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| THREE
PHASE METER TEST BENCH |
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Three
phase meter test bench suitable for calibration &
testing of AC Ammeters, Voltmeters, Single phase Energy
Meters, Watt Meters, Power Factor Meters, Three Phase Two
Wire & Three Phase Four Wire Energy Meters Trivector
Meters, Maximum demand indicators, of active &
reactive systems, Three phase 3 wire & 4 wire watt
meters, Var Meters, Power Factor Meters etc. Other
Technical Specifications are as under :
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TECHNICAL
SPECIFICATION:-
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INPUT
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400/440
V., A.C. 3 Phase 50 Hz.
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OUTPUT
TEST VOLTAGE
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3
x 110/64V., 3 x 440/254V.
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TEST
VOLTAGE
REGULATION
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0-120%
of the selected range of test voltage.
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CREEP
TEST VOLTAGE
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75%,
80%, 100%, 110% & 120% of selected voltage.
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CURRENT
RANGE
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0.5-1-2.5-5-10-25-50
& 100A
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CURRENT
REGULATION
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0
to 120% of range selected.
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STARTING
CURRENT
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0.5%,
0.75%, 1% &1.5% of the range selected.
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PHASE
SHIFT
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Built-in
Phase Shifting Transformer static type, phase angle
variation 90 degree Lag Unity 90 degree lead &
in between values continuously variable.
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OUTPUT
VOLTAGE BURDEN
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Per
phase as per your requirements
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OUTPUT
CAPACITY
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As
per your requirements
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INSTRUMENT
TRANSFORMERS
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3
Nos. with sufficient capacity
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POTENTIAL
TRANSFORMER
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3
Nos. Accuracy class 0.5
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CURRENT
TRANSFORMER
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3
Nos. accuracy class 0.2
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CURRENT
REVERSAL FACILITY IN EACH PHASE.
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PHASE
SEQUENCE INDICATOR
THE POWER SOURCE WILL BE PROVIDED WITH THE FOLLOWING
MAJOR COMPONENTS:-
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1.
3 pole main supply for isolator.
2. Main H.R.C. fuses to protect the system from short
circuit.
3. Voltage circuit contactors with overload relay controlled
by push button switches.
4. Current circuit contactors with overload relay controlled
by push button switches.
5. Push button switches simultaneous operation of Current
and voltage circuit.
6. Current coarse selector switch in each phase.
7. Current fine regulation switch in each phase.
8. Voltage regulation in each phase.
9. Power factor coarse selector switch to regulate 30 degree
phase shift.
10. Power factor fine regulation in each phase.
11. Voltage range selector.
12. Current range selector.
13. Partial load reduction selector switch.
14. Burden selector switch.
15. Forward / Reverse switches in each phase.
16. Indicating lamps for current circuit.
17. Indicating lamps for voltage circuit.
18. Indicating lamps for main 'ON'.
19. Provision of Individual Phase selection.
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INDICATING
INSTRUMENTS:-
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DIGITAL
AMMETERS
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3
Nos.
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SINGLE
PHASE POWER FACTOR METERS
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3
Nos.
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DIGITAL
VOLTAMETERS
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3
Nos.
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DIGITAL
FREQUENCY METER
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1
Nos.
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The
complete system will be assembled in powder coated M.S.
horizontal cabinet duly wired and tested. The wiring will be
in colour code with ferrules matching circuit diagram will
be supplied with the equipment.
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rights reserved by
SUPREME INSTRUMENT LABORATORIES @ 2006
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