Siemens Robicon power unit
Origin: Germany
Brand: Siemens
The Siemens Robbins LDZ31500082.375 power unit is a key component in high-voltage frequency converters, mainly used in high-voltage variable frequency speed control systems. This power unit has the characteristics of high efficiency, no pollution, and high power factor. By using a high phase-shifting transformer in series with the power unit, a current waveform that is very close to a sine wave is formed. The harmonic current on the grid side is less than 1.5%, the efficiency exceeds 97%, and the power factor is greater than 0.96, fully meeting the requirements of IEEE519-1992 for voltage and current harmonic content
Product Introduction
The LDZ31500082.375 power unit is mainly composed of the following parts:
Rectifier bridge: converts alternating current into direct current. There are two types of internal
packaging forms for rectifier bridges, each containing 6 or 2 rectifier diodes, used for three-phase
input terminals and bypass circuits.
Controllable silicon: used in charging circuits and bypass circuits, acting as a "switch".
Electrolytic capacitor: filters the DC rectified by the rectifier bridge.
IGBT module: converts DC power into AC power, mostly with a "dual tube" structure, and internally
encapsulates two sets of IGBT modules.
technical parameter
The technical parameters of LDZ31500082.375 power unit include:
Voltage level: 1400V, 1800V 2.
Current level: 75A, 100A, 150A, 200A, 300A, 400A, etc.
Application scenarios
This power unit is widely used in various industrial equipment that requires high-voltage
variable frequency speed regulation, such as large motors, compressors, water pumps, etc. By
accurately controlling the input voltage frequency and amplitude of the motor, precise control
of the motor speed is achieved, improving the reliability and efficiency of the system.
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