3.线圈通断的检测。将万用表置于R*1挡，测试中，若某个绕组的电阻值为无穷大，则说明此绕组有断路性故障。
4.判别初、次级线圈。电源变压器初级引脚和次级引脚一般都是分别从两侧引出的，并且初级绕组多标有220V字样，次级绕组则标出额定电压值，如15V、24V、35V等。可根据这些标记进行识别。
GE POWER BREAK/CIRCUIT BREAKER 2500A 2500 AMP TPS253F
BUDGIT 2 TON 4000LB CHAIN HOIST 2-1/2HP W/ POWER TROLLEY 230/460V 3PH 179" DROP
GOULDS 3196 4X6-13 CENTRIFUGAL PUMP 700 GPM 40 HP 40HP 3PH MOTOR 230/460V VOLT
GOULDS 4X6-13 3196 CENTRIFUGAL PUMP 700 GPM 40HP 40 HP MOTOR 230/460V VOLT 3PH
BUDGIT 2 TON 4000LB CHAIN HOIST W/ POWER TROLLEY 2.5HP 230/460V 3PH 168" DROP
VICKERS PVB29-RS-20-C-11 PISTON PUMP 1-1/4" NPT IN / OUT 1-1/4" SHAFT DIA.
RELIANCE EXPLOSION PROOF HAZARDOUS LOC 60HP 60 HP MOTOR 230/460V 3PH 1775RPM
GE DRIVE SYSTEMS AC DRIVE 460V 40KW 40 KW 3VVJJ509CD002 PD002
MAGNATEX 4X3X8 STAINLESS S/S MAGNETIC DRIVE PUMP 220GPM W/ 7.5HP 460V VOLT 3PH
YASKAWA USADED-60-T023 6KW 6 KW AC SERVO MOTOR 1000 RPM ENCODER UTOPH-81AUS
BENSHAW DRIVE 200HP 200 HP 240A 3PH 480V CBRS6-200-4-12
Marposs S/500 3414037003 Gage W/ Cord Refurbished
SQUARE D MEL36700LS ELECTRONIC TRIP 800A 800 A AMP CIRCUIT BREAKER 600V 600 VOLT
CM LODESTAR MODEL R 2 TON CHAIN HOIST 208-240/440/480V VOLT 3PH 112" DROP
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