1, to avoid violent vibration regulator, to prevent corrosive gas and liquid flow into, to prevent that irrigation and dry and ventilated place, do not cover the fabric obstruct ventilation.
2, please use three plug (grounded) outlet, grounding screw on the unit should be properly grounded, otherwise the cabinet with a pencil measure will have live phenomenon, which is caused due to the distributed capacitance induction, it is a normal phenomenon, through the ground line eliminated. If the cabinet serious leakage, measure the insulation resistance is less than 2MΩ, it may be an insulating layer is wet or shorted line with the case, should identify the reasons troubleshooting before use.
3,0.5 ~ 1.5KVA low-power regulator uses a fuse as short circuit overcurrent protection purposes, 2 ~ 40KVA regulator role DZ47 circuit breaker for over-current, short circuit protection, such as a fuse blows frequently or circuit breaker trips frequently, You should check whether the electricity is too large.
4, when the output voltage exceeds the protected value (phase voltage protection value factory adjusted to 250V ± 5V), power supply automatic protection, cut off the power supply output voltage, and over-voltage lights, you should immediately check the grid voltage or shutdown regulation. Such as automatic power regulator happen (with input no output), you should check the mains voltage is higher than 28OV. If less than 280V should check whether the regulator failure. Find out the cause before use.
5, if the regulator output voltage deviation 220V more, please adjust the potentiometer on the control panel to the normal output voltage (input voltage range up to less than the regulator can not be adjusted).
6, when the mains voltage is often Input voltage low (<150V) or upper limit (> 260V) at the regulator, the limit is often affected by micro-switch touch, control failure prone. In this case the regulator or the regulator can not only raise (or lower only), you should first check micro-switch is damaged.
7, keep the machine clean and dust will hinder rotation of the gear, the impact of the output voltage accuracy. Please contact surfaces clean and maintain coil cleaning. Serious brush wear should adjust the pressure, in order to avoid carbon brushes and coil contact surface flashover. Brush length less than 2mm should be replaced. Use fine sandpaper to be lighting the coil plane arcing burned black.
8, three-phase input of the regulator must take over the zero line (neutral), or else the regulator can not be normal work load, and will damage the regulator and electrical equipment. Do not use the land line substitution zero line (but can be connected in parallel with the ground zero), the zero line can 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 reaching the rated load and load output voltage lower than the rated voltage, which is due to enter the line load surface is too small, or the load side range exceeds the rated capacity of the regulator, the load line drop too much, use the input voltage is below Regulators adjust the lower range, then replace the thicker wire or product input capacity increase.
10, when a large single load power (such as air conditioning, etc.), while the input line is longer, when the load surface is inadequate, seriously reduce the load operating voltage, it may be difficult to start using a load; when the load of work time and temporarily shut down, prone instantaneous overvoltage output power, such as the occurrence of such a phenomenon, not a regulator failure, should improve the input line (bold line, try to shorten the length of the input lines to reduce line pressure drop).
11, when a serious deviation from the regulator output voltage 220V, check ① input voltage within regulation limits; ② motor gear is serious wear and tear, the rotation is flexible; ③ limit switch is damaged: ④ coil plane is smooth; ⑤ Dashboard damage.