Single And Three Phase Power Capacitors

Product Details:

In MKPgTM, we have concentrated the best of long years of know how and first-class production facilities, combined with eco-friend-liness and operational safety. The MKPgTM is well-suited for all conventional applications in power factor correction and can - if required - be adapted to your most critical and toughest requirements. It is pro-tected by enhanced self-healing dielectric and an irreversible overpressure disconnector (break-action mechanism, ..BAM"). Technical layout, testing and application accord to IEC 60831, UL810, CSA 22.2 and GOST1282-88, as well as Indian Standards IS 13340 and 13341. Approved by CSA (C/US) and COST.

Special Features:

• The winding elements are immersed in neutral insulation gas instead of liquids which would cause trouble in case of leakage. Thanks to the use of special metallizing patterns,developed in our own state of the art metal-lizing facilities, our SINE CUT slitting technology and optimized win-ding geometries, our MKPV" capacitors distinguish themselves not only by high AC-voltage load capacity, but also by outstanding suitability for high rms and surge currents. Unlike some of our competitors who proudly quote fantasy ratings, we have severely tested our capacitors beyond their rated values, allowing for sufficient margin and guaranteeing flawless operation within the specifications.

Specifications:

Product Details:

MKP UHD contain three delta-switched capacitor elements of short height and large diameter. The optimized combination of winding length, film size, and winding geometry minimizes inherent power losses and allows to achieve highest ratings of surge and rms currents as well as an overvoltage strength which before would have been known only of impregnated paper capacitors. By using selected low-loss, self-healing polypropylene films and sophisticated manufacturing techniques such as high-vacuum drying and special coating patterns, MKP UHDTM com-bine long service life with constant capacitance and outstanding switching stability.

Specifications:

Product Details:

The low-cost alternative for single and three phase capacitors with a rated current of up to 16 A/phase and diameters of 40 to 75 mm. Also available with plastic protective cap and mounted discharge resistors.

Rated Voltage Un:

• Root mean square of the max. permissible value of sinusoidal AC voltage in continuous operation. The rated voltage of the capacitors indicated in the data charts must not be exceeded even in cases of malfunction. Bear in mind that capacitors in detuned equipment are exposed to a higher voltage than that of the rated mains voltage; this is caused by the connection of detuning reactor and capacitor in series. Consequently, capacitors used with reactors must have a voltage rating higher than that of the regular mains voltage (compare U Con page 57). Unless indicated otherwise, all voltages stated in this catalogue are rms values.

Maximum RMS Voltage U max:

• Maximum rms voltage, which the capacitor can be exposed to permanently. This value also considers the maximum reactive power and the resulting power losses of the capacitor.

Test Voltage Between Terminals:

• Routine test of all capacitors conducted at room temperature, prior to delivery. A further test with 80 % of the test voltage stated in the data sheet may be carried out once at the user‘s location.

Pulse Current Strength:

• Depending on construction and voltage rating, the design of our capacitors permits short term inrush currents of 100...400 × IN and – in accordance with IEC 60831 – up to 5000 switching operations per annum as standard. However, when switching capa-citors in automatic capacitor banks without detuning reactors, higher loads are very often the case. This may generate negative effects on the operational life, especially with capacitors which are frequently connected and disconnected (e.g. primary stages in automatic capacitor banks). Moreover, even detuned capacitors may experience switching currents exceeding the permissible maximum current of the reactor and causing consequential damage to both capacitor and reactor.

Specifications: