Telios has a long history of design and consulting on data centers, call centers, industrial buildings, and hospitals that must rely on a steady, reliable and well maintained electrical power system.  Small electrical failures or faults can have devastating consequences, which may include expensive downtime and damage to critical equipment.

A well maintained system will increase the facility’s reliability and protect equipment, personnel, and business operations.  A power systems analysis along with annual preventative maintenance will prepare a facility to accommodate all hazards and risks that may arise during the course of operation.

Electrical Power Studies:

  • Short Circuit Study (Electrical Failure/Available Fault Current Analysis)
  • Protective Device Coordination Study
  • Load Flow Study
  • Arc Flash Study

Short Circuit Study (Electrical Failure/Available Fault Current Analysis)

The National Electrical Code® (NEC) requires that all short circuit interrupting devices have ratings sufficient for the current which must be interrupted. A severe fault (short circuit) can have catastrophic consequences on the electrical system. Electrical systems often go through changes without consideration of short circuit level and equipment rating changes. New buildings and installations are not immune, and fault levels can vary between systems and locations. ALL systems will fault at SOME point.

An Electrical Failure Analysis, also commonly referred to as a Short Circuit Study, will

  • Provide the information required to determine if the interrupting capacities of the power system components are adequate enough to protect the power system.
  • Aid in future expansion plans by providing accurate fault current calculations at each location in the system.
  • Identify underrated equipment at existing facilities, before extensive damage can occur.
  • Increase facility reliability, equipment protection, and personnel safety

Protective Device Coordination Study

The NEC requires that a protective device coordination study is completed on essential electrical systems and legally required standby systems.

A coordination study will insure that circuit breakers, fuses, and medium voltage relays are properly calibrated to insure that local faults in the electrical distribution system are isolated to the source of the failure.

  • Provide protective device coordination by setting the devices to trip in a planned sequence.
  • Increase facility reliability by limiting the effects of a disturbance to smaller areas within the distribution system.

Load Flow Study

Used to determine how your electrical system will operate in normal and emergency conditions, and check for the application of power factor correction capacitors. A Load Flow Study will:

  • Reduce electrical bill by determining size and location of power factor correction capacitors.
  • Aid in future planning by demonstrating system performance during normal and emergency conditions.
  • Determine proper transformer tap settings.
  • Identify under-utilized equipment, to allow for future growth.
  • Motor starting analysis to reduce flicker and voltage drop problems.

Arc Flash Study

An arc flash hazard exists whenever personnel are servicing electrical equipment in the energized state. An Arc Flash Study is performed in order to determine the available arc fault currents and arc flash hazards. OSHA regulations clearly state that a study MUST be performed to determine these values. By performing the proper arc flash studies by calculation, you're insuring that your workers are using the proper personal protection equipment (PPE) and safety equipment to conduct proper maintenance.

  • Increase equipment protection and personnel safety.
  • Reduce ongoing maintenance costs by utilizing PPE equipment acceptable for the application.