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有一台长轴式深井泵,电动机在运行时抖动较大,不能正常工作,怀疑是电动机轴承磨损过度。换了新轴承后仍抖动,找不准毛病,就换了一台同样型号的电动机,但运行时仍抖动。后来发现电机泵在起动时不抖动,经分析认为是手动减压起动器运行时工作触头接触不良,造成电动机断续缺相运行而引起的抖动。经检查果然是起动器有一组触头接触不良,修复后电动机运转正常。 另有一台长轴式深井泵,配套电动机是18.5千瓦,配用的手动自耦减压起动器是20千瓦,机泵起动后抽水几分钟,起动器就自动脱
There is a long axis deep well pump, the motor jitter larger at run time, can not work, suspected to be excessive wear motor bearings. After changing the new bearing still jitter, find fault, they changed a same type of motor, but the operation is still jitter. Later found that the motor pump does not jitter at start-up, the analysis that is manually decompression starter operation contacts poor contact, causing the motor to run intermittently caused jitter. After checking it really is a group of contacts have a bad contact, motor repair after normal operation. Another long-axis deep well pump, supporting the motor is 18.5 kilowatts, equipped with a manual autoclave starter is 20 kilowatts, pumping a few minutes after the start of the pump, the starter automatically off