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Photovoltaic Wind Power DC Filter Capacitor

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Dielectric

The dc-link photovoltaic DC filter capacitor uses a low-loss metallized film. The self-healing film is a base film and a gradient resistance safety film using evaporation. The film is rolled into a cylindrical shape using fully automated equipment, and non-inductive winding is applied. The thin copper sheet connection method is used in the core, so that the capacitor has a small inductance and strong overcurrent and overvoltage capabilities. Based on long-term use and test results, our capacitor dielectric has good self-healing properties.


We use thickening on the edge of the film to increase the edge contact area, so that the contact between the film and the gold-sprayed surface is good, increasing the overcurrent capability of the product and reducing edge stress.


Solvent

The medium filled in the dc-link photovoltaic DC filter capacitor is to isolate the air. Without the protection of the filling medium, the metal coating will be oxidized, the metallized film will be more and more self-healed, and the capacity of the capacitor will become smaller and smaller. , the loss is getting bigger and bigger.

Therefore, when we put the capacitor into an aluminum shell and pour it with polyester, we need to vacuum dry the capacitor to protect the wound core and its surrounding environment, so that the capacitor's capacity is very stable during long-term use.

The dc-link photovoltaic DC filter capacitor is filled with polyester, so the capacitor has a high volume utilization ratio, good self-healing characteristics and over-voltage automatic protection characteristics. When an unexpected situation occurs during operation or the capacitor is heavily loaded, , the capacitor will be automatically disconnected to ensure safe operation.


Features:

Used in DC filter circuits, it can replace electrolytic capacitors

The equivalent series resistance is small and can withstand large ripple currents.

Feeling small

Self-healing

Long use time

Aluminum shell, resin potting



Applications:

Inverters for wind power generation and solar power generation

Vehicles such as electric and hybrid vehicles

Welding equipment, elevators, motor drives



Characteristics:

Compliance with Standards:IEC 61071, IEC61881

operating temperatures (Case): -40°C to +70 °C

storage temperature :-40 to +85°C

ΘHOTSPOT: ≤85°C

Capacitance tolerance: ±5% or ±10%

tanδ0 : 2 x10-3 (100Hz,20°C)

Test voltage terminal to terminal UTT: 1.5 URMS for 10 seconds

Test voltage terminal to case UTC: 3kV - 50Hz for 60 seconds

Permissible relative humidity: 75% Annual average on 30 days / year

IEC climate category: 40 / 85 / 21

Capacitance deviation in the operating temperature range of –25°C to +70 °C : ±1.5% max on capacitance value measured at +20 °C

Case components: Aluminum, plastic, 304 stainless steel

Terminals: Tinned copper screw

Installation: Whatever Position

Life Expectancy: ≥ 100.000 hours at Un

Failure quota:50 FIT

Recommended torque for screw connections: M6-3Nm,M8-6Nm


Dielectric

The dc-link photovoltaic DC filter capacitor uses a low-loss metallized film. The self-healing film is a base film and a gradient resistance safety film using evaporation. The film is rolled into a cylindrical shape using fully automated equipment, and non-inductive winding is applied. The thin copper sheet connection method is used in the core, so that the capacitor has a small inductance and strong overcurrent and overvoltage capabilities. Based on long-term use and test results, our capacitor dielectric has good self-healing properties.


We use thickening on the edge of the film to increase the edge contact area, so that the contact between the film and the gold-sprayed surface is good, increasing the overcurrent capability of the product and reducing edge stress.


Solvent

The medium filled in the dc-link photovoltaic DC filter capacitor is to isolate the air. Without the protection of the filling medium, the metal coating will be oxidized, the metallized film will be more and more self-healed, and the capacity of the capacitor will become smaller and smaller. , the loss is getting bigger and bigger.

Therefore, when we put the capacitor into an aluminum shell and pour it with polyester, we need to vacuum dry the capacitor to protect the wound core and its surrounding environment, so that the capacitor's capacity is very stable during long-term use.

The dc-link photovoltaic DC filter capacitor is filled with polyester, so the capacitor has a high volume utilization ratio, good self-healing characteristics and over-voltage automatic protection characteristics. When an unexpected situation occurs during operation or the capacitor is heavily loaded, , the capacitor will be automatically disconnected to ensure safe operation.


Features:

Used in DC filter circuits, it can replace electrolytic capacitors

The equivalent series resistance is small and can withstand large ripple currents.

Feeling small

Self-healing

Long use time

Aluminum shell, resin potting



Applications:

Inverters for wind power generation and solar power generation

Vehicles such as electric and hybrid vehicles

Welding equipment, elevators, motor drives



Characteristics:

Compliance with Standards:IEC 61071, IEC61881

operating temperatures (Case): -40°C to +70 °C

storage temperature :-40 to +85°C

ΘHOTSPOT: ≤85°C

Capacitance tolerance: ±5% or ±10%

tanδ0 : 2 x10-3 (100Hz,20°C)

Test voltage terminal to terminal UTT: 1.5 URMS for 10 seconds

Test voltage terminal to case UTC: 3kV - 50Hz for 60 seconds

Permissible relative humidity: 75% Annual average on 30 days / year

IEC climate category: 40 / 85 / 21

Capacitance deviation in the operating temperature range of –25°C to +70 °C : ±1.5% max on capacitance value measured at +20 °C

Case components: Aluminum, plastic, 304 stainless steel

Terminals: Tinned copper screw

Installation: Whatever Position

Life Expectancy: ≥ 100.000 hours at Un

Failure quota:50 FIT

Recommended torque for screw connections: M6-3Nm,M8-6Nm


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