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High-Voltage Metallized Film DC Filter Capacitor - China Suppliers & Factory with 220μF to 8000μF Capacity

Introducing our high-voltage, high-capacity metallized film DC filter capacitor, designed for superior performance in demanding applications. As a trusted supplier from China, our capacitors offer impressive specifications to meet your electrical needs:

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Capacitance Range: 220μF to 8000μF
Capacitance Tolerance: ±10%
Voltage Range: 800V to 2000V
Maximum Current: 360Arms
Stray Inductance (Ls): 28nH to 40nH
Test Voltage Between Terminals: 1.5Un DC for 10 seconds
Test Voltage Between Terminals and Case: 4kVac at 50Hz for 1 minute

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Our factory is dedicated to producing reliable and efficient filter capacitors, ensuring quality and performance that stand out in the market. Choose our products for a robust solution to your high-voltage filtering needs!

    Technical Specifications

    Capacitance Range 220μF ~ 8000μF
    Capacitance Tolerance ±10%
    Voltage Range 800 ~ 2000 V
    Maximum Current 360Arms
    Stray Inductance (Ls) 28nH ~ 40nH
    Test Voltage (Terminals) 1.5Un dc 10s
    Test Voltage (Terminals to Case) 4kVac 50Hz 1min.

    Description

    DC filter capacitor used to be a energy storage component in Voltage source converter for flexible DC transmission system which provides smooth DC voltage for converter, meanwhile alleviate the voltage waving of DC side when the system fault happens. So that ease off the voltage ripple of DC side. Furthermore, preventing the IGBT from overvoltage and overshoot.

    Reference Datasheet

    DC filter film capacitor (Metal Rectangle housing)
    No CN
    (μF)
    Is max
    (nH)
    Irms
    (A)
    ESR
    (mΩ)
    Rth
    (k/W)
    Un 800VDC
    1 1200 36 86 0.5 0.47
    2 2000 45 140 0.44 0.34
    3 2500 55 175 0.42 0.30
    4 3000 62 210 0.41 0.20
    5 4700 28 200 0.37 1.36
    6 5600 33 230 0.36 1.06
    7 6800 35 280 0.35 0.98
    8 7500 37 300 0.35 0.90
    9 8000 40 330 0.34 0.90
    Un 1000VDC
    10 1000 36 80 0.49 0.47
    11 1500 45 120 0.45 0.34
    12 2000 55 160 0.43 0.30
    13 2500 62 200 0.41 0.20
    14 4000 28 200 0.37 1.36
    15 4700 33 220 0.36 1.06
    16 5600 35 280 0.35 0.98
    17 6800 37 330 0.34 0.90
    18 7500 40 360 0.34 0.90
    Un 1200VDC
    19 680 36 65 0.55 0.47
    20 1000 45 95 0.48 0.34
    21 1500 55 140 0.44 0.30
    22 1600 62 150 0.43 0.20
    23 3000 28 150 0.39 1.36
    24 3300 33 200 0.37 1.06
    25 4000 35 240 0.36 0.98
    26 4500 37 260 0.35 0.90
    27 5000 40 280 0.35 0.90
    Un 1400VDC
    28 470 36 56 0.58 0.47
    29 700 45 83 0.5 0.34
    30 1000 55 115 0.46 0.30
    31 1200 62 140 0.44 0.20
    32 3000 28 150 0.39 1.36
    33 3300 33 200 0.37 1.06
    34 4000 35 240 0.36 0.98
    35 4500 37 260 0.35 0.90
    36 5000 40 280 0.35 0.90
    Un 1600VDC
    37 350 36 50 0.62 0.47
    38 560 45 75 0.52 0.34
    39 700 55 95 0.48 0.32
    40 900 62 120 0.45 0.20
    Un 1800VDC
    41 280 36 42 0.65 0.47
    42 420 45 63 0.55 0.34
    43 560 55 85 0.5 0.32
    44 700 62 105 0.47 0.20
    Un 2000VDC
    45 220 36 38 0.69 0.47
    46 330 45 56 0.58 0.34
    47 470 55 80 0.51 0.32
    48 560 62 95 0.48 0.20

    Frequently Asked Questions

    What is the primary function of these DC filter capacitors?

    They serve as energy storage components in Voltage Source Converters (VSC) for flexible DC transmission systems, providing smooth DC voltage and alleviating voltage fluctuations on the DC side during system faults.

    What capacitance and voltage ranges are available?

    The capacitors offer a capacitance range of 220μF to 8000μF (with a ±10% tolerance) and a rated voltage range spanning from 800VDC to 2000VDC.

    How do these capacitors protect IGBT components?

    By effectively mitigating voltage ripples and smoothing the DC link voltage, they prevent the IGBT (Insulated-Gate Bipolar Transistor) from encountering destructive overvoltage and overshoot conditions.

    What are the test voltage specifications for safety and reliability?

    The capacitors undergo strict testing, including a terminal-to-terminal test voltage of 1.5Un DC for 10 seconds, and a terminal-to-case test voltage of 4kVac at 50Hz for 1 minute.

    What is the typical stray inductance (Ls) for these capacitors?

    The stray inductance (Ls) is kept very low, ranging from 28nH to 40nH depending on the specific model and design configuration.

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