Description:
8kvar 3 phase power capacitor 1.7micro meter polypropylene film forcore 2.Wax for medium 3.inside put release resistor
power capacitor in capacitor bank which was used in power system and electrical equipment . Any two pcs metal conduct Separated by an intermediate insulating medium, constitutes one power capacitor.
Power capacitor capacity was decide geometry and dielectric between the plates to determine the characteristics
When power capacitor was used in AC voltage , it will show reactive power for capacitor capacity , the unit is KVAR
1.Using condition
Low voltagepower capacitor supply the solution for improving power factor ,improve electric net energy
Factory power system
Residential area distribution system
Municipal commercial building
Transportation tunnel distribution system
power capacitor bank , outdoor distribution box
2.Specification for low voltage power capacitor
3.cylinderPower capacitor Installation direction
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4.cylinder power capacitor bank Installation notice
1 Install the capacitor, the capacitor wiring the best use of each individual cord is connected with the bus , do not use hard- bus connections to prevent damage to the assembly stress caused by the capacitor casing , seal damage caused by oil spills .
2 the capacitor circuit of any poor contact , may cause high-frequency oscillation arc work of the capacitor increases and the heat and the electric field strength early damage . Therefore , the installation must remain part of the electrical circuit and the ground contact.
3 lower voltage level by a capacitor in series run at a higher voltage level network, each stage of its shell on the ground, should be run through the installation of the equivalent voltage level insulators and other measures to enable a reliable insulation.
4 star connected via capacitors for a rated voltage high , and the Department ungrounded , the capacitor casing respond to insulation.
5 capacitors before installing a battery capacity to be allocated to white balance, deviation does not exceed 5% of the total capacity . When equipped with protection devices should also meet the runtime error does not exceed the current balance relay operating current requirements.
6 pairs of individual compensation capacitor wiring should be : Start or by direct induction motor starting rheostat , which improve the power factor of the capacitor and the motor can be directly connected to the terminal outlet , installed between the switching device or fuse not ; on a star - delta starter start induction motor , the best use of three -phase capacitors , each capacitor is directly connected in parallel per phase winding two terminals of the capacitor winding wiring always wears the same access .
7 pairs grouping compensation voltage capacitor should be connected at low voltage outside of the packet bus power switch to prevent packet bus switch off the self- excitation phenomena generated .
8 focus group of low-voltage capacitor compensation should a dedicated switch and the main switch mounted on the outside of the line , but do not install at low bus.
5.three phase 15kvar power capacitor Procedure
