Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1255
counterE. M. F. to cause the proper current to flow. 1220 V Steam Engineering ARMATURE TROUBLES. 879. How do armature troubles manifest themselves?Ans, Either by excessive sparking at the commutator, or by abnormal heating of the armature. 880. What are the causes of such troubles? Ans. They may… … Cr^^ ^.^^^
