VOIS+ / VOIS R+ built-in voltage indicators for switchgear 1–52 kV
Country: Germany · Model: VOIS+ / VOIS R+
VOIS+ and VOIS R+ built-in voltage indicators show the presence of three-phase voltage in switchgear bays of class 1–52 kV per IEC 62271-213:2021 and IEC 61243-5. The device in a 48 × 96 × 37 mm panel-mount enclosure replaces portable plug-in indicators.
- Voltage class
- 1–52 kV
- Standards
- IEC 61243-5, IEC 62271-213
- Interface
- LRM, three-phase measuring point
- Matching capacitance C2m
- 100 pF … 150 000 pF (depending on the version)
Technical specifications
| Voltage class | 1–52 kV |
|---|---|
| Standards | IEC 61243-5, IEC 62271-213 |
| Interface | LRM, three-phase measuring point |
| Matching capacitance C2m | 100 pF … 150 000 pF (depending on the version) |
| Relay (VOIS R+) | 1 changeover contact voltage present / absent, time ≤ 1 s; supply 24–230 V AC/DC, 1 W |
| Enclosure | 48 × 96 × 37 mm (DIN 43700), IP54 |
| Temperature | −25 … +55 °C, storage −30 … +80 °C |
| Indication power supply | without battery and auxiliary power |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The indication works without a battery and auxiliary power, taking energy from the capacitive divider of the bay. The three-phase LR measuring point is used for phase comparison and checking the field rotation direction with the CAP-Phase tester. VOIS performs only basic indication, without monitoring of the divider insulation and without smart grid functions, so it is installed in standard bays with simple requirements. VOIS+ provides indication, and VOIS R+ additionally has a relay output, one changeover contact voltage present / absent with a response time of up to 1 s. The relay is powered from 24–230 V AC/DC, the consumption is 1 W, and the control line is connected by a plug. The matching capacitance C2m lies in the range from 100 pF to 150 000 pF, and there are versions with or without a grounding wire, with 4.8 × 0.8 mm flat terminals or a system connector. The DIN 43700 enclosure has protection degree IP54, operating temperature −25…+55 °C, storage −30…+80 °C and frequency 50/60 Hz. When ordering, the primary capacitance C1 of the coupling electrode and the rated voltage UN are specified.
How to choose
First find out the capacitance C1 of the coupling electrode and the rated voltage UN of the bay, and the version with the required C2m is selected from them. If only a visual display is needed, take VOIS+, and for transmitting the voltage present / absent state to an interlocking or telecontrol system VOIS R+. When an LCD display with three voltage level steps and two changeover contacts are needed, look at CAPDIS-S1+ or CAPDIS-S2+, and for protection and partial discharge detection CAPDIS-S1_55 and CAPDIS-S2_55.
Request a price and lead time
VOIS+ / VOIS R+ built-in voltage indicators for switchgear 1–52 kV. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
For which voltage class are VOIS+ and VOIS R+ intended?
For medium-voltage switchgear of 1–52 kV per IEC 62271-213 and IEC 61243-5.
Is a power supply needed for voltage indication?
No, the indication works without a battery and auxiliary power from the capacitive divider. A voltage of 24–230 V AC/DC is applied to the VOIS R+ relay.
How does VOIS R+ differ from VOIS+?
VOIS R+ has a relay output, one changeover contact of the voltage present / absent state with a response time of not more than 1 s.
What are the dimensions and degree of protection of the device?
A panel-mount enclosure of 48 × 96 × 37 mm per DIN 43700, protection degree IP54, operating temperature −25…+55 °C.
Which matching capacitance C2m is available?
From 100 pF to 150 000 pF depending on the version. It is selected for the capacitive divider of the bay.
Similar products
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.