BS 173-1:1992

Committees responsible
National foreword
Section 1. General
1.1 Scope and object
1.2 Normative references
1.3 Service conditions
Section 2. Definitions
2.1 General
2.2 Rating of a machine
2.3 Rated voltage
2.4 Rated speed of a machine
2.5 Maximum (or minimum) voltage of a machine
2.6 Maximum current
2.7 Maximum working speed
2.8 Output and input power of electrical machines and
      heat engines
2.9 Main generator characteristics
2.10 Effective field ratio of a series motor
2.11 Effective resistance of a series motor
2.12 Ripple factor
2.13 Pulsating frequency
2.14 Pulse control
Section 3. Characteristics
3.1 General
3.2 Reference temperature
3.3 Efficiency characteristics
3.4 Commutator type traction motor characteristics
3.5 Polyphase a.c. traction motor characteristics
3.6 Main generator characteristics
3.7 Auxiliary motor characteristics
3.8 Auxiliary generator characteristics
3.9 Auxiliary motor-generator set and rotary convertor
      characteristics
Section 4. Marking
4.1 Nameplate
4.2 Terminal and lead markings
Section 5. Test categories
5.1 Test categories
5.2 Summary of tests
Section 6. Type tests
6.1 Temperature-rise tests
6.2 Characteristic tests and tolerances
6.3 Commutation tests
6.4 Transient tests
6.5 Short-circuit tests on main and auxiliary
      alternators
6.6 Starting tests
6.7 Overspeed tests
Section 7. Routine tests
7.1 Short-time soundness test
7.2 Characteristic tests and tolerances
7.3 Commutation routine tests
7.4 Overspeed tests
7.5 Dielectric tests
7.6 Vibration tests
7.7 Commutator radial run-out measurement
Annexes
A Methods of determining losses and efficiency
B Noise
C Supply voltages of traction systems
D Agreement between user and manufacturer
Tables
1 Summary of tests
2 Limits of temperature
3 Temperature rise for short-time overload rating
4 Tolerances on the speed of commutator type
      traction motors
5 Dielectric test voltages
6 Limits of commutator radial run-out
B.1 Limiting mean sound power level for airborne noise
      emitted by rotating electrical machines for rail
      and road vehicles other than traction motors
Figures
1 Typical a.c. motor characteristics
2 Commutator type traction motor test points
3 Main generator test points
A.1 Circuit for determining loss and efficiency by the
      regenerative method with the machines connected in
      parallel
A.2 Circuit for determining loss and efficiency by the
      regenerative method with the machines connected in
      series
A.3 Circuit for determining loss and efficiency by the
      regenerative method with the machines connected in
      series and with mechanical drive
A.4 Circuit for determining loss and efficiency of
      single-phase a.c. commutator motors by the
      regenerative method with the machines connected
      in series
A.5 Circuit for determining loss and efficiency of
      pulsating current motors by the regenerative
      method with the machines connected in series
A.6 Circuit for determining loss and efficiency of
      pulsating current motors by the regenerative
      method with the machines connected in parallel
A.7 Circuit for the measurement of the a.c. losses of
      pulsating current motors
A.8 Correction factor for additional load loss of
      uncompensated d.c. machines
A.9 Correction factor for pulsating current I2R loss
A.10 Conventional values of traction motor trans-
      mission losses
B.1 Limiting mean sound power level for airborne noise
      emitted by traction motors

Specifies test to enable the performance of a machine to be confirmed and provides a basis for its suitability for a specified duty and for comparison with other machines.