Electro Technical Officer

Possible Cause : Exciter winding open circuit Faulty exciter armature Faulty AVR Revolving field coil open circuit or shortcircuited

Possible Cause :   AVR may be faulty Field windings short-circuited Rotating diodes burnt out Revolving field coil short-circuited Check the resistance Speed too low

Possible Cause :   Faulty diodes Armature short-circuit Check the connection of the voltage reference to the AVR Lack of residual magnetism Faulty AVR Field windings open circuit (check winding) Revolving field coil open circuit (check the resistance)

COMPETENT MARITIME PROFESSIONALS AND SEA STAFF (COMPASS) TRAINING CENTER, INC. 1913 Taff Avenue corner Remedios Street, Malate Manila Tel. No.: 353-5487, 528-1035, 526-8069 FAR EAST MARITIME FOUNDATION, INC. - MANILA Rm. 906, 9/F Victoria Bldg, 1503 U.N. Avenue Ermita, Manila Tel. No.: 526-2477, 536-9471, 526-8069 GIGAMARE INC. Bldg 2082 Coregidor Highway, Naval Magazine Area, Subic Bay Freeportzone Tel. No.: (02) 8013253 NORWEGIAN TRAINING CENTER - MANILA NTC-M Building, Gate 2 TESDA Complex, East Service Road, Taguig Ciy Tel. No.: 812-0742 PHILIPPINE CENTER FOR ADVANCE MARITIME SIMULATION AND TRAINING, INC. (PHILCAMSAT) 2/F First Maritime Place, 7458 Bagtikan Street, San Antonio Village, 1203 Makati City Tel. No.: 898-1109 SEA QUEST MARITIME TRAINING INC. MMAP House, 1729 F. Agoncillo Street, Malate Manila Tel. No.: 255-9088 UNITED MARINE TRAINING CENTER INC. MNTC Building 2120, Leon Guinto Street, Malate Manila Tel. No.: 981-6682

Why is a Megger used for insulation test and not a multi meter