Solutions for Data Centers

High Voltage Maintenance delivers a comprehensive portfolio of focused services and understands the complexities of ensuring the highest quality and availability of power. We offer solutions for data centers including:

HVM | Industry Centers | Data Centers

Data Centers

We understand that seconds of network downtime can mean millions in lost revenue. The experts at High Voltage Maintenance have the experience, capabilities, and resources to help data center facility operators understand these maintenance complexities and how to achieve “high nine” levels of availability from their electrical equipment. High Voltage Maintenance can assist you in developing a plan to make sure the power system in your mission critical facility operates efficiently.

Our experts can customize solutions that cater to your needs, utilizing a variety of services aimed supporting your operational goals. Our solutions for data centers will:

  • Increase system availability and efficiency
  • Reduce overall costs
  • Monitor asset reliability
  • Ensure data integrity and 24/7/365 power to critical systems
  • Complete distribution system optimization

Beat the Heat!

Infrared / Thermography

Most electrical equipment generates heat during normal operations. Usually, this heat is safely dissipated on its own. But corrosion, loose connections, misalignment or overload conditions can cause components to generate excessive heat, resulting in potentially serious problems.

  • Infrared (IR) inspections will:
  • Detects trouble spots while equipment is energized
  • Improves power system reliability
  • Eliminates unplanned downtime by detecting problems prior to an unplanned outage
  • Reduces emergency repairs and maintenance costs and extends the life of the equipment
  • HVM’s IR inspections are performed while your system is energized and operating, avoiding production downtime. And unlike many other predictive maintenance tests, infrared inspection does not require physical contact with the equipment.

As a critical part of a complete predictive or condition-based maintenance program, infrared inspection findings are carefully documented in a comprehensive electronic and/or paper report that includes:

  • High-resolution color digitized photographs and thermograms
  • Recommendations for correction or repair
  • Timely delivery of results prior to scheduled maintenance shutdown
  • Recommended by ANSI/NFPA 70B Electrical Equipment Maintenance Standard and most insurance companies, annual infrared inspections can identify potential problems before an incident or failure occurs, avoiding costly unscheduled downtime and business interruption

When included as part of a planned maintenance program from Emerson, it allows you to identify and deal with emerging problems early enough for maintenance to be performed, reducing emergency repair and maintenance costs, improving overall system reliability and extending the life of your equipment.

Features & Benefits

As part of a planned maintenance program, infrared inspections:

  • Enables planned maintenance rather than emergency repairs
  • Conducted while equipment is energized and operating, avoiding disruption of operations
  • Eliminates potentially catastrophic losses due to equipment failures from electrical fires or other serious results when problems are not found with traditional maintenance methods
  • Extends equipment life cycle through early diagnosis and subsequent repair
  • Promotes safety in the workplace since personnel are not exposed to faulty equipment
  • Reduces equipment failures, protecting your capital equipment investment
  • Infrared Testing is a vital component of a complete service program


Components routinely tested by infrared inspection include:

  • Transformers
  • Capacitor Banks
  • Switches
  • Fuses
  • Circuit Breakers
  • Busbars
  • Cable Splicing
  • Motors

Equipment that should be inspected:

  • UPS
  • Batteries
  • Cooling
  • Generation
  • Switchgear
  • Power Conditioning
  • DC Power

Single-Line Development

The single-line diagram is the blueprint for electrical system analysis. It is the first step in preparing a critical response plan, allowing you to become thoroughly familiar with the electrical distribution system layout and design in your facility.

Whether you have a new or existing facility, the single-line diagram is the vital roadmap for all future testing, service and maintenance activities. As such, the single-line diagram is like a balance sheet for your facility and provides a snapshot of your facility at a moment in time. It needs to change as your facility changes to ensure that your systems are adequately protected.

An effective single-line diagram will clearly show how the main components of the electrical system are connected, including redundant equipment and available spares. It shows a correct power distribution path from the incoming power source to each downstream load – including the ratings and sizes of each piece of electrical equipment, their circuit conductors, and their protective devices.

In many process facilities, loads are continually added or removed in small increments. The net effect is not always seen until some part of the system becomes overloaded or exhibits other problems. Many times circuits are added without appropriate modifications of the standard settings on the associated upstream circuit breakers. Regardless of which protective devices you use, they must be coordinated with regard to their time/current curves and with each other. The single-line diagram provides the roadmap to enable proper design of equipment, redundancy, and protection.

NFPA-70E requirements mandate accurate, up-to-date single-line diagrams

To meet these requirements, Emerson can conduct a comprehensive site survey to develop single-line diagrams for your facility or to update existing diagrams, including:

  • Inventory of equipment
  • Verify existence of as-built drawings and that they are adequately available
  • Verify process is in place that ensures the as-built drawings are maintained in a current condition
  • Confirm loads connected to emergency / standby feeders
  • Verify potential single points of failure
  • Evaluate design redundancy of critical systems (N, N+1, N+2…) and whether all critical equipment can be maintained without a shutdown
  • Report that outlines the findings by site along with recommended actions
  • Update customer-provided single-line drawings down to the 480V Distribution
  • Switchboards
  • Provide a copy of single-line electrical diagram in AutoCAD format
  • Post as-built drawings at each facility

An up-to-date single-line diagram is vital for a variety of service activities including:

  • Short circuit calculations
  • Coordination studies
  • Load flow studies
  • Safety evaluation studies
  • All other engineering studies
  • Electrical safety procedures
  • Efficient maintenance

Features & Benefits

  • Helps identify fault locations and simplifies troubleshooting
  • Identify potential sources of electric energy during LOTO procedure
  • Ensure safety of personnel
  • Stay compliant with NFPA 70E requirements
  • Ensure safe, reliable operation of facility


To give you an accurate picture of your electrical system, single-line diagram information normally includes:

  • Incoming lines (voltage and size —capacity and rating)
  • Incoming main fuses, potheads, cutouts, switches and main and tie breakers
  • Power transformers (rating, winding connection and grounding means)
  • Feeder breakers and fused switches relays (function, use and type)
  • Current/potential transformers (size, type and ratio)
  • Control transformers
  • All main cable and wire runs with their associated isolating switches and potheads (size and length of run)
  • All substations, including integral relays and main panels and the exact nature of the load in each feeder and on each substation
  • Critical equipment voltage and size (UPS, battery, generator, power distribution, transfer switch, computer room air conditioning)