Lakeland, Florida — Mobile Service
Reformed Power Solutions LLC provides controlled DC bus capacitor reconditioning for industrial variable frequency drives — with calibrated, data-logged proof-of-condition documentation for every job.
What We Do
We bring the equipment to you. No freight costs, no shipping damage risk, no waiting on a depot.
Controlled voltage ramp using a custom-built reform station. Voltage applied in four graduated stages with hold times at each step — the exact process specified by ABB, Rockwell, Siemens, Danfoss, Yaskawa, and all major manufacturers for drives in storage.
New drives purchased as replacements should be verified before installation. We confirm DC bus health and produce a baseline condition report before the drive ever sees a motor load.
Not sure where to start? We come to your facility at no charge, inspect your drive inventory, identify which units require reconditioning, and provide a written assessment and quote — no obligation required.
Includes a written condition summary and itemized service quote for every drive reviewed.
Schedule Free InspectionKeep stored spares in verified condition on a recurring schedule. Discounted rates for contracted customers — 10% off standard pricing, stackable with volume discounts.
Get a Quote
Complete the form below with your facility and contact information, then describe each drive you need serviced. We will respond with pricing and availability within one business day.
The Chemistry
Every VFD — regardless of manufacturer, model year, or brand — uses large electrolytic capacitors on its DC bus. These capacitors maintain their insulating properties only when periodically energized. When a drive sits in storage without power, the aluminum oxide dielectric layer inside each capacitor slowly breaks down.
Apply full voltage to a degraded capacitor and current rushes through microscopic cracks in the insulation instead of being blocked by it. The result: heat generation faster than the capacitor can dissipate — leading to venting, rupture, or catastrophic failure of the drive board.
This is not a defect in the drive. It is a fundamental property of electrolytic capacitor chemistry that every major manufacturer acknowledges with published storage and reforming procedures. Reconditioning rebuilds that oxide layer before the drive sees a load.
Schedule a service callEvery major VFD manufacturer — ABB, Rockwell Automation, Siemens, Danfoss, Yaskawa, Schneider, and KEB — publishes storage and reforming guidelines for their drives. The procedures are consistent across all brands: controlled voltage application in graduated steps, with hold times at each level to allow the dielectric to recover.
Reformed Power Solutions follows these manufacturer-specified procedures on every job, with dual data loggers running throughout to document that the correct voltage profile was applied from start to finish.
Request a QuoteDocumentation
Every job produces a calibrated, NIST-traceable data report generated by two simultaneously operating data loggers that record voltage, current, and temperature throughout the entire procedure. This is not a handwritten service tag — it is an instrument record.
Time-stamped voltage trace showing all four reform stages, hold times, and final voltage. Proves the correct voltage profile was applied throughout the job.
Confirms correct transformer secondary voltage was supplied throughout the reform cycle from start to finish.
The stabilized DC bus reading at end of full-voltage hold. A stable, correct DC bus value is a primary indicator of successful reformation.
Current draw (milliamps) throughout the job — showing the characteristic declining curve as each capacitor's dielectric reforms. Proves the capacitors responded correctly.
Confirms no current was flowing from the DC bus to chassis ground throughout the job, verifying the drive's internal insulation is intact.
Documents station temperature throughout the reform cycle for quality assurance and to capture any thermal anomalies.
Common Questions
Everything you need to know about VFD capacitor reforming, our service process, and what to expect on the day of service.
Electrolytic capacitors on a VFD's DC bus maintain their insulating oxide layer only when periodically energized. When a drive sits in storage without power, that aluminum oxide dielectric layer slowly breaks down through a chemical process called deformation. The longer the storage period, the more significant the degradation. Applying full line voltage to a deformed capacitor causes high leakage current, heat, and risks venting or rupture — and potential catastrophic failure of the drive board.
Most drives in the 5–75 HP range take 2–4 hours on-site from setup to final documentation. Drives stored for several years may require longer hold times at each voltage stage. We provide a time estimate when quoting based on drive size and storage history. Multiple drives at the same facility are serviced back-to-back in a single visit to minimize scheduling overhead.
Yes — if it has been sitting in a box for more than 1–2 years. A drive is "new" in the sense that it was never installed, but its capacitors begin degrading from the moment they leave the factory without power. Most major manufacturers — including ABB, Rockwell, Siemens, and Yaskawa — publish reforming procedures specifically for new drives in extended storage. Our Pre-Installation Commissioning service covers exactly this scenario and includes a baseline proof-of-condition report before the drive ever sees a motor load.
Skipping the reforming process risks immediate capacitor failure at energization. In best-case scenarios, the drive trips on overcurrent and requires capacitor replacement. In worst-case scenarios, capacitors vent or rupture, damaging the drive board beyond economical repair — often far exceeding what reforming would have cost. If the drive was a critical spare for a production line, an unplanned failure can mean hours or days of lost production.
An instrument-generated data record — not a handwritten service tag — produced by two simultaneously running calibrated data loggers throughout the entire reforming procedure. It documents six measured parameters: AC Variac output voltage, transformer secondary voltage, DC bus voltage, reform current profile, chassis leakage current, and station enclosure temperature. The report proves the correct voltage profile was applied start-to-finish and that the capacitors responded correctly. All data is retained for 7 years and provided to you at job completion.
Our current station handles drives from 5 HP through 75 HP at 480V class. Drives in the 75–100 HP range are accepted on a conditional basis for units stored 2 years or less — contact us to discuss. Drives above 100 HP are outside our current station capability; contact us and we can discuss your specific situation and timeline.
We come to you. Our reform station is fully mobile and operates at your facility using a standard electrical outlet. There is no freight, no shipping damage risk, and no depot wait time. You keep your drives on-site throughout the entire process and receive completed documentation the same day.
We are based in Lakeland and primarily serve Polk, Hillsborough, Pasco, Pinellas, Osceola, and Orange counties — the greater Central Florida industrial corridor. For facilities outside this area with multiple drives to service, travel may still be worthwhile. Contact us with your location and we will confirm whether we can accommodate your site.
Pricing is based on drive HP rating, storage history, and number of units serviced in a single visit. Volume discounts apply for 3 or more drives at the same facility on the same day. Annual maintenance contract customers receive 10% off standard rates. Use the quote request form above or call 863-286-0813 — we typically respond within one business day.
Yes. The capacitor reforming process is universal — all 480V-class VFDs use electrolytic capacitors that respond to the same controlled voltage ramp procedure regardless of manufacturer. We service drives from ABB, Rockwell Automation (Allen-Bradley), Siemens, Danfoss, Yaskawa, Schneider Electric, KEB, Lenze, Emerson, and all other major manufacturers. Contact us with your manufacturer and model number and we will confirm your drive qualifies.
Get in Touch
We serve industrial facilities, manufacturing plants, and maintenance teams throughout Central Florida. No freight, no shipping — we come to you.
We typically respond within one business day. For urgent scheduling, call directly.