G.E. PAGES 1-7 Flashcards
THE LINKS IN THE POWER SYSTEM CHAIN ARE: GENERATOR, POWER TRANSFORMERS, SWITCHGEAR, TRANSMISSION LINES, DISTRIBUTION CIRCUITS, AND THE UTILIZATION APPARATUS.
TRUE
WHAT IS THE MOST VULNERABLE PORTION OF THE CHAIN
TRANSMISSION LINES
RELAYS REDUCE THE NUMBER OF ALTERNATE LINKS TO AVOID EQUIPMENT DAMAGE OR LIMIT DAMAGE TO A SINGLE UNIT
TRUE
THE DIFFERENCE BETWEEN PRIMARY AND BACKUP RELAYING IS THAT PRIMARY IS THE SECONDARY DEFENSE AND ISOLATES A GREATER PORTION OF THE CHAIN. BACKUP RELAYING IS THE FIRST LINE OF DEFENSE AND ISOLATES A MINIMUM PORTION OF THE CIRCUIT.
FALSE
A DEVICE WHEN ENERGIZED BY SUITABLE CURRENTS, VOLTAGES, OR BOTH, RESPOND TO THE MAGNITUDES AND RELATIONSHIPS OF THOSE CURRENTS AND VOLTAGES TO INDICATE OR ISOLATE AN ABNORMAL CONDITION WOULD BEST DESCRIBE A PROTECTIVE RELAY
TRUE
WHAT ARE THE 4 BASIC TYPES OF ELECTROMAGNETIC RELAY OPERATING ELEMENTS
PLUNGER, HINGED ARMATURE, INDUCTION DISK, INDUCTION CUP
WHICH ELEMENT IS USED AS A TIME DELAY
DISK
WHAT IS THE ADVANTAGE OF THE INDUCTION CUP
INSTANTANEOUS OPERATION WITH THE ABILITY TO MONITOR SEVERAL ELECTRICAL QUANTITIES
OPERATING CHARACTERISTIC CURVES IS A GRAPH DEPICTING THE RELATIONSHIP OF QUANTITIES THAT WILL CAUSE THE RELAY TO OPERATE
TRUE