Custom DC High Voltage Pulse Discharge Energy Storage Film Capacitor Factory

What factors affect the life of DC high-voltage pulse discharge energy storage film capacitors?

Working environment factors
Temperature: Temperature is one of the key factors affecting the life of capacitors. Excessive temperature will accelerate the aging of the dielectric inside the capacitor, reduce the performance of the dielectric, increase the equivalent series resistance (ESR), and then cause the capacitor to heat up, forming a vicious cycle and shortening its life. For example, when a capacitor works in an environment exceeding its rated temperature, its life may be halved for every 10°C increase. On the contrary, too low a temperature may make the capacitor material hard and brittle, reduce its flexibility and performance, and also have an adverse effect on the life.
Humidity: Humidity also has an important impact on the life of capacitors. A high humidity environment may cause the outer shell, electrodes and other components of the capacitor to become damp, causing corrosion, leakage and other problems. Moisture intrusion into the capacitor will reduce the insulation performance of the dielectric, increase dielectric loss, and may even cause a short circuit, thereby damaging the capacitor. During the production process of its products, Antai Power Capacitor Co., Ltd. will strictly control the humidity of the production environment and take measures such as moisture-proof packaging to improve the reliability and life of the product in different humidity environments.
Altitude: Changes in altitude will affect the air pressure and air density around the capacitor. At high altitudes, the air pressure decreases, the air is thin, the heat dissipation conditions become worse, and the insulation performance inside the capacitor may also be affected, and corona discharge and other phenomena are prone to occur, which will affect the life of the capacitor.
Electrical performance factors
Voltage: The voltage applied to the capacitor is an important factor affecting its life. If the operating voltage exceeds the rated voltage of the capacitor, the electric field strength inside the capacitor will increase, resulting in an increased risk of dielectric breakdown. At the same time, the loss of the capacitor will increase, the heat will be serious, the dielectric aging will be accelerated, and the life will be significantly shortened. Even within the rated voltage range, voltage fluctuations may have adverse effects on the capacitor. For example, frequent rises and falls in voltage may cause repeated charge and discharge of the charge inside the capacitor, resulting in additional loss and heat. Jiande Antai Power Capacitor Co., Ltd.'s DC high-voltage pulse discharge energy storage film capacitor has good voltage resistance and can work stably within the rated voltage range. The reverse peak voltage of its products can reach a high level, which helps to increase the service life of the capacitor in a complex voltage environment.
Current: When the capacitor is working, a certain current will pass through it, including ripple current and pulse current. When the ripple current or pulse current is too large, the resistance inside the capacitor will generate more heat, causing the temperature to rise and accelerating the aging of the capacitor.
Frequency: The operating frequency also affects the life of the capacitor. Under high-frequency conditions, the dielectric loss of the capacitor will increase, resulting in increased heating. At the same time, high-frequency current will change the electric field distribution inside the capacitor, which may cause partial discharge and other phenomena, thereby reducing the insulation performance and life of the capacitor.
Capacitor's own factors
Material quality: The material quality of the capacitor is directly related to its performance and life. High-quality film materials have good insulation properties, low dielectric loss, high voltage resistance and good self-healing properties, and can withstand large electric field strength and charge and discharge times, thereby extending the life of the capacitor. Jiande Antai Power Capacitor Co., Ltd.'s DC high-voltage pulse discharge energy storage film capacitors are carefully selected, using iron shells, high vacuum oil filling and other processes, with high specific energy density and strong capacitor energy storage. These high-quality materials and processes help improve the overall performance and life of the capacitor.
Manufacturing process: Advanced manufacturing processes are essential to ensure the quality and life of capacitors. For example, during the winding process of the film, if the winding is uneven, the electric field inside the capacitor will be unevenly distributed, and local overheating and discharge are prone to occur. In terms of the connection and packaging process of the electrode, if there are problems such as cold welding and poor sealing, the capacitor will have problems such as poor contact and moisture during use, affecting its life.
Design rationality: The design parameters of the capacitor, such as capacitance value, withstand voltage value, capacity to volume ratio, etc., need to be reasonably designed according to actual application requirements. If the design is unreasonable, such as improper selection of capacitance value, the capacitor may be in an overload or underload state during operation, affecting its performance and life.

Application scenario factors
Load characteristics: Different application scenarios have different requirements for the load characteristics of capacitors. For example, in applications such as rail transit traction or ship drive AC, capacitors need to withstand large power and current changes, which puts higher requirements on the life of the capacitor. In some relatively stable load environments, the life of the capacitor may be relatively long. Jiande Antai Power Capacitor Co., Ltd.'s products are suitable for various application scenarios such as various high-power industrial inverters, inverters, rail transit traction or ship drive AC power. Its products fully consider the impact of different load characteristics on the life of capacitors during the design and production process. By optimizing the design and material selection, the service life of the product under various complex load conditions is improved.
Number of charge and discharge cycles: The number of charge and discharge cycles of a capacitor is one of the important factors affecting its life. In some frequent charge and discharge application scenarios, such as pulse power applications, capacitors need to be charged and discharged multiple times in a short period of time, which will fatigue the materials inside the capacitor and gradually reduce its performance and life. High-voltage pulse discharge energy storage film capacitors have good self-recovery characteristics and pulse current resistance, can withstand a high number of charge and discharge cycles, and can still maintain good performance and long life in frequent charge and discharge application scenarios.

The life of DC high-voltage pulse discharge energy storage film capacitors is affected by a combination of multiple factors. In practical applications, it is necessary to reasonably select and use capacitors according to specific working environment, electrical performance requirements, application scenarios and other factors, and take corresponding measures to optimize their working conditions to extend the service life of capacitors.