P77440H3N300 - FOXBORO
笼型电机修理时未装两端盖之前，绕组对机壳绝缘良好。装上后，绝缘电阻降低。这种现象可判断故障发生在绕组的两端部。造成绝缘电阻降低的原因，可能是漆包线上漆膜有局部碰破或绕线模偏大使绕组端部伸出较长。因端盖罩上后，端盖内壁靠近或接触故障点，所以使绕组绝缘电阻降低。
要排除这种故障，首先应判断故障在电机哪一端。 判断方法是：先装一头端盖，用500V绝缘电阻表测绕组的绝缘电阻，如很低，则说明这端绕组有故障存在。然后，拆下这头端盖，再装上另一头端盖，测量绕组的绝缘电阻，如也低，则说明另一端也有故障存在。在拆、装端盖的过程中，转子可不装。
确定故障端后，一般对绕组端部稍微整形一下，并涂些绝缘漆即可，如未解决问题，则可在绕组端部外侧容易与端盖内侧接触处垫上一层薄膜青壳纸，故障一般可消除。
SGDB-10VD YASKAWA SERVOPACK
A06B-6102-H215#?H520 FANUC SPINDLE AMPLIFIER
945-L4Y-AD-001 HONEYWELL SENSOR
DP5 SOLARTRON PROBE GAGE
MHDA1004N00 MODICON LEXIUM DRIVE
PSU-C/250/PSU-C?X/CZ DEEMSTOP POWER SUPPLY
72139G1 VOLKMAN DRIVE **REFURB**
CR03250 KOLLMORGAN SERVO AMPLIFIER
SGDB-1AADG YASKAWA SERVOPACK DRIVE
SGDC-020202ARB YASKAWA DRIVEPACK SERVO UNIT
TDM1.2-30-300-W?1-115 INDRAMAT AC SERVO CONTROLLER
DR2-08ACY162 YASKAWA DRIVE
NI12U-G18-ADZ30?X2-B3331 TURCK PROXIMITY SENSOR
LS50AR1DX9 DATALOGIC SCANNER LS50AR1DX9
TDM2.1-30-300-W?0-50101 INDRAMAT CONTROLLER
DDS02.1-W150-D INDRAMAT
TVD1.3-15-03 INDRAMAT POWER SUPPLY
TVD1.3-08-03 INDRAMAT POWER SUPPLY
MHD071B-061-PG0?-UN INDRAMAT SERVO
MAC112C-0-HD-3-?C/130-A-0-2/WI5?20LV/S001 INDRAMAT
A03B-0815-C001 FANUC I/O MODULE
A06B-0143-B077#?7000 FANUC
A02B-0166-B001 FANUC CONTROLLER
1394-SJT05-A ALLEN BRADLEY SERVO MODULE
1392-B150-RL-MC?-C2-F3-A-F1 ALLEN BRADLEY
SGDC-010101ARB YASKAWA DRIVEPACK SERVO UNIT
610 MDC 202 31 MODICON DRIVE
9487 XYCOM LCD MONITOR TOUCH SCREEN
8520-PS1A ALLEN BRADLEY POWER SUPPLY
91-01424-00 MODICON MONITOR
MP700 RENISHAW MOTORIZED PROBE HEAD
XBT-Z968 TELEMECANIQUE CONNECTOR CABLE
1592B ALTEC LANSING
R43GENA-R2-NS-N?V-00 PACIFIC SCIENTIFIC R43GENAR2NSNV00
EHST-3-FVE-11 VICKERS
14290 NIAGARA CUTTER
CRE124-B NIAGARA CUTTER
28-1203-2 SOLA CONSTANT VOLTAGE POWER SUPPLY
DKC01.1-040-7-F?W INDRAMAT AC SERVO ECODRIVE
A06B-0128-B677#?7208 FANUC
CIMR-G5C47P5 YASKAWA VARISPEED DRIVE
CACR-HR30BB YASKAWA SERVOPAK/DRIVE
SP500 1SU14001 RELIANCE AC DRIVE
1336S-B010-AA-E?N5-GM1-HA2 ALLEN BRADLEY DRIVE
1394-AM75 ALLEN BRADLEY AC SERVO AMPLIFIER
160-BA04NPS1 ALLEN BRADLEY AC DRIVE
2705-T11J3 ALLEN BRADLEY PUSH BUTTON MODULE
8720MC-B034-AN-?HAS2 ALLEN BRADLEY SPINDLE DRIVE
1336S-BRF-100-A?A-EN-HA2-L6 ALLEN BRADLEY AC DRIVE
2711-KA1X ALLEN BRADLEY PANELVIEW TERMINAL
A06B-0157-B088#?7076 FANUC SERVO MOTOR
A06B-0145-B088#?7075 FANUC SERVO MOTOR
A06B-0157-B084#?7008 FANUC SERVO MOTOR
A06B-0145-B077#?7075 FANUC SERVO MOTOR
A06B-0157-B075#?7075 FANUC SERVO MOTOR
A06B-0145-B075#?7075 FANUC SERVO MOTOR
