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.
