In hospitals, power supply security is a key aspect of emergency management. The power supply equipment and lines must run continuously and stably to ensure that the power quality meets the requirements of medical equipment and to avoid interference with its normal operation.
High-end medical equipment (e.g. CT machines and MRI machines) require extremely high voltage stability. Peak and valley voltage variations in the grid and the impact of high-power inductive loads may lead to voltage fluctuations, which pose a threat to the safety of expensive equipment and may trigger serious economic losses. The response speed of a voltage stabilized power supply is an important indicator to ensure the stable operation of the equipment.
To minimize the impact of power quality on medical equipment, a three-phase automatic voltage regulator is recommended as a power supply solution. This voltage regulator is specially designed for imported precision medical equipments and adopts microcomputer control system, which has the advantages of high efficiency, energy saving, fast adjustment, high precision output, no noise and three-phase automatic balancing, etc., and there are no mechanical failures and carbon brush wear.
♦ Voltage adjustment: by adjusting the potentiometer, it ensures that the reference voltage of the voltage relay is equal, preventing the unstable voltage from affecting or damaging the medical equipment.
♦ Phase loss protection circuit: automatically cut off the output in case of phase loss or phase deviation to prevent burning the components of load equipment.
♦Over-voltage protection: when the voltage is too high, adjust the position of carbon brushes through the motor to activate the protection system and cut off the output to ensure safety.
♦Undervoltage protection: when the voltage is lower than 220V 380, it can’t meet the demand of equipment starting, the system will cut off the output to prevent equipment damage.
♦Surge impact: prevent damage to the CNC system or servo drive components, avoid insulation breakdown of electrical equipment and system crash.
♦Harmonic interference: Solve the impact of harmonic currents generated by non-linear loads on the CNC system to avoid data loss and communication failures.
Compared with other voltage stabilizers in the market, ZHENGXI’s SJW/SBW series three-phase high-power automatic voltage stabilizers are characterized by large capacity, high efficiency, no waveform distortion and balanced voltage regulation, and are able to withstand instantaneous overloading and realize long-term continuous operation. In addition, the equipment can realize unattended operation, manual and automatic control, free switching between utility and voltage regulator, and is equipped with over-voltage, under-voltage, over-current, time-delay and mechanical failure automatic protection devices.
The input voltage can jump up to 10% relative to the rated value, and the stabilization time is less than 1.5 seconds, which fully meets the demand for power quality of high-end medical equipment.
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