The actual running current of 132kw-8 electric motor is 220A ~ 240A, 4-tableAir compressorShare An air storage tank, and the actual pressure required is 0.6 ~ 0.7Mpa, remote pressure gauge indication is 0.64Mpa. How to reform?
One, four setsAir compressorChange only one (132kw-8) Auxiliary with a pressure transmitter, and feed back the actual pressure of the sampling pipe network to the inverter. Inverter automatically adjusts output voltage through software (PID function. (That is to reduce the actual power) to meet the actual gas consumption. After agreement, in order not to affect the motor temperature, we adopt RB600-3P160G type (160kw inverter ).
II. Adopt manual switching of power/frequency conversion. If there is something wrong with the frequency converter, it can be changed to power frequency operation. It really does not affect the actual production of the factory, ensureAir compressorLong-term operation.
Third, according to the requirements of customers' pressure, the network management pressure can be set to 0.6Mpa, because there are fourAir compressorAt the same time, we will save the electric energy wasted by the three unmodified ones through the one converted by frequency conversion.
IV. According to the practical experience, the rebuilt inlet current is about 190A, and the saving power is about 30/2 = 15kw. Power = kilowatt/hour (namely 15 degrees/hour), running in 24 hours, saving power per day = 15*24 = 360 degrees. Calculate by 0.5 yuan per degree = 360*0.5 = 180 yuan/day. Monthly = 180*30 = 5400 yuan.
V. Benefits after frequency conversion transformation of air compressor:
1. Save Energy; 2. Reduce the operating cost; 3. Increase the precision of pressure; 4. Extend the service life of compressor; 5. LowerAir compressorNoise
