Voltage Optimisation - Healthcare
Our client is a hospital that serves the North Midlands, and they recently installed a new MRI unit. However, it was continually tripping out, which of course, makes it very temperamental to use for the hospital.
The Challenge
The new MRI unit was suffering nuisance, tripping daily. Numerous contractors looked at the issue, and almost all stated it was due to harmonics.
Johnson & Phillips were contacted for their specialist knowledge of power to 11kV, and when our engineers attended the site, they could identify the problem almost immediately. To prove this, our engineers measured the supply to provide visual data. The following was found:
- Instability within the power supply
- In rush attributed to incorrect PFC
- Voltage differences due to network movement
The Solution
Johnson & Phillips provided a full solution from the initial contact. All work was managed and manufactured in-house. Johnson & Phillips manufactured and installed the following:
- Pulsed volumetric stored energy to provide a ‘tank’ of energy to eliminate sags and swells.
- A voltage management transformer to provide a voltage cap between 400V and 415V.
- Supplied intrinsic metering to ensure power quality and did the job required.
The Results
Immediate solution with no more nuisance tripping, which means improved and more reliable patient care for the hospital.
Lights out? We answer.
Network failure, tripped protection or a site that has gone dark. Our disaster recovery engineers are on call every hour of every day, arriving in minutes, not hours.