Improve power factor efficiently, avoid harmonic pollution;
Make sure the high quality of power supply for large medical devices;
Ensure the steady power supply of primary load
There are lots of primary load in hospital, such as operation room system, emergency devices. Hospital has large single-phase nonlinear harmonic loads, for example: Pressure regulating equipment of large medical devices(CT machine, B ultrasound, X machine, nuclear magnetic resonance), modern lighting device, inverter air conditioner elevator. Most of large medical devices requires high power supply quality, they are very sensitive to voltage fluctuation and harmonic. Harmonic source loads are distributed separately, when the device is working, harmonic varies fast.
There are lots of primary load in hospital, such as operation room system, emergency devices. Hospital has large single-phase nonlinear harmonic loads, for example: Pressure regulating equipment of large medical devices(CT machine, B ultrasound, X machine, nuclear magnetic resonance), modern lighting device, inverter air conditioner elevator. Most of large medical devices requires high power supply quality, they are very sensitive to voltage fluctuation and harmonic. Harmonic source loads are distributed separately, when the device is working, harmonic varies fast.
Suggestion: safe compensation+ active filter centralized filter
Use safe compensation device to improve power factor, the reactance ratio is advised to 14%, it suppress 3times harmonic resonance, so as to protect capacitor.
Use active filter centralized filter to dynamically eliminate the harmonic current produced by nonlinear loads, to avoid the harmonic to effect the sensitive devices