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Apart
from manufacturing the mentioned test sets, we also
manufacture equipment according to
specific requirements of
customer.
Instrument
transformer (CT & PT) test set
CT
TEST SET
A] CT
TEST BRIDGE:
This test
bridge is suitable for testing current transformer having secondary
current of 5A and 1A.
Input
Voltage
:
230V, 50Hz. , 1 phase AC.
Secondary
Current
:
5A and 1A.
Phase
Angle Error Range
:
0 to + 20 minutes on x1 range
0 to + 100 minutes on x5 range
0 to + 400 minutes on x20 range
Ratio
Error Range
:
0 to +
0.5% on x1 range
0 to
+ 2.5% on x5 range
0
to +10% on x20
range
Polarity
Check
:
Polarity indicated by lamp with "check" position
selection.
Ammeter
:
One digital ammeter to indicate the injected current in %.
Detector :
A built-in detector of electronic type.
Test
Bridge having secondary current of 5 Amps. only is also
manufactured.
C. T. Test Set |
B]
burden box:
Rated current
:
5 Amps., 1 Amps.
Power factor
:
0.8 lag, unity
Burden
:
2.5, 7.5, 15 and 30
VA.
Accuracy of adjustment :
Within i) +
3% of burden value.
ii)
+ 2 electrical degree for angle.
C] precision current TRANSFORMER: 5 amps. & 1 amps.
Primary
:
Wound
: 5, 10, 15, 30 & 50
Amps.
Bar
:
By winding number of turns through center hole, following
ranges can
achieved
- 100, 200, 300, 400,500, 600, 1000, 1200, 2000A.
Secondary :
5 Amps. & 1 Amps.
Burden
:
5 VA.
Accuracy :
Class 0.1.
Voltage
grade :
600V
Termination :
The
wound primary & secondary will be terminated on suitable brass
studs
duly marked.
Construction :
The complete
transformer will be housed within a polished wooden case
provided with center hole & carrying handle.
PT TEST SET
A] PT
TEST BRIDGE:
This test
bridge is suitable for testing potential transformer having
secondary voltage of 110V and 63.5V.
Input Voltage
:
230V, 50Hz. , 1 phase AC.
Secondary voltage
:
110V and 63.5V.
Phase Angle Error Range
:
0 to + 20 minutes on x 1 range
0
to + 100 minutes on x 5 range
0 to + 400 minutes on x 20 range
Ratio Error Range
:
0 to +
0.5% on x1 range
0 to
+ 2.5% on x5 range
0 to +10%
on x20 range
Polarity Check
:
Polarity
indicated by lamp with "check" position selection.
Voltmeter
:
One
digital voltmeter to indicate the secondary voltage.
Detector
:
A built-in detector of electronic type.
Test Bridge having secondary voltage of 110V only is also
manufactured.
B]
burden box:
Rated current
:
110V, 63.5V
Power factor
:
0.8 lag, unity
Burden
:
5 to 200 VA in steps.
Accuracy of adjustment :
Within i) +
3% of burden value.
ii)
+ 2 electrical degree for angle.
C] precision potential TRANSFORMER
Primary
:
33KV or 11KV
Secondary
:
110V
/ 63.5V
Burden
:
5 VA.
Accuracy
:
Class 0.2
System voltage
:
33KV effectively earthen.
Termination
:
HT
& LT on suitable insulated terminals.
Type
:
Cast Resin Air Cooled
with carrying handle.
D] precision potential TRANSFORMER
Primary
:
400, 660, 2200, 3300 or 6600V
by series parallel combination.
Secondary
:
110V
Burden
:
5 VA.
Accuracy
:
Class 0.2
System voltage
:
6.6KV
effectively earthen.
Termination
:
HT
& LT on suitable insulated terminals.
Type
:
Cast Resin Air Cooled
with carrying handle.
Precision Potential
Transformer of other Voltage, Burden & Accuracy class are also
manufactured as per customers’ requirement.
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Standard
Instrument, CT & PT
precision current TRANSFORMER: 5 amps. & 1 amps.
Primary
: Wound
: 5, 10, 15, 30 & 50
Amps.
Bar : By winding number of turns through center hole, following
ranges can achieved
- 100, 200, 300, 400,500, 600, 1000, 1200,
2000A.
Secondary :
5 Amps. & 1 Amps.
Burden
: 5 VA.
Accuracy :
Class 0.1.
Voltage grade : 600V
Termination : The
wound primary & secondary will be terminated on suitable brass
studs duly marked.
Construction : The
complete transformer will be housed within a polished wooden case
provided with center hole & carrying handle.
Current Transformer of other Current range, Burden & Accuracy
class are also manufactured as per customers’ requirement.
precision potential TRANSFORMER
Primary : 33KV or 11KV
Secondary :
110V / 63.5V
Burden
: 5 VA.
Accuracy :
Class 0.2
System voltage : 33KV
effectively earthen.
Termination : HT
& LT on suitable insulated terminals.
Type
: Cast Resin Air Cooled
with carrying handle.
precision potential TRANSFORMER
Primary : 400, 660, 2200, 3300 or 6600V
by series parallel combination.
Secondary :
110V
Burden
: 5 VA.
Accuracy :
Class 0.2
System voltage : 6.6KV
effectively earthen.
Termination : HT
& LT on suitable insulated terminals.
Type
: Cast Resin Air Cooled
with carrying handle.
Potential Transformer
of other Voltage, Burden & Accuracy class are also manufactured
as per customers’ requirement.
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Burden Box for CT & PT
burden box for CT:
Available in four
sets
|
Rated current
|
Power Factor
|
Burden
|
Accuracy of adjustment
|
|
5
A
|
Unity
|
2.5, 7.5,
15, 30VA
|
Within
i) + 3% of burden value. ii) + 2
electrical degree for angle.
|
|
5A
|
0.8 lag
|
"
|
"
|
|
1A
|
Unity
|
"
|
"
|
|
1A
|
0.8 lag
|
"
|
"
|
Burden Box of other
Burden & Accuracy class are also manufactured as per
customers’ requirement.
burden
box for PT:
Available in four sets
|
Rated voltage
|
Power Factor
|
Burden
|
Accuracy of adjustment
|
|
110V
|
Unity
|
5 to
200VA in steps
|
Within
i) + 3% of burden value. ii) + 2
electrical degree for angle.
|
|
110V
|
0.8 lag
|
"
|
"
|
|
63.5V
|
Unity
|
"
|
"
|
|
63.5V
|
0.8 lag
|
"
|
"
|
Burden Box of other
Burden & Accuracy class are also manufactured as per
customers’ requirement.
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CT
KNEE POINT EXCITATION TEST SET
Input
:
230 Volts, 50Hz, single phase AC.
Output:
Variable from 0 - 1000V AC, 1 phase, in 3-ranges i.e.
0
to 10 Volts AC at 2 Amps Max.
OR
0 to 100 Volts AC at 2 Amps. Max.
OR
0 to 1000 Volts at 1 Amps Max.
Duty:
5 mins. ON & 15 mins. OFF.
Metering:
Digital Frequency Meter - 1no.
3
1/2 digit Digital Voltmeter having 3 ranges-1no.
3
1/2 digit Digital Ammeter having –1no.
The set is provided with zero-start interlocking, overload and
short circuit protection.
The Set also is provided with surge and harmonic suppressor to
get quality AC voltage, which is a basic
requirement for this.
The set is a nice looking portable sheet steel cubicle.
The
set can also be available in automatic mode.
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CT
EXCITATION CURRENT CUM AC HIGH VOLTAGE TEST SET
Series:
CTECAHV2; Type: 001K01A
The Test Set
will be capable of measuring the following parameters of a CT based
on Voltage Comparison Method.
i.
Magnetising Characteristic
ii. CT Ratio
iii.
Polarity
Input:
230 Volts, 50Hz., single phase AC.
Output: Continuously
variable in 4 ranges.
0
to 40 V at 1.5 A Max.
0
to 150V at 1.5 A Max.
0
to 600V at 1.5 A Max.
0
to 1000V at 1.0 A Max.
Power supply Transformer is isolation type with electrostatic
shielding.
Duty:
5 mins. ON, 15 mins. OFF.
Metering: 4½ digit Digital voltmeter used for measuring
primary & secondary voltages.
4½ digit Digital ammeter used for measuring excitation
current.
Hold
facility is provided to freeze the readings on meters.
Auxiliary D.C. Power supply and LED indicator is provided to
detect the polarity of CT under Test.
Microcomputer based version of this set is also available.
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Series: CTECAHV1; Type: 003K200m
Input:
230 Volts, 50Hz., single phase AC.
Output: Continuously
variable in 4 ranges
0
to 100 V at 2A Max.
0
to 1000V at 1A Max.
0
to 2500V at 0.5 A Max.
and for AC High Voltage Test mode 0 to 3000V at 0.2 A Max.
Tripping circuit at 50mA, 100mA & 200mA
provided.
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