16 Guide on Installation and Debugging of Filters
Technical data
This chapter describes the technical specifications of the harmonic filter, such
as operating conditions, frame size and parameter settings.
* In a typical motor drive system, the THDI can be reduced to less than 19% at any load ratio.Under
100% load ratio, the THDI can be controlled below 10%.
Power connection
Rated voltage
Three-phase, U
N
=380 to 415V +10% to -15%
Protection class IP00
Harmonic filtering effect*
Under full load conditions, the total harmonic current
distortion at the input of the filter (THDI) is less than 10%
(the background voltage THDU is lower than 2%, and the
ratio between the short-circuit power of the grid and the
installed load is higher than 66)
Frequency 50 Hz
Insulation class Overvoltage category III (in accordance with EN61800-5-1)
Overheating protection 155 ℃
Operating conditions
Cooling mode Air cooling
Ambient temperature
(operating)
Under full load, -25 ℃ to +40 ℃
Storage temperature -25 ℃ to +70 ℃
Work altitude 0 to 2000m
Relative humidity 0 to 95%, no condensation
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