Source: website: 16 mobile phone check onyou release date: 2016-11-14 17:58:25 [small]
I am engaged in air compressor repair industry for many years, recently encountered a wonderful problem, in the end how wonderful it, and we want to share the experience, and listen to me slowly. A few days before the receipt of customer phone warranty, the customer said his BLT-37KWpm+ as a model of the machine downtime, received a call from the first time I rushed to the scene as the customer said, air compressor PLC display, inverter fault, the machine can not. The frequency conversion screw machine Bolaite 37KW instructions, fault frequency to personal judgment, they will according to the idea of a normal maintenance, using the measured current clamp meter, ammeter display 82 amp, under normal circumstances, only 70 ampere current of air compressor 37KW at full load, no wonder will downtime, this is automatic shutdown protection controller, if the frequency of screw air compressor, the machine will show the estimated current overload or overload.

The problem is found, the next is the reason and treatment method for failure, mainly due to the general host overload is of three kinds, one is the host, detected no abnormal sound, basically is the power problem, check the three-phase power supply voltage is about 380V, this is very normal, third, oil and gas separator is blocked. Check the oil and gas pressure in the barrel 1.1MPa, the gas outlet of the tank pressure at 0.7MPa, the pressure difference gap in 0.4MPa, it is oil and gas separator is blocked, then remove the paint bucket, remove oil, oil is found blockage, good cover oil and gas replacement barrel cover, the boot load current normal. Fault release.
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