Three-phase voltage regulator in the wiring process should pay attention to what?
1, three-phase voltage regulator end of the power cord into the line diameter the size of the current value of the regulator should meet the appropriate capacity.
2, the regulator dual cabinet or cabinet structure, the bus between cabinets must be connected by color, other on-line should be numbered connection.
3, into the line at the end of the power cord should be connected to the input of the three-phase voltage regulator, according to the color of buses: yellow then A-phase, B-phase green then red then C phase, outlet end of the power cord should be connected to the regulator the output of the press bus chatter color: yellow then A-phase, B-phase green then red then C phase, to zero on the next "N" of the terminal, chassis shell should and earth connection, grounding resistance should be less than 0.4 ohm .
The first step in the work of the three-phase voltage regulator after commissioning personnel is one of the more important work is to check Regulator ground, this work is the key to ensure reliable operation of the three-phase voltage regulator, must do a good job. Three phase Regulator ground examination should note the following three aspects:
1. Check the grounding line is solid and reliable, the fastening screws are loose phenomenon, if loose, must be tightened.
2. Check the control board grounding Weld, if re-welding.
3, the electrical components on the inspection panel, such as meter, transformer ground connection is there the phenomenon of virtual access, if any, must be reconnected.
Above it is on a three-phase voltage regulator in the wiring process considerations.