Instrument transformer (CT & PT) test set
Product Code : ITST006
Description: 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.
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.
