中文
■ Functional features
▲ support the detection of CT and Pt (protection, metering, TP) steady-state and instantaneous parameters.
▲ meet the requirements of GB1207, gb1208, gb16847 (iec60044-1, iec60044-6) and other regulations.
▲ power supply technology is adopted, and the excitation voltage is up to 30KV.
▲ the single machine has 0 ~ 200A high current output, which is convenient to check the integrity of the channel state of the secondary circuit of the transformer.
▲ all testing items can be completed by a single machine without external auxiliary equipment.
▲ it has its own micro fast printer, which can directly print the test results on site.
▲ intelligent controller is adopted, which is easy to operate.
▲ large screen LCD, graphical display interface.
▲ automatically give the (excitation) inflection point value according to the regulations.
▲ automatically give 5% and 10% error curves.
▲ 3000 sets of test data can be saved without loss after power failure.
▲ it supports transferring data from USB flash disk, which can be read through standard PC and generate test report.
▲ vs-2800a is small and light ＜ 10kg, which is very convenient for field test.
■ Technical parameters
| Project | VS- 2800A（Frequency conversion） | VS- 2800B（Power frequency） | |
| Working power supply | AC220V±10% 、50Hz | AC220V±10% 、50Hz | |
| Device output | 0 ～ 220Vrms， 5Arms（20A Peak value） | 0 ～ 2500Vrms， 5Arms（20A Peak value） | |
| Output current | 0 ～ 150A | 0 ～ 1000A | |
Secondary winding Direct resistance measurement | Range | 0.1 ～ 300Ω | 0.1 ～ 300Ω |
| Accuracy | ±0.5%、Resolving power 0.1 | ≤0.5%（0.2%* Reading +0.3%* Range） | |
Secondary reality Load measurement | Range | 5 ～ 1000VA | 5 ～ 1000VA |
| Accuracy | ±0.5% | ≤0.5%（0.2%* 读Reading+0.3%* Range）±0.1VA | |
| CT / Pt ratio difference measurement | Accuracy | ±4min | ±4min |
| CT / Pt angle difference measurement | Accuracy | ±0.05% | ≤0.05% |
| CT transformation ratio measurement | Range | 1-10000 | ≤25000A/5A（5000A/1A） |
| Accuracy | ±0.5% | ≤0.5% | |
| PT transformation ratio measurement | Range | 1-10000 | ≤500KV |
| Accuracy | ±0.1% | ≤0.5% | |
| Work environment | Temperature: - 10 ℃ ~ 40 ℃, humidity: ≤ 90%, altitude: ≤ 2000m | Temperature: - 10 ℃ ~ 40 ℃, humidity: ≤ 90%, altitude: ≤ 1000M | |
| Size and weight | Size: 380mm × 240mm × 180mm, weight: ≤ 8kg | Size: 410mm × 260mm × 340mm, weight: ≤ 18kg | |
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