Overview
Product introduction
NRFA Series CT PT Tester is mainly used for testing Protection type and measurement type of CT and PT. It is suitable for laboratory and field test.
Product characteristics
● Support for detection of CT and PT
● Meet GB1207 GB1208 and other procedures requirement.
● Complete all test items independently no need other auxiliary equipment.
● With mini printer can print test results on-site quickly.
● Use intelligent controller easy to operate.
● Large LCD graphical display interface.
● Output CT / PT (excitation) inflection point values automatically.
● Output 5% and 10% error curve automatically.
● 3000 sets of test data can be saved automatically not afraid of a sudden brownout.
● Support U disk transfer information that can be read through a standard PC and generate WORD reports.
● Compact and light weight the weight is less than 22Kg perfect for field testing.
Models
Technical Data
| Technical parameters | Model | ||
| NRFA-V | NRFA-H | ||
| Power supply | AC220V±10% 50Hz | ||
| Device output | 0 ~ 1000V (20A peak) |
0 ~ 2500Vrms 5Arms (20A peak) |
|
| High current output | 0 ~ 600A | 0 ~ 1000A | |
| Excitation measurement accuracy | ≤ 0.5% (0.2% * reading +0.3% * Range) | ||
|
Secondary winding resistance measurement |
Range | - | 0.1 ~ 300Ω |
| Accuracy | - | ≤ 0.5% | |
| Secondary actual load measurement | Range | - | 5VA ~ 1000VA |
| Accuracy | - | ≤ 0.5% | |
| Phase measurement (Angle difference) | Accuracy | - | ±4min |
| Resolution | - | 0.1min | |
| CT / PT ratio error measurement | Accuracy | - | ≤ 0.5% |
| Resolution | - | 0.1 | |
| CT ratio measurement | Range | ≤ 3000A/ 1A (15000A/5A) | 25000A/ 5A (5000A/1A) |
| Accuracy | ≤ 0.5% | ≤ 0.5% | |
| PT ratio measurement | Range | ≤ 500KV | 1KV ~ 500KV |
| Accuracy | ≤ 0.5% | ≤ 0.5% | |
| Operating Environment | Temperature: -10 ℃ ~ 40 ℃ humidity: ≤ 90% Altitude: ≤ 1000m | ||
| Dimension | 410mm × 260mm × 340mm | 400mm × 260mm × 260mm | |
| Weight | ≤ 22Kg | ≤ 22Kg | |
2. Functions:
| Main test functions | Model | ||
| NRFA-V | NRFA-H | ||
| CT | VA rating (excitation) curve | √ | √ |
| Knee point voltage | √ | √ | |
| Given 5% and 10% error curve automatically | √ | √ | |
| Simultaneous detection of three secondary wingdings | × | √ | |
| Ratio measurement | √ | √ | |
| Phase (angle difference) measurement | × | √ | |
| Polarity judgment | √ | √ | |
| Once through-flow test | √ | √ | |
| AC withstand voltage test | √ | √ | |
| Secondary load test | × | √ | |
| Secondary winding test | × | √ | |
| Core demagnetization | √ | √ | |
| PT | VA rating (excitation) curve | √ | √ |
| Knee point voltage | √ | √ | |
| Ratio measurement | √ | √ | |
| Polarity judgment | √ | √ | |
| Ratio error measurement | × | √ | |
| Phase (angle difference) measurement | × | √ | |
| AC withstand voltage test | √ | √ | |
| Secondary load test | × | √ | |
| Core demagnetization | √ | √ | |
