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What We Do Best

Midwest Electrical Experts, LLC is focused on electrical engineering excellence which allows us to provide high quality service, in a timely manner, at a competitive price. We provide outstanding electrical reliability and safety services to our clients by working hard, thinking critically and using the latest technology. Take a look below to see the variety of services we offer, and what we can do for you.

Arc-Flash Studies

An arc-flash hazard analysis is a safety related study that investigates a worker’s potential exposure to arc-flash energy. Arc-flash energy is the result of an arc developing in air that causes a sudden pressure increase and extreme localized heating which is destructive to nearby equipment and hazardous to people. An arc-flash hazard analysis should be performed as a component of an overall electrical safety program.
 

OSHA considers electrical arc-flash to be a recognizable hazard and it is the facility’s responsibility to communicate this hazard to employees and contractors.

 

The results of the arc-flash hazard analysis will provide the information an electrical worker needs to select appropriate PPE to defend against the thermal components of an arc-flash event.

 

NFPA 70E provides the formal requirement for the arc-flash hazard analysis while OSHA refers to the NFPA 70E as the national consensus standard for compliance. The IEEE 1584 standard provides the mathematical equations to perform arc-flash hazard analysis calculations.

Let Midwest Electrical Experts, LLC help you get your electrical safety program off the ground! We provide customized arc-flash studies for customers in many different industries including education, medical, agricultural, manufacturing, oil & gas, utility, aviation and others.

 

We work directly with your in-house electricians, preferred contractor or with our own technicians to gather detailed information about your facility to create a system model that is used for the study.

When are arc-flash studies required?

All industrial and commercial facilities should have an arc-flash study conducted. The NFPA 70E requires arc-flash studies to be revised every 5 years or after any significant electrical upgrade.

Need an Arc Flash Study?

Protective Relay Settings and Solutions

Take advantage of Midwest Electrical Experts, LLC expertise in programming SEL relays. We have the knowledge to specify, design, install, test and commission your relays. We work with customers on new, existing and retrofit applications.

Protection System Experience 

Arc-Flash Reduction

Auto-Transfer

Motor

Bus

Transmission

Distribution

Transformer

Metering

Power Quality

Maximize Potential

Protective relays have many capabilities beyond protection that are often not utilized.

We partner with you to help you understand what is possible:

  • Install light sensors in breaker compartments that see electrical arcs and clear faults quicker.

  • Program front push buttons to delay trip/close so the operator has time to leave the area before the breaker changes state.

  • Enable alternate settings prior to downstream work taking place to lower incident energy levels.

  • Set the unused time-overcurrent elements at a sensitive level to trigger an event report for downstream faults.

  • Set an under-voltage element to capture utility caused momentary sags.

  • Capture a motor start report to look for early transition, excessive start times or incorrect sequence of operation.

  • Use standard communication features to communicate status, analogs, alarms and events back into your SCADA system.

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Post-Fault Investigations

Forensic Engineering

Get answers about accidents, losses and damages that are important to your facility’s electrical system.

 

Answers you may need include root-cause, damage assessment, technical audit, repair costs, replacement alternatives, 3rd party perspective, verification of proper operation, etc.

Misoperations

Proper protection system operation relies on a host of critical components such as potential and current transformers, relays, and breakers along with skilled crafts to coordinate, test, and maintain this system.

The failure of these devices to operate as intended for protection purposes is a misoperation. Misoperations should be investigated and corrective action should be taken to prevent recurrence.

How We Can Help

We use our know-how with onsite equipment inspections, engineering modeling, national consensus standards, laboratory testing and a variety of hands-on test equipment to give you answers.

 

We have experience evaluating a large variety of events ranging from transformer and switchgear failures, transmission line operations, faulty relay settings, improper control wiring, etc.

Additional Services

Protection Scheme Designs

We can design new protection schemes, or modify existing ones, to support new equipment, or upgrades, at your facility.

MV Motor Starter Control Upgrades 

Intermittent problems with MV motor starters can be frustrating to say the least. Upgrade to a SEL 710 relay to improve troubleshooting capabilities, reduce the possibility of failure due to early transfer and improve electrical protection. 

Low Voltage Breaker Testing

NEC 230.95 and 240.67 requires primary current injection testing and documentation to verify proper operation of equipment.

Factory Acceptance Witnessing

We provide factory acceptance witnessing, which ensures your electrical equipment meets the specified design and performance requirements before it is delivered to the job site.

Short-Circuit Studies

Exceeding equipment short-circuit ratings could result in equipment damage, unexpected operation of protective devices or protective device fail-to-operate conditions.

Coordination Studies

Protective device coordination provides a reasonable compromise between the often-conflicting goals of service continuity and equipment protection.

Utility Accountability

Hold your utility accountable by installing a SEL 735 to continuously record power usage, power factor and demand to confirm your bill’s accuracy. This revenue quality meter is dual purpose as it also can be used to capture power quality related events.

Power Quality Studies

Allow us to install monitoring equipment to capture momentary sags/swell, record harmonic activity and possibly lower your utility bill by improving your power factor. Install permanent monitoring equipment to analyze your electrical system when events occur.

Wildlife & Asset Protection Consulting

Industry data suggests 13 million people annually lose power due to wildlife related outages, most of these outages could be avoided with electrical cover-up which prevents wildlife from making contact with energized equipment.

Protective Relay Commissioning & Testing

Protective devices rarely operate, however, when they are needed, it is critical that they work as designed. Commissioning activities and routine maintenance verify protective equipment is installed and working properly.

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