1, to avoid violent vibration, corrosive gases and prevent fluid flow into and prevent under irrigation and dry and ventilated place, do not obstruct ventilation fabric cover.
2, please use the three-plug circuit breaker (grounding) receptacle, grounding screw on the unit must be properly grounded, otherwise the cabinet with a pencil measure would have charged phenomenon, which is caused due to the distributed capacitance induction, is a normal phenomenon, through the ground wire eliminated. If the cabinet serious leakage, measure the insulation resistance is less than 2MΩ, may be an insulating layer is wet or shorted circuit and chassis, should identify the reasons for troubleshooting before use.
3, 0.5 ~ 1.5KVA small power regulator uses fuses for overcurrent circuit protection purposes, 2 ~ 40KVA regulator role DZ47 breaker for over-current, short circuit protection, as is often blown fuse or circuit breaker trips frequently, should check whether the electricity is too large.
4, when the output voltage exceeds the protection level (phase voltage protection value adjusted at the factory 250V ± 5V), power supply automatic protection, cut off the power current transformer supply output voltage, over-voltage lights at the same time, the user should immediately check the grid voltage or shutdown Regulators such as the occurrence of automatic power regulator (with no input output), you should check the mains voltage is higher than 28OV. If less than 280V should check whether the regulator failure. The reason to be identified before use.
5, if the regulator output voltage 220V deviate more, please adjust the potentiometer on the control panel to the normal output voltage (input voltage reach the voltage range can not be adjusted).
6, when the mains voltage is often the input voltage limit (<150V) or upper limit (> 260V) at the regulator, the limit is often affected by micro-switch touch, control failure prone. Then the regulator or the regulator can not only increase (or reduce only), you should first check the 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. Brush wear serious pressure should be adjusted in order to avoid the contact surface arcing brushes and coils. Brush length less than 2mm should be replaced. Application fine sandpaper to be flat lighting coil arcing burnt black.
Picture ⒏ three-phase voltage regulator regulator input AC Contactors must take over the zero line (neutral), or else the regulator does not work, and will damage the regulator and electrical equipment. Do not use the land line to replace the zero line, zero line can not access the fuse.
9, the regulator output voltage is below the rated voltage (220V or three phase 380V), you should check the input voltage is too low. When you reach the rated voltage at no load and load output below the rated voltage, which is due to the input line carrier surface is too small, too big load line drop, using the input voltage falls below the lower limit of the regulator adjustment range, then should be replaced enter thicker wire.
10, when a large single load power (such as air conditioning, etc.), while the input line is longer, the carrier surface is inadequate when the load is severely reduced operating voltage, it may be difficult to start using 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 the regulator output voltage is a serious deviation from 220V, you should check whether the input voltage ① within the voltage range; ② motor gear is badly worn, rotation air circuit breaker is flexible; ③ limit switch is damaged: ④ coil plane is smooth; ⑤ Dashboard for damage
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