LKDG series hollow filter reactorDetailed product description：

1、 Purpose:
The LKDG filter reactor is used in low-voltage filter cabinets, connected in series with the filter capacitor, tuned to a certain resonant frequency, to absorb harmonic currents of the corresponding frequency in the power grid. There are a large number of harmonic sources such as rectifiers, converters, and frequency converters in low-voltage power grids, and the high-order harmonics generated by them can seriously endanger the safe operation of the main transformer and other electrical equipment in the system. After connecting the filter reactor in series with the capacitor, not only can it effectively absorb harmonics from the power grid, but it also improves the power factor of the system, playing a significant role in the safe operation of the system.

Environmental conditions for the use of LKDG series hollow filter reactors
1. The altitude shall not exceed 2000 meters.
2. The operating environment temperature is -25 ℃ to+45 ℃, and the relative humidity does not exceed 90%.
3. There are no harmful gases or flammable or explosive materials around.
4. The surrounding environment should have good ventilation conditions. If installed in a cabinet, ventilation equipment should be installed.

performance parameters
1. Can be used for 400V and 660V systems.
2. The rated insulation level is 3kV/min.
3. The temperature rise limit of each part of the reactor: the iron core does not exceed 85K, and the temperature rise of the coil does not exceed 95K.
4. The noise of the reactor shall not exceed 45dB.
5. The difference between the reactance values of any two phases of a three-phase reactor shall not exceed ± 3%.
6. Temperature resistance level H (180 ℃) or above.
7: Reactor quality factor 40

6、 LKDG series hollow filter reactor wiring method

Parameter table:
Filter reactors generally do not have standard specifications and are specially designed according to each filtering requirement. Taking three-phase filter reactors as an example, their typical parameters and dimensions are shown in the table below: Note: The following parameters are reference values and are not used as a basis for ordering

5 times filtering reactance:

Reactor model	Inductance of reactor (μ H)	Harmonic capacitor capacitance (μ F)	filtering times	Rated current (A)	Dimensions L × W × H (mm)	Installation size (mm)
LKSG-0.4-25/1986	one thousand nine hundred and eighty-six	two hundred and thirty-one	five	twenty-five	225*155*200	175*95
LKSG-0.4-31/1582	one thousand five hundred and eighty-two	two hundred and ninety	five	thirty-one	225*160*200	175*95
LKSG-0.4-37/1318	one thousand three hundred and eighteen	three hundred and forty-six	five	thirty-seven	250*170*200	200*100
LKSG-0.4-50/981	nine hundred and eighty-one	four hundred and sixty-two	five	fifty	265*190*215	215*120
LKSG-0.4-62/790	seven hundred and ninety	five hundred and seventy-nine	five	sixty-two	280*205*230	230*125
LKSG-0.4-74/659	six hundred and fifty-nine	six hundred and ninety-two	five	seventy-four	280*210*260	230*125
LKSG-0.4-93/527	five hundred and twenty-seven	eight hundred and sixty-one	five	ninety-three	285*200*290	215*125
LKSG-0.4-112/438	four hundred and thirty-eight	one thousand and twenty-seven	five	one hundred and twelve	265*200*355	215*125
LKSG-0.4-124/396	three hundred and ninety-six	one thousand one hundred and thirty-seven	five	one hundred and twenty-four	265*205*280	215*125
LKSG-0.4-149/329	three hundred and twenty-nine	one thousand three hundred and eighty-five	five	one hundred and forty-nine	280*220*420	230*145
LKSG-0.4-186/264	two hundred and sixty-four	one thousand seven hundred and seventy	five	one hundred and eighty-six	330*230*420	290*145
LKSG-0.4-248/198	one hundred and ninety-eight	two thousand two hundred and seventy-five	five	two hundred and forty-eight	325*285*480	265*175
LKSCG-0.4-310/58	one hundred and fifty-eight	two thousand eight hundred and ninety-five	five	three hundred and ten	350*330*520	290*205
LKSG-0.4-372/132	one hundred and thirty-two	three thousand five hundred and thirty-nine	five	three hundred and seventy-two	420*350*545	360*245

7th harmonic parameter table

Reactor model	Inductance of reactor (μ H)	Harmonic capacitor capacitance (μ F)	filtering times	Rated current (A)	Dimensions L × W × H (mm)	Installation size (mm)
LKSG-0.424/1009	one thousand and nine	two hundred and thirty-one	seven	twenty-four	205*155*155	155*95
LKSG-0.4-30/810	eight hundred and ten	two hundred and ninety	seven	thirty	205*165*155	155*95
LKSG-0.4-36/676	six hundred and seventy-six	three hundred and forty-six	seven	thirty-six	235*165*160	185*95
LKSG-0.4-48/506	five hundred and six	four hundred and sixty-two	seven	forty-eight	250*175*175	200*100
LKSG-0.4-61/402	four hundred and two	five hundred and seventy-nine	seven	sixty-one	250*185*195	200*100
LKSG-0.4-73/337	three hundred and thirty-seven	six hundred and ninety-two	seven	seventy-three	265*200*195	215*110
LKSG-0.4-91/269	two hundred and sixty-nine	eight hundred and sixty-one	seven	ninety-one	235*158*240	185*110
LKSG-0.4-109/225	two hundred and twenty-five	one thousand and twenty-seven	seven	one hundred and nine	235*185*260	185*110
LKSG0.4-121/191	one hundred and ninety-one	one thousand one hundred and thirty-seven	seven	one hundred and twenty-one	238*190*280	185*110
LKSG-0.4-146/159	one hundred and fifty-nine	one thousand three hundred and eighty-five	seven	one hundred and forty-six	250*205*315	200*125
LKSG-0.4-182/127	one hundred and twenty-seven	one thousand seven hundred and seventy	seven	one hundred and eighty-two	250*210*340	200*125

Note: When using filter reactors for intermediate frequency furnace filtering equipment, it should be noted whether a tap of ± 5% is required (due to the special nature of intermediate frequency furnaces, which is different from other reactors), which should be raised during the inquiry. Filter reactors are mainly used in active filters, while passive filters play a role in filtering out harmonic sources,