Causes a change in the way urine or stool exits the body as a result of asurgical procedure. Bodily waste is rerouted from its usual path because of malfunctioning parts of the urinary or digestive system. An ostomy can betemporary or pemmanent.

Modular design, any module failure will not affect the normal work of other modules, greatly improve the reliability of the whole equipment; It can realize smooth expansion of multiple units running directly in parallel. When multiple devices are added, the master/slave control mode is adopted. When multiple modules are connected in parallel, all modules can share a set of current transformer.

It can filter the odd harmonic current below 2~50 times at the same time, and can set the harmonic subsegment that needs 13 kinds of filtering according to the need. When the load current distortion rate is greater than 20%, the filtration rate is not less than 85%; When the load current distortion rate is less than 20%, the filtration rate is not 75%.

Active power filter (APF) is a new type of power harmonic control equipment made of modern power electronics technology and digital signal processing technology based on high-speed DSP devices. It consists of two main parts: command current operation circuit and compensation current generation circuit. The command current operation circuit monitors the current in the line in real time, converts the analog current signal into digital signal, sends the signal to the high-speed digital signal processor (DSP) for processing separates the harmonics from the fundamental wave, and sends the drive pulse to the compensation current generating circuit in the form of pulse width modulation (PWM) signal, drives the IGBT or IPM power module. A compensating current with equal amplitude and opposite polarity of harmonic current is generated and injected into the power grid to compensate or cancel harmonic current and actively eliminate power harmonics.