Armature Winder (LV/MV/Senior HV) – Roodepoort

• Wind the machine so it matches the approved data.
• The winder records what came out, builds what must go back in, presents the job at every hold point, and does not impregnate or close a winding that is wrong.
• This is a trade, used on whatever motor work is taken in — power station, mine, rail, water or industrial.
• Grades LV Winder · MV Winder · Senior / HV Winder

Reports to Production Manager

• Technical hold points Quality Manager and Engineering Manager, as marked on the QCP
• Scope AC and DC rotating machines across all sectors and clients.
• Employment Permanent, full time.
• Overtime and breakdown cover.

Minimum requirements

• Trade tested Electrician or Armature Winder, or a documented equivalent recognised in South Africa.
• Grade experience as in the table above. MV and HV grades will be tested on form-wound data and a sample winding sheet at interview.
• Able to read a connection diagram and work to a QCP without being walked through every step.
• Medically fit for workshop work, crane-supported cores and oven / VPI heat. Prepared to work overtime on breakdowns.
• Both AC form-wound and DC armature / commutator in the same person Senior / HV.
• Utility, mining or heavy-industrial contract motors. Ability to train a junior without lowering the standard.

Grades

• Grade Typical machines Bar for appointment
• LV Winder Low-voltage AC and light DC; mush / random wound Trade test plus 3 years productive rewind
• MV Winder Medium-voltage form-wound; industrial and utility motors 5 years including MV form-wound and VPI
• Senior / HV Winder HV form-wound, large AC, complex DC armatures 7+ years; leads data, coaches others, stands as client witness.

Accountabilities — all grades

• Record winding data before strip: turns, wire, pitch, grouping, connection, insulation, leads, RTDs / thermistors / surge rings.
• Photograph failed windings. Do not destroy evidence the client still needs.
• Strip only by the approved method. No cutting torch. Heat only within the written oven limit.
• Present the core for flux / EL-CID. Do not rewind a core that has not been cleared.
• Manufacture coils to the original design unless Engineering has approved a change in writing.
• Joints brazed or welded. Insulation class and system as specified, Class H as the normal workshop minimum unless the job says otherwise.
• Present stator / rotor / armature for Quality and client witness before VPI. That hold is not optional.
• Prepare for VPI, terminate and mark leads, and support IR, PI, surge, HV and no-load tests on the winder's work.
• DC work to grade: armature, interpoles, field coils, commutator undercut / mica / bar-to-bar. Flag a commutator that should be replaced.
• Sign the stage you did, when you did it. Expired resin or the wrong wire is not used to keep a job moving.

Authority

• Refuse to wind a core that has not passed flux / EL-CID, or a job with no approved data / QCP.
• Stop and call Production, Quality or Engineering if the material or the hold point does not match the motor.