Inspection and Witness Testing Services for Generators and Accessories Worldwide

Qtech Control provides experienced electrical, mechanical, NDT and coating inspectors for third party inspection, quality control and factory acceptance testing (FAT) of generators (AC, Gas, Diesel), alternators and generator sets at vendor sites worldwide.

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We protect our clients' interests at the generator manufacturing site and at their subcontractors, from stator and rotor manufacture through to the final FAT, independently verifying that every machine is built on time, to the approved drawings, datasheets and Inspection and Test Plan (ITP).

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Our Generator Inspection Services

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• Supplier auditing and capability assessment.

• Client representation at pre-inspection meetings (PIM).

• Expediting - production status, delivery dates and delays.

• Document review - ITP, test procedures, EN 10204 3.1 material certificates, insulation records and calibration certificates.

• Stage inspection of stator core and winding, rotor shaft and winding, wedges, retaining rings and brazed joints.

• Rotor balancing and overspeed test witness.

• Dimensional control and NDT (UT, MT, DPI).

• Generator set FAT to ISO 8528 - load runs to 110%, load steps, start tests, alarms and shutdowns, string testing.

• Protection, control and synchronising panel FAT.

• Coating inspection and DFT checks.

• Name plate, terminal marking and tagging checks.

• Final inspection, packing, preservation and loading supervision.

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Generator and Alternator Tests We Witness

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Routine and type tests to IEC 60034, IEEE 115 and the approved ITP, including:

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• Winding resistance, insulation resistance and polarisation index (IEEE 43).

• High voltage withstand test (IEC 60034-1).

• No-load saturation, sustained and sudden short-circuit tests.

• Voltage balance, phase sequence and waveform distortion.

• Excitation and AVR tests, including quadrature droop for parallel operation.

• Temperature rise (heat run), efficiency and losses (IEC 60034-2-1).

• Vibration, overspeed and noise (IEC 60034-14 and 60034-9).

• Tan delta and capacitance on HV stator windings.