EVT for Unigear, KYN, XGN
EVT-XXD-P Series support voltage sensors made of epoxy resin by vacuum casting. Integration of support insulator and high-precision voltage sensor functions.
Technical Characteristics — EVT-D-P, 100 V
| Parameter | 10 kV | 20 kV | 35 kV |
|---|---|---|---|
| Insulation class | 10/42/75 kV | 20/65/125 kV | 35/90/195 kV |
| Phase transformation ratio | 10/√3 : 100 V/√3 | 20/√3 : 100 V/√3 | 35/√3 : 100 V/√3 |
| 3U0 transformation ratio | 10/√3 : 200 V/3 | 20/√3 : 200 V/3 | 35/√3 : 200 V/3 |
| Phase accuracy class | 0.5 | ||
| 3U0 accuracy class | 1 / 3P | ||
| Partial discharge level | ≤10 pC, 1.2 Un | ||
| Load | ≥2 kΩ // ≤500 pF | ||
| Supply voltage | AC/DC 30...240 V | ||
| Output power per channel | 2 VA, up to 15 VA optional | ||
| Frequency | 50/60 Hz | ||
| Height | 75...380 mm | ||
| Rated voltage factor | 1.9 Un, 8 h | ||
| Temperature | −40...+70°C | ||
| Insulation | Epoxy resin | ||
| Standard | IEC 61869 |
Insulation class
10 kV
10/42/75 kV
20 kV
20/65/125 kV
35 kV
35/90/195 kV
Phase transformation ratio
10 kV
10/√3 : 100 V/√3
20 kV
20/√3 : 100 V/√3
35 kV
35/√3 : 100 V/√3
3U0 transformation ratio
10 kV
10/√3 : 200 V/3
20 kV
20/√3 : 200 V/3
35 kV
35/√3 : 200 V/3
Phase accuracy class
All
0.5
3U0 accuracy class
All
1 / 3P
Partial discharge level
All
≤10 pC, 1.2 Un
Load
All
≥2 kΩ // ≤500 pF
Supply voltage
All
AC/DC 30...240 V
Output power per channel
All
2 VA, up to 15 VA optional
Frequency
All
50/60 Hz
Height
All
75...380 mm
Rated voltage factor
All
1.9 Un, 8 h
Temperature
All
−40...+70°C
Insulation
All
Epoxy resin
Standard
All
IEC 61869
Overall Dimensions and Drawings
Sensor Sizes, EVT-D Series
Overall and mounting dimensions of EVT-XXD-XXX
The height of support voltage sensors can be changed upon customer request.
Component Drawings
Connection Diagram
Connection diagram with amplifier-converter, EVT-D-P
Technological Advantages
- Coreless DesignThe risk of ferromagnetic resonance and explosion is fundamentally eliminated1
- Wide Temperature RangeStable operation in the range of −40…+70°C2
- Easy IntegrationInstallation of voltage sensors instead of standard support insulators3
- Low Power ConsumptionExtremely low power consumption — close to zero4