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Business Details
50 Years
experience
Trusted Electrical Contractor in Colman, SD
Founded in 1976, Jerry's Electric has established itself as a premier family-owned electrical solutions provider serving utility and industrial markets across the United States and Canada. Our expertise spans transformer remanufacturing, voltage regulator systems, switchgear solutions, and comprehensive repair services for oil-filled electrical equipment. We specialize in PCB analysis for oil and soil testing, ensuring regulatory compliance while offering sustainable reclamation services for obsolete transformers. Our 3-year warranty on remanufactured transformers reflects our commitment to quality, using new oil, copper windings, and advanced insulation materials.

With a dedicated team of electrical engineering professionals, we prioritize speed, affordability, and environmental responsibility in every project. Our Colman, SD facility supports nationwide shipping while maintaining personalized customer service through direct communication channels. We combine four decades of technical expertise with core values that emphasize employee welfare and customer satisfaction, delivering reliable electrical infrastructure solutions that meet exact operational requirements.
Services
Transformer Remanufacturing Voltage Regulators Switchgear Solutions Transformer Repair PCB Analysis Reclamation Services
Details
  • Year established: 1976
Highlights and features
  • 40+ years of specialized electrical equipment expertise
  • Family-owned business with direct customer communication
  • Comprehensive transformer lifecycle solutions under one roof
  • 3-year warranty on all remanufactured transformers
  • EPA-compliant PCB analysis and reclamation services
Services
Transformer Remanufacturing
We remanufacture transformers using new oil, copper windings, and Kraft diamond back paper insulation. Our process includes complete disassembly, component replacement, and 3-year performance warranty. Each unit undergoes rigorous testing to meet or exceed original equipment manufacturer specifications.
Voltage Regulators
Our voltage regulators maintain consistent electrical output through precision engineering. Designed for industrial applications, these systems protect equipment from voltage fluctuations while ensuring operational efficiency. We offer both standard and custom configurations for various power requirements.
PCB Analysis
We perform EPA-certified PCB analysis using gas chromatography for accurate contamination detection. Our service includes sample collection, laboratory testing, and detailed reporting with compliance recommendations. This ensures proper handling of transformers manufactured before 1980 regulations.
Reclamation Services
Our reclamation process handles complete transformer decommissioning following environmental regulations. We recover usable oil and components while properly disposing of hazardous materials. Detailed documentation supports clients' compliance with federal and state environmental requirements.
Transformer Repair
We offer comprehensive transformer repair including diagnostics, component replacement, and performance testing. Our technicians use factory-grade materials and follow strict quality control procedures. Services include insulation resistance testing and oil dielectric strength analysis to ensure operational reliability.
Questions
What transformer sizes do you remanufacture?
We handle single-phase polemounts from 5kVA to 500kVA, three-phase substation units up to 10MVA, and padmount transformers ranging from 10kVA to 10MVA.
Do you provide warranty for remanufactured transformers?
Yes, all our remanufactured transformers come with a 3-year warranty covering performance and component quality when installed according to specifications.
Can you test for PCB contamination in transformers?
We offer complete PCB analysis using EPA-approved methods, including oil sampling, gas chromatography testing, and detailed contamination reports with remediation recommendations.
What areas do you serve?
We serve utility and industrial clients throughout the United States and Canada from our Colman, South Dakota facility with nationwide shipping capabilities.
Do you handle transformer decommissioning?
Yes, our reclamation services include complete transformer decommissioning following environmental regulations, with proper oil recovery and component recycling documentation.
How do you ensure repair quality?
Our repair process includes comprehensive diagnostics, factory-grade component replacement, and post-repair testing to verify electrical performance and safety standards compliance.