TRANSFORMERS
TYPE OF TRANSFORMER WITH A 2:1 TURNS RATIO.
WHAT IS A Step Down Transformer
IT'S SEGMENTS ARE 180 DEGREES APART.
WHAT IS THE COMMUTATOR?
A SAFETY DEVICE THAT WILL TRIP WITH A 5 MA IMBALANCE.
WHAT IS A G.F.C.I.?
PART THAT DOES'T ROTATE
WHAT IS THE STATOR?
A MOMENTARY PUSHBUTTON CAN BE USED TO START AND RUN A MOTOR IN THIS TYPE OF CIRCUIT.
WHAT IS A "MEMORY" CIRCUIT?
THIS SIDE OF A TRANSFORMER IS MARKED (X)
WHAT IS THE LOW VOLTAGE SIDE?
WEARS OUT DUE TO CONTACT WITH THE COMMUTATOR.
WHAT ARE (CARBON) BRUSHES?
ANOTHER NAME FOR AN AC. GENERATOR
WHAT IS AN ALTERNATOR?
DISCONNECTS THE START WINDING OF A SINGLE PHASE MOTOR.
WHAT IS THE CENTRIFUGAL SWITCH?
TWO PUSHBUTTONS ARE REQUIRED TO OPERATE A PUNCH PRESS THAT USES THIS LOGIC.
WHAT IS "AND" LOGIC?
USED WITH A CORRESPONDING METER TO MEASURE AMPACITY IN A SINGLE CONDUCTOR.
WHAT IS A CURRENT TRANSFORMER? (CT)
USED AS NON-ELECTRICAL FIELD WINDINGS.
WHAT ARE PERMANENT MAGNETS?
A HAND HELD METER THAT MEASURES THE STRENGTH OF THE MAGNETIC FIELD AROUND A SINGLE CONDUCTOR.
WHAT IS A CLAMP-ON AMMETER?
MOST LIKELY PART TO FAIL ON A SPLIT PHASE MOTOR
WHAT IS THE START CAPACITOR?
ANOTHER NAME FOR AN AUTOMATIC CONTROL CIRCUIT THAT USES A FLOAT SWITCH OR PRESSURE SWITCH ECT.
WHAT IS 2 WIRE CONTROL?
BY LAMINATING THE IRON CORE THESE ARE REDUCED THUS REDUCING HEAT AND ENERGY LOSS.
WHAT ARE EDDY CURRENTS?
BETTER NOT WIRE ME WITHOUT A LOAD ATTACHED.
WHAT IS A SERIES D.C. MOTOR?
CONVERTS ELECTRICAL ENERGY TO A LINEAR FORCE.
WHAT IS A SOLENOID?
LEADS THAT ARE BROUGHT OUT OF A THREE PHASE MOTOR ARE LABLED WITH THIS.
WHAT ARE "T" LEADS?
A MECHANICALLY OPERATED SWITCH THAT CAN HAVE NORMALLY OPEN, NORMALLY CLOSED OR A COMBINATION OF CONTACTS.
WHAT IS A LIMIT SWITCH?
THE WAY TRANSFORMER POWER LIMITS ARE RATED ON THEIR NAMEPLATE.
WHAT IS KILOVOLT-AMPRE?
(KVA)
DEPENDS ON THE STRENGTH OF THE MAGNETIC FIELD.
WHAT IS TORQUE?
BECAUSE OF THIS YOU SHOULD "BUNNY HOP" AWAY FROM DOWN POWERLINES.
WHAT IS STEP POTENTIAL?
THE 3 PHASE WINDINGS ARE WIRED IN PARALLEL FOR THIS VOLTAGE.
(DUAL VOLTAGE MOTOR)
WHAT IS LOW VOLTAGE?
THESE PUSHBUTTONS ARE WIRED IN SERIES.
WHAT ARE "STOP" PUSHBUTTONS?