MUPL power capacitors of low voltage is thethree-phase integrated capacitor designed & manufactured for improvement ofpower factor and harmonic filtering, and it is mainly used for the harmonicload industrial environment, using dry, self-healing, and explosion-proof technology.High quality metalized polypropylene film is selected for dielectric material,and these measures can ensure that the capacitor has a longer working life andlow loss. The capacitor of MUPL is dedicated to improving the thermal responseand the packaging.

◆ Vacuum infusion: thewinding unit should be heated first, then dried within a predetermined time,and then the air and moisture from the inside of the capacitor is discharged ina vacuum environment, which can avoid the oxidation of the electrodes and thepartial discharge. Next the capacitor is sealed in a steel container, and thiscomplex process can ensure that the capacitor has excellent capacitancestability and security. Meanwhile, advanced manufacturing technology brings acompact shape and rugged construction. Density,many unique process are the ahead of the industry:

◆ Cutting technology of thickedges and special film: the optimal combination of corrugated and smoothcutting can produce the maximum effective surface for metal spraying or bondingprocessing, which means suppression capability of high inrush current. In addition,it also able to be fully solved that the edge of the contact problem caused byeffect of the winding film edge contraction

◆ MKK/MKP technology:capacitor products are inseparable in many areas, and the characteristics andcosts of the capacitor also should be considered, so a variety of dielectrictechnology development are appeared to meet the needs of different fields.MKK/MKP technology has been proven to be the most suitable and most economicaltechnology today in the field of electricity reactive power compensation andharmonic filtering. Using MKK/MKP technology, dielectric thickness is dependedon the rated voltage level. The technology of metal coating as well asadditional contacts or the edge of the cross-section coating strengthen, hasplayed an important role for the suppression of large current and guaranteecapacitance stability.

Shell Blank

Fixed piece

Connection

Overvoltage protection (breakpoint)

Element

Thick edge

Corrugated cutting

When the capacitor is overheating, overloador near the end of life, phenomenon of breakdown is likely to occur. This willproduce a small arc, which can make the metal layer in the breakdown area evaporatedwithin a few microseconds, and the here the gas pressure generated by the hightemperature turns metalized layer of gasified blowing out of breakdown regionat the same time, so the insulating region without metalized layer is forming.During the process of breakdown and after the occurrence of breakdown occurs, thecapacitor can still work correctly. The loss of the electrical capacity causedby the self-healing is less than 100pF,that means the extent of losses only canbe checked by sophisticated measuring instruments.

Metal electrodes

Metal vapor air gap

Breakdown channel

Gas dielectric

The alternative to a region of the metallayer and the dielectric layer (insulating region)

Electronic components do not have the unlimitedservice life, so as the self-healing capacitors. Predictable shorted circuitrarely be produced for polypropylene capacitors, so only HRC fuse or circuitbreaker cannot provide adequate protection. All capacitors of this manual areequipped with pressure separator. When a large number of electrical breakdown (inthe within IEC60831 description) are occurred in the capacitor because of overheating,overload or near the end of life, the length of the capacitor will changecaused by the roof bent or expansion the concave edges. When the expansionexceeds the limit, the internal cable will be separated, and the cable alsowill be cut off from the capacitor.

AKSON capacitive pressure protectiondiagram

Roof arch

Pressure

Should the breakpoint

Selection Table

Rated voltage

Model

Rated Capacity

Loss

Size diameter high

Weight

Rated capacitance

Installation dimensions

Installation dimensions of single-phasecapacitor

Model

Ground terminal

Installation dimensions of three-phasecapacitor