accuracy. Please contact surfaces clean and maintain coil cleaning. Brush wear serious pressure should be adjusted to avoid brush and coil contact surface flashover. Brush length less than 2mm should be replaced. When the coil plane flash burned black fine sandpaper to polish the application.
8, three-phase voltage regulator input must take over the zero line (neutral), or Transformer suppliers can not work and will damage the regulator and electrical equipment. Do not use land-line alternative to the zero line, the zero line may not access the fuse.
9, the regulator output voltage is lower than the rated voltage (220V or three phase 380V), you should check the input voltage is too low. When the no-load rated output voltage and load less than the rated voltage, which is due to the input line set surface is too small, too much load line drop, voltage regulator with input voltage adjustment range below the lower limit, then more should be replaced thick input wires.
10, when a large single load power (such as air conditioning, etc.), and the input line is longer, containing surface is inadequate, the work load voltage is severely degraded, may be difficult to start using the load; Shi temporarily shut down when the work load, prone to instantaneous power output over-voltage, such as the occurrence of this phenomenon, not a regulator failure, should improve the input line (bold line to shorten the length of the input line to reduce the line pressure drop).
11, when the regulator output voltage deviation from 220V, you should check whether the regulator input voltage ① range; ② motor gear is badly worn, rotation is flexible; ③ limit switch is damaged: