Drive Isolation Transformer RFQ

Request quotes for drive isolation transformers, VFD input isolation transformers, 6-pulse, 12-pulse, and 18-pulse phase-shifting transformers, soft starter isolation transformers, and DC drive input transformers for industrial motor drive applications.

Complete only the fields you know. If you have a drive specification, one-line diagram, harmonic study, nameplate, drawing, site photo, or replacement requirement, upload it near the end of the form.
  • Drive Isolation
  • 6-Pulse
  • 12-Pulse
  • 18-Pulse
  • VFD Input
  • Harmonic Mitigation
  • Phase-Shifting

Drive Isolation Transformer RFQ Intake

This form is built for industrial facilities, plants, engineering firms, electrical contractors, OEMs, and system integrators sourcing isolation transformers for variable frequency drives, soft starters, DC drives, servo drives, and multi-drive systems.

  • Drive type, pulse number, phase-shift configuration, and winding requirements
  • Impedance, K-factor, harmonic derating, electrostatic shielding, and EMI/RFI needs
  • Enclosure, mounting, site conditions, temperature rise, and space constraints
  • Standards, factory tests, drive manufacturer approval, and commercial scope

For VFD and Drive Systems

Capture pulse number, kVA rating, impedance, winding configuration, electrostatic shielding, and harmonic derating requirements for your specific drive type and manufacturer.

For Harmonic Mitigation

Support 12-pulse and 18-pulse phase-shifting configurations that cancel 5th and 7th or 5th through 17th harmonic orders, reducing THD at the point of common coupling.

For Engineering and Procurement

Collect drive manufacturer approval requirements, IEEE 519 compliance documentation, factory test reports, certified drawings, and commissioning support needs.

Electrical Transformers

1. Drive Isolation Transformer Type

Select the transformer type that matches your drive system configuration. Drive isolation transformers are specified by pulse number, which determines the winding configuration and harmonic cancellation performance.

Transformer Type

2. Drive System and Application

Identify the drive type, manufacturer, load application, and project context. Drive system details help suppliers match the transformer to the drive's input requirements.

Drive / Load Application

3. Electrical Ratings and Drive System Requirements

Provide transformer and drive system electrical data. Drive isolation transformers must be sized to the connected drive, not just the motor nameplate — drives draw non-sinusoidal current and may require derating.

Required Rating Information

4. Harmonic, EMI, and Shielding Requirements

Drive systems generate harmonic currents that heat transformer windings and cause EMI. These fields capture the harmonic environment and shielding requirements that determine transformer design specifications.

Harmonic and EMI Requirements

5. Construction, Enclosure, and Site Conditions

Select enclosure type, mounting configuration, environmental conditions, and site-specific installation requirements.

Construction and Site Requirements

6. Standards, Testing, Documentation, and Approvals

Select required standards, certifications, test reports, drawings, and approval requirements.

Standards / Testing / Documentation

7. Implementation, Support, Warranty, and Commercial Scope

Identify delivery, installation, startup, training, support, and commercial requirements.

Commercial Scope

8. Contact, Delivery, Uploads, and Notes

Quote Type
Support Required

Upload specifications, one-line diagrams, load lists, drive data sheets, nameplates, photos, drawings, study files, RFP documents, or site standards.

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