Electrical Reliability

Electrical Reliability - RED.pngReliability of your electrical distribution system includes a proactive, preventative, and predictive maintenance program. Simply stated, we exist to help our clients answer the question, “Is my electrical distribution system in a solid, reliable condition?”  

Preventive Maintenance is a regularly scheduled inspection and maintenance program to service your electrical distribution system.  

Predictive Maintenance programs prevent and detect potential problems before they become an emergency resulting in a potential loss of production and revenue. 

Absolute’s highly trained NETA (International Electrical Testing Association) certified technicians utilizing specialized testing equipment adhere to all manufacture’s, NETA, and Absolute’s best maintenance practices.   

Absolute Testing specializes in developing a facility-specific proactive, preventative, and predictive maintenance program including a frequency matrix, to enhance performance, increase uptime and the electrical reliability of your critical infrastructure. 

 

Electrical Distribution Components  

Our Absolute Testing NETA Technicians perform NETA maintenance testing of high (HV), medium (MV) and low voltage (LV) electrical systems. 

These Systems Include: Transformers, Reclosures and their associated controllers, Switchgear, Electro mechanical, Solid-State and Microprocessor based Relay Protection Devices, Automatic Transfer Switches, Circuit Breakers and Trip Units, Power Cables, Capacitors, Safety Interlocks both electrical and mechanical, Grounding Systems, Switches, Surge Protective Devices (SPD), Motor Control Centers (MCC), Distribution and Lighting Panel Boards, Isolation Panels and Receptacles,  as well as other electrical components found in your electrical distribution system. 

Transformers   

Transformers perform a vital role in your electrical system. Due to the extended service life, environmental stress, and loads they take on it is important to regularly maintain and repair them. Absolute performs the industry best practices for testing and repairs of all types of transformers. 

Maintenance Tests Include: Power Factor (watts loss), Transformer Turns Ratio (TTR), Winding Resistance (WR), Polarization Index (PI), Sweep Frequency Analysis (SFA) and a complete Oil Analysis Including Dissolved Gas, Standard Screen, and PCB chain of custody reports.

Switchgear / Circuit Breakers 

Switchgear and its components often serve as the primary starting point for an electrical distribution system. The primary function is for the safe distribution of electrical power while providing protection of personnel and equipment. Absolute is familiar with all manufactures and testing methods that will assure the electrical switchgear will function as designed.

Maintenance Tests Include: Visual, Electrical and Mechanical inspections, Electrical Contact and Insulation Resistance, Primary and Secondary injection, Ground Fault, Programming, and coordination settings. 
 

Protective Relays 

Electromechanical, solid-state, and microprocessor-based protective relays are designed to detect faults or abnormal conditions within an electrical distribution system. Absolute Testing Technicians understand the significant role of Protective Relay applications within the designed protection scheme and are well versed in programming, testing, and maintaining all types of Protective Relays.  

Maintenance Tests Includes: Verification of set-point parameters and logic by means of secondary injection.

Automatic Transfer Switches (ATS) / Schemes 

An ATS is a critical component of the emergency power system for any facility that transfers the electrical load to an alternate acceptable power source, typically a generator. 

Absolute trained technicians repair, service, and test all manufactures equipment confirming that your Emergency Power System will function as designed and in compliance with local fire inspections.

Maintenance Tests Include: Visual, Electrical and Mechanical inspections, Electrical Contact and Insulation Resistance, Programing, and calibration of ATS controller including full functional testing. 

Cable Testing

Power cables carry the energy through your electrical distribution system and undergo significant mechanical strain during initial installation and electrical strain over time that can cause them to degrade or fail.  Proactive maintenance and testing can help you predict a failure and know when it is time to replace cables before a failure occurs. 

Maintenance Tests Include:  DC High Potential (HIPOT), Very Low Frequency (VLF), TAN Delta, Partial Discharge (PD), Shield Continuity, and Insulation Resistance.

Infrared Thermography / Ultrasound Surveys  

Infrared and Ultrasound surveys are the eyes and ears of maintaining electrical systems. These non-contact surveys of energized electrical components during normal operation provide a valuable predictive analysis.  IR scans detect higher temperatures created from poor connections or weakened components and is often a precursor to failure. Ultrasound surveys detect acoustic signatures such as arching, tracking, partial discharges, and mechanical weaknesses in your system. 

Maintenance Tests Include: Infrared Thermography in High Resolution, and Ultrasound (Partial Discharge) Survey.

Power Quality Monitoring (PQM)/Predictive Motor Analysis (PMA)

PQM can help identify unseen issues before they translate into problems or failures on your electrical system. PQM record and chart power conditions for up to 52 channels continuously per IEEE and EN50160 industry power quality standards. 

PMA is a way to identify motor issues prior to failure through a predicative maintenance test that looks at the deenergized and energized operation of the motor. This innovative approach and technology can increase efficiency, reduce downtime and labor replacing unplanned motor failures. 

Power Quality Analysis: Full PQM, Full PQM, Basic PQ for Demand w/ time stamped Time Stamped Intervals.

Predictive Motor Analysis: Power Quality, Insulation, Winding Resistance, Stator, Rotor, Air Gap.

Grounding 

The electrical grounding system at your facility is critical for protecting both the occupants and equipment, making it one of the most significant aspects of electrical safety. Absolute Technicians have the knowledge of earth ground safety principles and can diagnose intermittent electrical grounding problems. Thorough ground testing should be part of your maintenance plan and more info is supported by NFPA, OSHA, IEEE, ANSI/ISA and others.

Maintenance Tests Include: Fall of Potential (FOP), Soil resistivity, Selective, Point to Point, and Stakeless methods