|
Apart
from manufacturing the mentioned test sets, we also
manufacture equipment according to
specific requirements of
customer.
 PHANTOM LOAD TEST SET
KWH METER TEST BENCH - 1PH
KWH METER TEST BENCH - 3 PH/1PH
PHASE SHIFTER
Phantom Load Test Set
These portable test sets with selectable three phase test voltage,
adjustable test current and fully controllable power factor are suitable for site as
well as laboratory testing of three phase kWh meters
or instruments where specific selection and
precise control of outputs are absolutely essential.
|
Type
|
Mains
Input
|
Rated
Test Voltage
|
Creep
Test Voltage
|
Test
Current
|
Starting
Current
|
Input/
phase
|
Output/
Phase
|
Metering
(Digital)
|
|
PLNT1P01
|
415V,
3 ph., 4 wire, 50Hz.
AC
|
230V,
1 ph., 50Hz.
AC
|
253V
|
Continuously
variable from 0
to
120%.
0-5A,
0-10A
& 0-20A
|
0
to 200mA
|
100VA
|
50VA
|
Ammeter-
1 no.
Voltmeter-
1no.
Power
Factor meter-
1no.
|
|
PLNT3P03
|
415V,
3 ph., 4 wire, 50Hz.
AC
|
110V
or 400V, 3 ph., 4 wire, 50Hz.
AC
|
121V
or 440V
|
Continuously
variable
0-1A
or
0-5A
|
5,
25mA
|
30VA
|
Not
less than 5VA
|
3
nos. Ammeter, 1 no. Voltmeter with selector switch.
Phase
angle meter-
1no.
|
|
PLNT3P04
|
415V,
3 ph., 4 wire, 50Hz. AC.
Optional:
110V
|
110V
or 400V, 3 ph., 4 wire, 50Hz. AC
|
121V
or 440V
|
Continuously
variable
0-1A
or
0-5A
|
5,
25mA
|
30VA
|
Not
less than 5VA
|
"
|
|
PLNT3P05
|
415V,
3 ph., 4 wire, 50Hz. AC.
|
110V
or 400V, 3 ph., 4 wire, 50Hz. AC
|
121V
or 440V
|
Continuously
variable
0-1A
or
0-5A
|
0.5%,
1%,
1.5%
of the selected current range
|
30VA
|
Not
less than 15VA
|
"
|
Phase
Shifter: Capacity 100VA
Type: PLNT1P01 adjustable at any value between 0 lag-0.5 lag-unity-0.5
lead.
Type: PLNT3P03, PLNT3P04,
PLNT3P05
adjustable at any value between 0-3600
by coarse and fine control.
Phase sequence indicator with press to read switch.
Apart from the Type of Sets mentioned above, test sets are
also manufactured as required by customer.
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KWH METER TEST BENCH - 1PH
Single
phase kWh meter test
bench has been designed to meet the power supply requirement for
testing different types of single phase kWh meters and provides high
degree of operational convenience to carry
out calibration checks,
performance tests of the meters as per Indian Standard
Specification. There is provided terminals for connecting external
R.S.S or Wattmeter. It will provide selection and regulation of
output voltage and current ranges with full variation of power
factor from zero to unity lag, as well as on lead.
A
separate meter suspension rack with appropriate wiring and fitting
will be supplied.
|
Type
|
Input
|
Output
voltage
|
Test
current
|
No.
of 1 phase kWH meters to be tested
|
|
MNTB1P01
|
3
phase, 4 wire, 400/440V, 50Hz. AC.
|
Continuously
variable 0-260V AC.
|
0.25,
0.5, 2.5, 10, 20 & 40A
|
72
|
|
MNTB1P02
|
3
phase, 4 wire, 3x240V/415V, 50Hz AC.
|
Continuously
variable 0–300V AC.
|
0.25,
0.5, 1, 2.5, 5, 10, 20, 40 , 50 & 100A
|
40
|
|
MNTB1P03
|
3
phase, 4 wire, 3x240V/415V, 50Hz AC.
|
Continuously
variable 0–300V AC.
|
0.5,
1, 2.5, 5, 10, 20, 30 &
40A
|
40
|
|
MNTB1P04
|
3
phase, 4 wire, 400/440V, 50Hz AC.
|
Continuously
variable 230/240VAC.
|
0.5,
1, 2.5, 5, 10, 20, 40 &
80A
|
100
|
|
MNTB1P05
|
3
phase, 4 wire, 400V, 50Hz. AC.
Subject
to variation: -5% to +10% of voltage
& +
2.5% of frequency
|
Continuously
variable 0 to 230/240V AC.
|
0.5,1,2.5,
5, 10, 20, 25, 40 & 50A
|
120
|
|
MNTB1P06
|
3
phase, 4 wire, 415V, 50Hz AC.
|
Continuously
variable 0-240VAC.
|
1,
5, 10, 20, 30 &
50A
|
15
|
|
MNTB1P07
|
3
phase, 4 wire, 400/440V, 50Hz AC.
|
Continuously
variable 0-300V AC.
|
0.25,
0.5, 1, 2.5, 5, 10 & 20A
|
50
|
|
MNTB1P08
|
3
phase, 4 wire, 400/440V, 50Hz AC.
Subject
to variation: -5% to +10% of voltage
& -2%
to +1% of frequency
|
Continuously
variable 0-300V AC.
|
0.25,
0.5, 1, 2.5, 5, 10 , 20 & 40A
|
50
|
Phase
Shifter
Phase Shifting can be done at any value to keep power factor
to Unity - 0 lag - Unity - 0 lead.
The test set is also
provided with the following facilities.
Creep test voltage source
Inching switch
Starting current of any rated test current.
Metering:
Voltmeters,
Ammeters, Wattmeters' (if any), Flush mounted type.
Power
Factor Meter is provided with some of the mentioned test benches.
Protection:
Adequate
protection circuit will be provided against overload.
Apart from the
existing Types, sets as per requirement of customer may also
be manufactured.
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KWH
METER TEST BENCH - 1PH/3PH
Three
phase & Single phase kWh
meter test bench have been designed to meet the power supply
requirement for testing. It will provide selection and regulation of
output voltage and current ranges with full variation of power
factor from zero to unity lag, as well an on lead. The test bench
will facilitate to carry out performance tests of the kWh meters as
per IS specification - 722 - 1986 with latest amendment if any.
Scope for testing kvarh meters
are also provided. CT / PT operated 3 phase kwh
/ kvarh meters (3 wire/4 wire) can also be tested.
A
separate meter suspension rack having capacity to accommodate both
single phase and 3 phase meters with appropriate wiring and fitting
will be supplied.
Type:
MNTB3P01
3ph. Meter Test Bench
|
Type:
MNTB3P01
Meter Suspension Rack of 3ph. Meter Test Bench
|
|
Type
|
Input
|
Output
voltage
|
Test
current
|
No.
of kWH meters to be tested
|
|
MNTB3P01
|
3
phase, 4 wire, 415V (+10%), 50Hz. AC.
|
3x110V/64V,
3x220V/127V
&
3x440V/254V
AC.
|
0.1,0.25,0.5,1,2.5,
10,20,50 & 100A
|
3
phase-6nos.
1
phase-15 nos.
|
|
MNTB3P02
|
3
phase, 4 wire, 415V / 3x240V, 50Hz. AC.
|
3x110V/64V
&
3x440V/254V
AC.
|
0.1,
0.25,0.5,1,2.5, 5, 10 & 20A
|
3
phase-20nos.
1
phase-45 nos.
|
|
MNTB3P08
|
3
phase, 4 wire, 400V, 50Hz. AC.
Subject
to variation: 380V to 440V & + 2% of frequency
|
125-250-500V,
3 phase, 4 wire, 50Hz. AC.
|
0.1,
0.25, 0.5, 2.5, 5, 10, 20, 30 & 60A
|
3
phase-20nos.
1
phase- 60 nos. for Creep/MRCD testing
1
phase-30nos. for loading 10-40A.
|
Type:
MNTB3P08
3ph. Meter Test Bench |
Type:
MNTB3P08
Meter Suspension Rack of 3ph. Meter Test Bench |
|
Phase
Shifter
Phase
Shifting can be done at any value between 0 to 3600 by
coarse & fine control.
The test set is also provided with the following facilities.
Creep test voltage source
Inching switch
Torque balance
Burden selection.
Phase compensation.
kvarh selector
switch.
Starting current of
any rated test current.
Metering:
Voltmeters,
Ammeters & Wattmeters (if any) Flush mounted type.
P.F.
meter is provided for some specific mentioned Types.
Protection:
Adequate protection circuit will be provided against
overload.
Apart
from the existing Types, sets as per requirement of customer may
also be
manufactured.
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Phase
Shifting Transformer
“NTPL” make portable Phase Shifting Transformer has wide
application in the field of electrical engineering,
particularly in the field of testing relays
having directional element, distance relays, kWh meters,
watt meters etc.
The
Set is ideal for both laboratory & field use.
Phase Shifting Unit of 3 Phase
Phase Shifter in Two Units
(with phase angle meter) |
Control & Measuring Unit of 3 Phase shifter in Two
Units
(with phase angle meter) |
3 Phase
Shifter (One Unit)
(With Phase Angle)
|
Input
:
415V, 3 phase, 4 wire, 50Hz. AC.
Output
:
3 Ph. Phase
Shifter
415V, 3ph.,4 wire , 50Hz. AC or 110V, 3 ph., 4 wire, 50Hz. AC.
1 Ph. Phase Shifter
240V, 1ph. , 50Hz., AC or
63.5V ,1 ph., 50Hz. , AC.
Capacity: 250VA / 500VA / 600VA / 750VA / 1 KVA.
Phase Shifting can be done at any value between 0 to 3600
by coarse & fine control.
One direct reading built-in phase angle meter can be
provided at an
extra cost.
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