teardown, completes the parts installation sequence and position record, according to the winding burn out, determine the cause of the burnt down before recording electrical wiring method, the installation position of the outer shell and do mark, some of the body has the wrong direction can't install location, open visual coil after burn out reason, have local interphase short circuit, turn-to-turn short circuit, lead wire short circuit, the start of the single phase winding burn out, running winding burn, three-phase burn out a phase or three phase completely burnt out, are available from burning situation to determine the cause of the damage to the coil of wire coil.
3
to split winding winding wiring method, lead wire, insulation, slot number, the number of coils, wire diameter model, the number of turns, each turn span, the stator iron core length and diameter is to do detailed records.
4
winding wire: according to the first line diameter model to determine with single or multiple retailer, package line, no matter and round, with a few thread must be the sum of the cross-sectional area and the original line model is consistent or very close to the (Refer to the error of plus or minus 0. 02mm)。
die length to fit, short not offline, long not beautiful, coil to shell.
good insulating paper cutting, winding, rolled off the production line. Offline note to tap, enameled wire can not damage skin insulating paint, lest cause turn-to-turn short circuit, and insulation paper isolation used to prevent the interphase short circuit, attention line direction should be consistent.
wiring way when remove the records, need to welding joint, with insulation casing insulation. The whole line, cable tie, when installation will not need to pay attention to let the rotor coil.
5
insulating paint, drying, winding coil tie up with megohm shake table test first after the insulation resistance, ensure insulation varnish, there is no problem to pour into the oven drying.
and
motor installation, check the winding drying condition, insulating paint not glue the hand, insulation resistance is greater than zero. 5 ohms, according to the reverse order of disassembly, installation of parts need to be replaced to maintain, to deal with again after installation, such as bearing, ball bearing clearance need to be replaced, every maintenance needs refueling and maintenance, installation is crucial, to ensure that each part is good, installed.
in a word, motor maintenance record is the original data, then try to do back to the original data. Way, more in the market for old and new copper enameled wire points, with a new copper, also determine the quality of the maintenance quality.
