Features and Advantages
1.The device has three test modes: on-line automatic, single-machine automatic and single-machine manual.
2.The device adopts RS485 communication port, stable communication signal and strong anti-interference ability.
3.The primary and secondary wiring of the current standard transformer is automatically switched according to the parameters set by the computer.
4.You can choose any station for verification, and display the station in the test process synchronously.
5.The system has a variety of perfect protection functions such as over current and over voltage protection, polarity error, signal failure, etc
6.The error management software can record, print and back up the testing data according to the requirements of the verification regulations, and modify the certificate format as required
7.The device appearance design is beautiful, humanized function design, automatic function display, greatly optimize the working environment.
8.The voltage/ current load box’s gear can be switched automatically through programming,eliminating the need for manual calculation and manual gear shifting.
Parameter
- System composition
- Environmental conditions for the use of CT/PT testing system
- CT/PT Testing system parameters
- Programmable Load box Technical Parameters
| Name | Function |
| Transformer Verification mete | Current transformer technical performance verification |
| Programmable transformer Load Box | Provide various effective loads when testing transformers |
| Self-Ascending Standard CT | Provide the required high current for the test and also conduct data comparison for the transformers |
| Transformer software verification management | Data management, CT PT test control |
| Standard PT |
| Temperature | -10~50℃ |
| Relative humidity | <80% (25℃) |
| Elevation | <2500m |
| Power frequency | 50Hz/60Hz ±10% |
| Power supply voltage | 220V ±10% |
| Power supply voltage | 220V±10% |
| Working range | Current： Primary current： 5~3000A Secondary current： 1A, 5A Accuracy Class ： 0.02（S） |
| Voltage: Primaryvoltage: (2.4KV, 4.16KV, 6.3KV, 7.2KV, 8.4kV, 13.2KV , 13.8kV, 23kV, 34.5KV, 46kV, 69KV）/√3 | |
| Secondary voltage：（100V、115、120、127）/√3 | |
| Accuracy Class：0.02 | |
| Measuring range | In-phase component (%): 0.0001 ~ 200.0 Resolution :0.0001 |
| Orthogonal component (min):0.001 ~ 700.0 Resolution :0.001 | |
| Impedance (Ω): 0.0001 ~ 20.0 Resolution :0.0001 | |
| Admittance (ms) : 0.0001 ~ 20.0 Resolution :0.0001 |
| Rated Load | Current ： 2.5VA~40VA COSΦ=0.8（selectable）；2.5VA~10VA COSΦ=1.0（selectable） |
| Voltage: 1.25VA~250VA COSΦ=0.8（selectable）； 1.25VA~250VA COSΦ=1.0（selectable） | |
| Measuring range and accuracy | Current： 1%~120%（optional 200%） |
| Voltage: 20%~120%（optional 200%） | |
| Secondary current： 5A | |
| Accuracy： ±3% ±0.05 VA |
