The Importance Of Voltage Stabilizers And Ups Power Supplies For Medical Equipment

As an important tool for doctors to diagnose and treat patients, medical equipment occupies a very important position in the development process of hospitals. In order to ensure the normal operation of medical equipment, a stable and reliable power supply is required. The quality of the power supply directly affects the use of medical equipment.

With the advancement of medical science and technology, various precision instruments and equipment have been widely used in the medical field. The introduction of these equipment plays an important role in the diagnosis and treatment of patients. Since medical equipment has high requirements for the quality and voltage of power supply, if the power supply quality is poor, it is easy for medical equipment to freeze during operation, parts to be damaged, and data loss caused by program execution errors, etc., which will cause great medical safety risks and bring considerable economic losses to the hospital. At present, hospitals generally use automatic voltage stabilizers and UPS uninterruptible power supplies to ensure the normal and safe operation of medical equipment.

1. Selection of voltage stabilizer

Currently, there are many types of voltage stabilizers on the market, such as Automatic Voltage Regulator, AC compensation voltage stabilizer, CNC contactless voltage stabilizer, etc. When performing voltage stabilizer operation, the following aspects should be noted

1. Response time of power supply The response time of the automatic voltage stabilizer will be directly reflected on the medical equipment. The interior of the automatic voltage stabilizer is an electronic module structure. It uses the sinusoidal energy distributor technology to achieve the purpose of automatic voltage stabilizer control by controlling the size of the thyristor conduction angle, integrating voltage stabilization with anti-interference. Its response speed of 4ms/step is the fastest among all current AC automatic voltage stabilizers. The general automatic voltage stabilizer uses the rotation of the motor to drive the carbon brush to slide back and forth on the autotransformer to achieve the purpose of voltage stabilization. Its production cost is relatively low, economical and practical, and can meet the voltage stabilization requirements of most equipment. However, in terms of response speed, the automatic voltage stabilizer is undoubtedly dominant. It is usually used in the voltage stabilization of high-precision equipment such as B-ultrasound and hemodialysis machines.

2. Voltage stabilization accuracy The voltage stabilization accuracy of the automatic voltage stabilizer is ±2%. Under normal circumstances, DR, CT, MR nuclear magnetic resonance apparatuses do not require high voltage stabilization accuracy, so automatic voltage stabilizers can be selected. However, due to the quality of the power grid and the neutral point offset phenomenon, the output phase voltage 220V and line voltage 380V cannot achieve the expected voltage stabilization effect. In view of this situation, Shenzhen Jingyuan Technology Co., Ltd. has developed a zero line generator, which can be used with an automatic voltage stabilizer to accurately output the phase and line voltages.

3. Whether there is filtering performance In medical equipment, some imported instruments, such as blood cell analyzers, have very high requirements for power supply. Usually, the power supply they need has a very high voltage stabilization capability. Some slight changes may cause it to fail to work properly. In this case, it is necessary to use an automatic voltage stabilizer with a final output waveform harmonic content of less than 5%.