76
SPECIFICATIONS
DESCRIPTION
The Megger Model SR-98 is the newest addition to the long successful line of Megger
“SR” series, like the SR-51, SR-76 and SR-90 relay tests. With almost 50 years of relay
testing experience, the SR-98 incorporates the latest in Digital Signal Processor (DSP)
and microprocessor-based technology to provide a powerful, easy to use relay test set.
The SR-98 is a multipurpose, lightweight, field portable, test set capable of testing a
wide variety of electromechanical, solid-state and microprocessor-based protective
relays, small molded case circuit breakers, motor overload relays and similar protective
devices.
In the picture below, reference points 1,2 and 3 are interface ports for computer, printer
and other SR-98 or Models PVS/EPS-1000. Points 4 and 5 are associated with the
circuit breaker simulator
circuit. Number 6 is the
Timer Start and Stop
Gates. Point 7 is the
resistor bank. Points 8, 9
and 10 are associated with
the power input and
ground terminal. Points 11
and 12 are associated with
the main current output
terminals. Reference point
13 is the external voltage
and current measurement
terminals. Points 14, 15
and 16 are associated with
the AC, DC (AUX) voltage
outputs. Number 17 is the
system reset button. Point
18 is the control knob. Point 19 is the power on switch. Reference point 20 is the LCD
display screen, while 21 is the alarm reset switch. Points 22 and 23 are the TRIP and
SYNC LED lamps. Point number 24 is the Initiate switch, and 25 is the Print Screen
button. Reference point 26 is associated with the up/down, right/left cursor keys.
The SR-98 incorporates a large, easy to read, LCD display, which displays AC and DC
Amperes, AC and DC Volts, and Time in both Seconds and Cycles. Depending on type
of test selected, other values may be displayed, such as Ohms, Watts, VARS, Phase
Angle, Frequency or Power Factor. Metered quantities such as AC Amperes, AC Volts,
DC Volts or DC Amperes, and Time, are all simultaneously displayed on the display
screen. The read-and-hold feature of the metering provides fast and accurate preset of
test values. Function buttons provide very powerful testing capabilities. A relay specific test
screen is provided from a
Содержание SR-98
Страница 93: ...87...