VLF Hipot instrument for an 80 kV test of the equipment. Here's a detailed guide:
1.
| 80 kV peak (≈56.6 kV RMS) | |
| 0.1 Hz (or lower for long cables) | |
| IEEE 400.2, IEC 60502-2, HD 620 S1, etc. |
2.
A.
80 kV peak output.
Since VLF testers are often rated in RMS, 80 kV peak=56.6 kV RMS.
Choose a model rated >=60 kV RMS to ensure margin and duty cycle.
B.
for compatibility with diagnostic standards (IEEE 400.2, IEEE 400.4).
C.
0.1 Hz for cables up to ~2 km
adjustable 0.1–0.01 Hz
3.
Cables act as capacitors - your instrument must supply enough charge.
Maximum load (e.g., 1 µF @ 80 kV)
at 0.1 Hz
.
4.
| 15–60 minute programmable duration | |
| Data logging, USB/PC export, built-in memory |
5. Optional Diagnostic Add-ons
| Locates insulation defects, weak joints, etc. |
.
6. VLF Instruments for 80 kV Testing
| b2hv | HVA90 | 0.1 Hz, 90 kV peak (63.6 kV RMS) | |
| VLF Sine 62 TD | 62 kV RMS (88 kV peak) | ||
| TD90 or HVA60TD | Up to 90 kV peak | ||
| Up to 80–90 kV peak | |||
| 80–100 kV custom units |
7.
| >= 60 kV RMS (≈80 kV peak) sinewave output | ✅ |
| Complies with IEEE 400.2, IEC 60502-2 | ✅ |
| Adjustable test time (15–60 min) | ✅ |
| Frequency range down to 0.1 Hz or lower | ✅ |
| Field-portable with proper cooling | ✅ |
| ✅ | |
| ✅ |