• BS 4999-33:1977

BS 4999-33:1977

General requirements for rotating electrical machines-Methods for determining losses and efficiency from tests (excluding machines for traction vehicles)

BSI Group, 03/31/1977

Publisher: BS

File Format: PDF

$125.00$251.46


Published:31/03/1977

Note:This product is unavailable in Ukraine, Russia, Belarus

Specifies losses to be included when calculating efficiency for different types of machine. Details calibrated machine test, zero power factor test, retardation method, electrical back-to-back test and calorimetric test.

All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS 10/30240271 DC

BS 10/30240271 DC

BS EN 61300-2-33. Fibre optic interconnecting devices and passive components. Basic test and measurement procedures. Part 2-33. Tests. Assembly and disassembly of fibre optic mechanical splices, fibre management systems and closures

$109.00 $218.21

BS 10/30218908 DC

BS 10/30218908 DC

BS 8020. Tools for live working. Specification for insulating hand tools for work on or near conductor rail systems operating at voltages up to 1000 V A.C. or 1500 V D.C

$101.00 $202.45

BS 10/30204688 DC

BS 10/30204688 DC

BS ISO/IEC 26511. Software and systems engineering. Requirements for managers of user documentation

$136.00 $272.49

BS 10/30215301 DC

BS 10/30215301 DC

BS ISO 23551-1. Safety and control devices for gas burners and gas-burning appliances. Particular requirements. Part 1. Automatic and semi-automatic valves

$141.00 $282.81