ELECTRICAL SAFETY EQUIPMENT AND PPE
Wega 1 / 1 V / 2 / 2 V / T1 / Rail built-in voltage detecting systems (VDIS) per IEC 62271-213
Country: Germany · Model: Wega 1 / 1 V / 2 / 2 V / T1 / Rail
Wega series built-in voltage detecting systems (VDIS) per IEC 62271-213:2021 are mounted in the front panel of a medium-voltage switchgear cell and show the presence of voltage on the cable connection phase by phase, with a threshold of 0.1–0.45 Un. The indicator takes its power from the signal of the cell's capacitive divider, so absence of voltage before work is determined from the front without a separate power source.
- Standard
- IEC 62271-213:2021, IEC 61243-5 (current monitoring in the indicator, no periodic tests)
- Nominal voltage
- from 1 kV (Wega T1: 1–52 kV)
- Frequency
- 50–60 Hz
- "Voltage present" indication threshold
- 0.1–0.45 Un (Wega Rail: 17–78 % Un)
Technical specifications
| Standard | IEC 62271-213:2021, IEC 61243-5 (current monitoring in the indicator, no periodic tests) |
|---|---|
| Nominal voltage | from 1 kV (Wega T1: 1–52 kV) |
| Frequency | 50–60 Hz |
| "Voltage present" indication threshold | 0.1–0.45 Un (Wega Rail: 17–78 % Un) |
| Interface | 3 LRM sockets (14 mm pitch) + earth socket; for Orion 3.1 / M1 |
| Wega 2 / 2 V | 2 independent relay contacts (remote signalling, interlocking) |
| Wega 1 V / 2 V | rotary switches for capacitance adjustment (2 V – up to 15 values) |
| Power supply | from the measuring signal, no external source |
| Housing | polycarbonate IP54, −40…+75 °C, depth 20 mm (Wega 2 – 48 mm) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The LCD distinguishes four states: "voltage present", "voltage present, built-in test passed", "signal too high" and "voltage absent" (below 0.1 Un). The second state confirms that the current through the indicator meets the monitoring requirements of IEC 61243-5 and IEC 62271-213, so periodic tests are not carried out. The "too high" signal points to a wrongly selected capacitor or an earth fault, overvoltage is also shown phase by phase, and the test button is used to test the indication in the de-energised state. The front panel has a full LRM interface with three sockets at a 14 mm pitch and an earth socket for phasing with Orion 3.1 or M1 instruments. An isolated output passes the voltage signal to the Sigma and ComPass directional short-circuit indicators. The indicator is installed without tools and connected with flat plugs or compact connectors, the electronics are potted in compound, and the IP54 housing works at −40…+75 °C.
How to choose
The version is chosen by whether relay outputs and capacitance adjustment are needed. The basic Wega 1 has a depth of 20 mm, and the Wega 1 V adds rotary switches on the rear for phase-by-phase capacitance adjustment. For remote signalling and interlocking the Wega 2 or 2 V with two independent relay contacts is used, and the 2 V offers up to 15 capacitance values. Insulated MV transformers with angled connectors are fitted with the Wega T1 or T1 vario for 1–52 kV, and traction substation switchgear with the single- and two-phase Wega Rail (1 R1, 1 R2, 2 R1, 2 R2) with a threshold of 17–78 % Un.
Request a price and lead time
Wega 1 / 1 V / 2 / 2 V / T1 / Rail built-in voltage detecting systems (VDIS) per IEC 62271-213. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Does the built-in Wega voltage indicator need periodic testing?
No. When the display shows "voltage present, built-in test passed", the current through the indicator already meets the monitoring requirements of IEC 61243-5.
At what voltage does Wega show the "voltage present" state?
From 0.1 to 0.45 Un, and below 0.1 Un the display shows "voltage absent". In Wega Rail systems the threshold is 17–78 % Un.
How is phasing carried out on a cell with a Wega indicator?
The Orion 3.1 or M1 phase comparators are connected to the LRM interface on the front panel, i.e. to the three sockets at a 14 mm pitch and the earth socket.
Can the Wega signal be passed to telecontrol?
Yes, the Wega 2 and Wega 2 V have two independent relay contacts. The Wega 2 housing is deeper, 48 mm against 20 mm for the Wega 1.
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