01 / SELECT BY HOW THE MACHINE RUNS
Three different procurement paths emerge from the manufacturer's own catalogue
YE6: compare actual operating-point losses
The manufacturer positions YE6 as a very-high-efficiency three-phase induction family for industrial drives in steel, chemical and power settings. Its public page describes an efficiency design target relative to YE5, but a company-wide average and a hypothetical annual saving are not a performance guarantee for an ordered motor. For a fixed-speed pump or fan, compare exact frame, poles, rated voltage, load profile and test-method efficiency at the actual duty point.
Confirm before ordering Send the existing motor plate, measured load, operating hours, driven-machine curve, starter and site voltage. Request the offered YE6 model's certified efficiency/loss table, rated and partial-load points, installation drawing and applicable local energy requirement.
View YE6 high-efficiency induction motor →
YVF3: define the motor and inverter as a package
The catalogue lists YVF3 as a variable-frequency speed-control motor, but the body of that official YVF3 page mistakenly describes a YE3 general-purpose motor. The page therefore does not establish a trustworthy YVF3 speed range, cooling mode or low-speed torque envelope. Do not transfer the YE3 text to a VFD quotation.
Confirm before ordering Provide VFD make, DC bus or line supply, switching setting, torque-speed duty, lowest continuous speed, cable length, feedback and insulation needs. Ask for a revision-specific YVF3 sheet, inverter-compatible bearing and cooling arrangement, thermal map and motor-drive test responsibility.
View YVF3 variable-frequency motor →
Medium high voltage: decide the starting and plant interface first
Separate official pages list ZR at 6 or 10 kV and a JN medium box-type line. A medium-voltage order is not simply a scaled-up low-voltage frame: switchgear capability, starting voltage dip, insulation coordination, site altitude, ventilation and protective relay settings become part of selection. The JN page claims a current energy-efficiency standard; obtain evidence for the precise rated unit rather than treating a series claim as its test report.
Confirm before ordering Include supply voltage and frequency, transformer and short-circuit data, starting method, driven inertia/torque curve, ambient and altitude, foundation and coupling drawings. Ask for the exact ZR/JN model data, start calculation, insulation and temperature-rise tests, and agreed site-acceptance scope.
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