Emerson – Worldwide Corporate Lawyers

06/01/2017 Sharnbrook UK - Photography at Carter Sullivan for Design Junkie

Emerson – Worldwide Corporate Lawyers

Emerson Specialist Design Project for Worldwide Corporate Lawyers.

The Requirement:

The end user, a firm of Worldwide Corporate Lawyers had been suffering from a high volume of power failures caused by both external and internal influences. These included:

• Bus Bar Failure
• Phase Failure
• Generator Failure

The end user was looking for a solution that gave them consistent power with options for redundancy. This would avoid power failures occurring in the future. Our customer, Emerson invited us to take part in initial conversations the lawyers to see if we could put together a suitable long-term solution.

We were advised that the primary server room was located in the basement and the second local server room was based on the 6th floor. This is where their main offices were located.

The Solution:

Following positive initial discussions, Mark Anderson, Managing Director of Carter Sullivan performed a full on-site survey.

One of the key points noted when surveying the premises was that the basement server room only had one three-phase power supply available. The building generator backed up this power supply.  On the 6th floor there was no generator support but there were two separate risers available.

Carter Sullivan determined the size of the UPS systems required would be relatively low and recommended 10kVA for the basement and 6kVA for the 6th floor.

Following the on-site survey and further discussions with Emerson and the end user an enhanced N+N solution was developed.


(See PDF attachment for drawings)

The key feature for the basement was the inclusion of an Automatic Phase Transfer Panel.  In the event of an individual phase failure the panel would automatically transfer the load to an available phase.

Each rack was to be fed by both UPS systems so the client could utilise their dual power supplied enabled servers.

6th Floor:

(See PDF attachment for drawings)

On the 6th floor a Source Transfer Panel (STP) was included in addition to the Automatic Phase Transfer Panel.  Both risers would feed both of the newly installed UPS systems.  In the event of a riser failure the STP would automatically transfer to the available power source.

In addition to the STP, manual overrides were added into the new switchgear. This would ensure that in the unlikely event of a catastrophic power failure load transfer could still take place.

The intelligently designed system made the most of the available on-site infrastructure and provided the end user with an enhanced redundancy facility above and beyond a standard N+1 solution.

After considering the potential points of failure, Carter Sullivan designed a system that would in normal operation, mitigate or reduce the risk to the load considerably.  Allowances were made for:

• Mains Failure
• Phase Failure
• Source Failure
• UPS Failure
• Circuit Fault

In the majority of fault condition scenarios the system would automatically react to the fault.  In exceptional circumstances manual intervention would be needed.

Why Carter Sullivan:

Since 2005 Carter Sullivan has built up a comprehensive working knowledge of designing UPS back-up systems within complex environments. Our understanding of what is required to ensure companies are fully protected is unrivalled across the industry.

It is not just the design stage where we add value to our customers businesses. We are heavily involved at every stage of a project. From initial consultations through to the manufacture, installation and commissioning of systems, we ensure our customers receive the best levels of service and support at all times.

We breed confidence in customers by giving them the tools they need to deliver their end user the best designed systems possible.