The YDJ AC/DC Power Frequency Dielectric Withstand Test Device is a method for evaluating the insulation strength of electrical equipment. It identifies critical concentrated defects with high risk potential and plays a decisive role in determining whether electrical equipment can remain operational. This device serves as a vital solution for ensuring proper insulation performance and preventing insulation-related accidents. The KDYDJ AC/DC Power Frequency Dielectric Withstand Voltage Test Device is a voltage withstand testing instrument designed in accordance with national power industry standards. It is used to conduct insulation strength tests under specified voltage conditions on various electrical products, components, and insulating materials, enabling the evaluation of product insulation performance, identification of insulation defects, and assessment of overvoltage resistance capability.
High insulation strength, compact size, easy portability, and reliable quality
| Parameter | Value |
|---|---|
| Rated capacity | 1.5 to 100 kVA |
| Rated output current | 7.5–232.5 A |
| Rated output voltage | 0–220V(single-phase) or 0-430 V(shree-phase) |
| Power input | Three-phase AC 380V ±10% (single-phase AC 220V ±10%); 50Hz ±5 Hz |
| Input current | 7.5–250 A |
| Timing duration | 0–9999 seconds (Special mode supports extended operation) |
| Voltage accuracy | ≤1.0% ±1 digit (F.S) |
| Current accuracy | ≤1.0% ±1 digit (F.S.) |
| Note | If special parameter requirements apply, the design and manufacturing can be carried out according to the user's technical specifications. |
| Parameter | Value |
|---|---|
| Rated capacity | 1.5 to 100 kVA |
| Low-voltage side voltage | 400V |
| Low-voltage side current | 7.5–250 A |
| High-voltage side AC output voltage | 0–300 kV |
| High-voltage side AC output current | 0–3000 mA |
| High-voltage side DC output voltage | 510 kV |
| High-voltage side DC output current | 2140.3 mA |
| Measurement ratio | 1000:1 |
| Impedance voltage | 4–9% |
| Output voltage waveform | sine wave |
| Ratio error | <±1% |
| Waveform distortion rate | >3% |
| 允许连续满负荷运行时间 | <1–2 hours (temperature rise of 50°C) |
| No-load loss | 0.2% to 0.40% |
| Voltage measurement accuracy | 1.0% FS ±3 digits |
| Current measurement accuracy | 1.0% FS ±3 digits |
| Transformer insulation oil grade | Grade 25 insulation oil |
| Note | The parameters of the AC/DC dual-purpose test transformer are as listed in the table above. The rated DC voltage is 1.4 times that of the AC voltage, and the rated DC current is 0.7 times that of the AC current. |