Working principle of capacitive voltage transformer Capacitive voltage transformer is essentially a capacitor divider. For the sake of analysis, the capacitor string is divided into two parts: main capacitor C1 and voltage divider C2, as shown in the upper left figure. If the relative

4. Price issues The key to replace aluminum electrolytic capacitors with thin film capacitors is price. If the film capacitor with rated voltage of 700V can be used to replace the aluminum electrolytic capacitor, the capacitance of 1F ~ 2F per RMB can be replaced.Some capacitor manufacturers be

Three-phase bridge rectifier circuit or 12-phase rectifier circuit is not necessary to connect DC bus capacitor across the rectifier output because there is no current abrupt change in the application of load current no sudden change. Inductive potential produced by parasitic inductors of recti

1 preamble Aluminum electrolytic capacitor is the most critical component which restricts the life of inverter "target=" blank > inverter, and its main reason is the life of aluminum electrolytic capacitor, especially in the application of high harmonic current and high temperature. Compared w

Film capacitors are divided into four categories, according to the type of plastic film is polyethyl capacitance (also known as Mylar capacitor); polypropylene capacitance (also known as PP capacitor Mylar) belong to this category; polystyrene capacitance (also known as PS capacitor; polycarbona

The voltage value of the ceramic chip capacitor is a design nominal value indicating that this type of capacitor can work below this voltage for a long time, if the test is to be carried out, It is applied at both ends of the ceramic chip capacitor to a voltage greater than this value (for exa

In general, the capacitors used on audio controllers and frequency dividers are high frequency ceramic chip capacitors, because their capacity will be relatively large, through the use of metal plastic film to achieve better sound quality. The second is in the filter capacitance, its capacity c

The two different types of ceramic chip capacitance specification identification can be directly through the capacitor or circuit to judge. Generally speaking, can withstand high voltage, insulation is good, and more reliable, used in high-voltage circuit belongs to high-frequency ceramic chip c

Specification 1: 1000V-6000 V high frequency ceramic chip capacitance The high frequency ceramic chip capacitor is mainly used in the high stable oscillation circuit, so its stability requirement is relatively high, such as more common coupling capacitance and high voltage bypass will choo

By using two pin type 16V / 33000 μ F aluminum electrolytic capacitor shunt as filter capacitor rectifier filter circuit. When the average output voltage of rectifier is 9V and the output ripple voltage of load current 2.2A is as shown in Fig. 3, the oscilloscope used is F105B digital oscillogra