MIDWEST Switchgear Group
Circuit Breakers | Bus Plugs | Transformers | Switchgear | Arc Flash Clothing
Reconditioned | Used | New
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Available Monday-Friday
7AM - 4:30PM Central Time

Transformer Maintenance and Testing

Transformers are inspected, insulating members are cleaned, and the transformer is tested per standard tests.
  • Oil Filled Power Transformers
  • Dry Type Power Transformers
  • Pad Mount Power Transformers
  • Non-Flammable Liquid Transformers
  • Oil Leak Repairs
  • Current (Transformers)
  • Transformer Oil Analysis
  • Transformer Oil Filtering
  • Transformer Oil Replacement
  • Transformer Ultrasonic Scanning
  • Cast Coil Power Transformers
  • Nitrogen Insulated Power Transformers
  • Bushing Repairs And Replacement
  • Gasket Replacement & Repairs
  • Transformer Tank Painting
  • Potential Transformers
  • Transformer Gas Analysis
  • Transformer Acceptance Testing
  • Transformer Maintenance Testing
  • Power Monitor Retrofits

Infrared and Ultrasonic Scanning

Infrared scans determine the significance of hot spots found in equipment. Equipment is scanned while normal load is applied.
  • Electrical Switchgear & Equipment
  • Electrical Distribution Systems
  • Electrical Transmission Systems
  • Electric Induction Furnaces
  • Roof and Building Envelope Inspections
  • Hospital Maintenance Programs
  • Data Processing Maintenance Programs
  • Electric Arc Furnaces
  • Process (Monitoring)

Circuit Breaker Maintenance and Testing

Circuit Breakers are inspected for material integrity. Insulating members are cleaned. Contact resistance, overcurrent protection, shunt trip, and megger tests are performed per specifications.
  • Power Circuit Breakers
  • Molded Case Breakers
  • Insulated Case Breakers
  • Medium Voltage Breakers
  • High Voltage Breakers
  • Vacuum (Breakers)
  • Oil Circuit Breakers
  • SF6 Breakers
  • SF6 Gas Analysis

Circuit Breaker Reconditioning

Circuit Breakers are reconditioned. Components showing signs of wear are replaced with new.
  • Low Voltage
  • Medium Voltage
  • Oil Circuit Breaker

Circuit Breaker Retrofitting

Circuit Breakers are retrofitted with new overcurrent devices ensuring essential trip specifications.
  • Low Voltage - Solid State
  • Low Voltage with Power Monitors
  • Medium Voltage Vacuum
  • Medium Voltage SF6

Equipment Maintainted and Tested

Equipment is inspected for material integrity. Insulating members are cleaned and each device undergoes appropriate testing.
  • Switchgear Assemblies
  • Unit Substations
  • Power Centers & Motors Control Centers
  • Medium Voltage Starters
  • Generator Switchgear
  • Lightning Arresters
  • Control Devices
  • Electronic Overcurrent Devices
  • Ground Resistance Testing
  • Medium Voltage Contactors
  • Ground Fault Equipment
  • Transfer Switches
  • Emergency Power Equipment Generators
  • Cable Hypotential Testing
  • Protective Relays
  • Instruments and Meters
  • Bolted Pressure Switches

Engineering Services

MIDWEST brings a full range of engineering capabilities to ensure the utmost efficiency, reliability, and safety ratios possible in power distribution solutions.
  • Power Quality Analysis
  • Harmonic Analysis
  • Fault Current Analysis
  • Preventive Maintenance Programs
  • Power System Evaluations
  • Coordination Analysis
  • Load Studies
  • Power Factor Analysis
  • Power Monitor Retrofits
  • PCB Reviews & Recommendations

Training Services

MIDWEST provides safety training at either our site or the customers site as preferred. One of our most asked for training classes is on grounding out procedures.
  • Electrical Safety
  • Equipment Maintenance
  • Customer-Specific Training

(Per NFPA 70E – OSHA)

Arc Flash – The new frontier of Electrical Safety. Here equipment is analyzed for Arc Flash potential relative to human safety.
  • Engineering & Field Services
  • PC-PPE Guide & Risk Levels
  • Systems Arc Flash Hazard Analysis
  • Labeling Policy & Program
  • Safety Equipment Testing
  • Hands-On Safety Training (OSHA 29 910.331-335)
  • PC-PPE Guide For Electricians
  • Incident Energy Levels
  • Hazard Risk Levels
© 2024 MIDWEST Electrical Testing & Maintenance Co., Inc.
N93 W16170 Megal Drive · Menomonee Falls, WI 53051
Toll-Free: 800.803.9256 · Local: 414.461.8200 · Fax: 414.461.8485
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Available Monday - Friday
7 AM - 4:30 PM Central Time