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FUSE
/ MCB Test Set
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FUSE/MCB TEST SET Designed &
Developed by PRESTIGE ELECTRONICS is ideally
suited to determine current versus time characteristics
of various types of fuses, circuit breaker MCB etc.
Different models are available to suit different ratings
& applications.
System consists of precision regulated, Very low ripple,
variable DC constant current source, multirange time
interval meter which indicates the time taken for fuse
to blow. |
Specification :
Output
Current:
0-25, 0-50, 0-75, 0-100 or to 300A adjustable by coarse
&
fine controls.
Time Interval Meter : 6 Digit 12.5mm Red LED.
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a) |
Range:
9999.99 or 99999.9 Sec |
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b) |
Resolution:
0.01 Sec. & 0.1 Sec.
respectively. |
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c) |
Accuracy:
0.05% ± 2 Digits. |
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| Open Circuit
Voltage : |
4 to 5 V.DC |
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Supply : |
230V.AC
±
15%, 50Hz, or 415V.AC 3 PHASE |
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Metering : |
Digital Current Meter
Multirange Time Interval Meter
Digital Millivolt Meter 0.2000mV.DC
Digital
Temperature Indicator (Optional) |
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Operation : |
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System is
very easy to operate as follows. |
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Switch on the instrument. |
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Press the reset push-button
to reset the Time interval meter &
keep current zero. |
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Set desired value of current
to be passed by means of coarse,fine controls & set measure switch. |
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Select desired Time interval
meter range. |
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Connect FUSE/MCB under test. |
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Press START pushbutton. |
Instantaneously set value of
current will pass through the FUSE/MCB
& Time interval meter starts counting time. |
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The instant at fuse blows,
Time Interval meter stop counting & audio
buzzer indicating the fuse blown condition. |
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Note the time for the fuse to
blow. |
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Press RESET pushbutton. |
Connect new fuse & repeat the
same procedure. If required adjust the set
value
of current. |
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Outstanding
Advantages Of FUSE/MCB Test Set |
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Very easy to set test current
down to 0.1% resolution. ( Third & Fourth
digit ) simply by means of SET / MEASURE
switch, coarse & fine potentiomatric
controls only. NO EXTERNALARRAYS OF RHEOSTAT
OR LOAD IS REQUIRED, INSTRUMENT IS COMPLETE
BY ITSELF. |
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Either set current or test
current can be displayed at any instant by
SET / MEASURE switch. |
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Value of test current remains
constant irrespective of mains supply
variation or load variation. |
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Test current is regulated DC
with very very low ripple. Therefore R.M.S.
average & peak value of current is same
hence metering problems due to waveform
distortions are not encountered. |
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Response is very fast hence
measurement of time down to fractions of
second possible. |
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Operation at production line
is very simple because operator has to
simply press START button, on tripping audio
buzzer sounds there by alerting the
operator. |
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Equipment can also be used for : |
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Since the value of test
current is constant & separate Millivolt
meter is provided, it can be used to monitor
Millivolt drop of FUSE / MCB, contact etc. |
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Digital Temperature Indicator
with suitable thermocouple can be provided
to monitor temperature raise. |
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|
|Automatic
Turns Ratio Meter| |Pole Breaker Time
Interval Meter| |True
RMS Leakage Current Tester| |Regulated DC
Power SuppLY|
|MCB Fuse Tester Jig| |
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