Load characteristics
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General load includes textile, viscose fiber and other industries Spinning motor (frequency control gear motor), all kinds of spinning machine, wire drawing machine load.
For example, the largest workshop of a textile mill is 280m long and 170m wide with a minimum workshop length of 172m and a width of 133m. The location of the textile enterprise workshop substation is generally not easy to reach the load center (workshop center) is radial power supply, but set in the workshop around the auxiliary room, so the low-voltage distribution lines longer.
Most of the design of the textile workshop is a power distribution box supply multiple devices, such as a power distribution box to provide power for eight spinning machines, many power distribution box heavier load, usually 200 ~ 300kW, in the spinning, Winder, twister and other regions exist in this phenomenon. Such power distribution boxes are set up on-site reactive power compensation, that is set in the power distribution box next to reactive power compensation box, both to improve the power factor, but also to ensure that the device does not start when the voltage fluctuations. Lighting, control circuit and auxiliary equipment are single-phase power supply, the appropriate phase compensation.
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solution
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For all low-voltage systems, configure the low-voltage dynamic reactive power compensation device in situ to absorb the main harmonic components in the system; in the heavily polluting low-voltage system, configure the parallel active power filter device; in the key load, configure the intelligent hybrid filter compensation device , In order to achieve the best governance effect. And phase compensation according to the appropriate allocation of phase compensation.
