Efficiency Test Method IEC 60034-2-1

Efficiency Test Method IEC 60034-2-1

Efficiency Test Method IEC 60034-2-1

Efficiency test method  IEC 60034-2-1 / IS 15999 (Part 2/Sec 1)

Applicable to:

Rotating Electric Machine: IEC 60034 is introducing to establish methods of determining efficiencies from tests and also to specify methods of obtaining specific losses.

  1. C.  Machine
  2. C. Synchronous
  3. Induction Machine (All Size in scope IEC 60034)
  4. Rotary Converters
  5. AC Commutator Motors
  6. Single Phase Induction Motor

Why high efficient Motors?

  • Save energy
  • Reduce operation cost
  • Reduce harmful greenhouse gases

Order of tests   IEC 60034-2-1

Step No. Description
1 First stator winding resistance measurement at ambient temperature
2 Remove accessible drive end sealing elements (without dismantling the motor)
3 Clause 6.4.4.1  Rated load temperature test
4 Second stator winding resistance measurement (immediately after 6.4.4.1)
5 Clause 6.4.4.2 and 6.4.5.3  Load curve test with torque measurement (immediately after 6.4.4.1)
6 Third stator winding resistance measurement (immediately after 6.4.4.2 and 6.4.5.3)
7 Clause 6.4.2  No load test (immediately after third stator winding resistance measurement)
8 Fourth stator winding resistance measurement (immediately after 6.4.2)

Determination of loss components must be performed in the following order

9 Clause 8.2.2.3 Constant losses (8.2.2.3.1, 8.2.2.3.2 and 8.2.2.3.3)

Constant losses to Clause 8.2.2.3.1

(Friction and windage losses: 8.2.2.3.2)

(Iron losses: 8.2.2.3.3)

10 Clause 8.2.2.4 Load losses (8.2.2.4.1.2 and 8.2.2.4.1.3)

Load losses to Clause 8.2.2.4.1:

(Stator and rotor winding losses

s, including temp. correction)

(8.2.2.4.1.2 and 8.2.2.4.1.3)

11 Clause 8.2.2.5 Additional load losses (8.2.2.5.1 From a load test with torque measurement)

Additional load losses to Clause 8.2.2.5.1

(Residual losses)

12 Clause 8.2.2.2  Calculate total losses
13 Clause 8.2.2.1 Calculate the efficiency