Steroguard three-phase electrodynamic line conditioners
Country: Italy · Model: Steroguard
The Steroguard three-phase electrodynamic line conditioner runs on a 3 phases + N, 230/400 V supply and holds the output voltage within ±1 % (true RMS). Besides stabilization, it isolates the load from the mains galvanically and absorbs impulse overvoltages. It is used in printing, communications and industry.
- Supply
- 3 phases + N, 230/400 V
- Accuracy
- ±1 % (true RMS)
- Response time
- 6–40 ms/V
- Overload
- 10× 10 ms, 5× 6 s, 2× 60 s
Technical specifications
| Supply | 3 phases + N, 230/400 V |
|---|---|
| Accuracy | ±1 % (true RMS) |
| Response time | 6–40 ms/V |
| Overload | 10× 10 ms, 5× 6 s, 2× 60 s |
| Surge protection | SPD type 2, In 40 (60) kA |
| Winding insulation | > 3000 V 1 min, with electrostatic shield |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The unit combines three functions, namely voltage stabilization, galvanic isolation and protection against impulse overvoltages. Response time is given in milliseconds per volt of deviation and is 6–40 ms/V. Overload capability is split into three steps, 10× for 10 ms, 5× for 6 s and 2× for 60 s. Short inrushes fall into the first step and long-term load into the last, so power is chosen by steady current. Impulse overvoltages are discharged by a type 2 SPD with In 40 (60) kA. The windings are insulated for more than 3000 V for 1 min and carry an electrostatic shield. The conditioner connects to a four-wire 3 phases + N, 230/400 V network.
How to choose
Three things drive the choice, namely a 3 phases + N, 230/400 V network, the required ±1 % accuracy and the need for galvanic isolation with a type 2 SPD. The available data do not state the power rating of Steroguard, so the size is agreed with the manager from the continuous load. If isolation and impulse protection are not needed and the task is plain stabilization, look at Ministab / Sterostab Y for 3–8000 kVA or Ministab / Sterostab T for 3.5–800 kVA. For a single-phase load up to 350 kVA there is Ministab / Sterostab M.
Request a price and lead time
Steroguard three-phase electrodynamic line conditioners. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How does a line conditioner differ from a voltage stabilizer?
In a conditioner, stabilization is complemented by galvanic isolation and protection against impulse overvoltages. In the Steroguard all three functions are combined in one unit.
How accurately does the Steroguard hold the output voltage?
Accuracy is ±1 % by true RMS and the response time is 6–40 ms/V. True RMS measurement keeps a distorted waveform from upsetting the regulation.
Which network does the Steroguard connect to?
To a three-phase four-wire network, 3 phases + N, 230/400 V.
What impulse overvoltage protection does the Steroguard have?
A built-in type 2 SPD with In 40 (60) kA. The windings also have an electrostatic shield and insulation for more than 3000 V for 1 min.
What overloads can the Steroguard withstand?
10× for 10 ms, 5× for 6 s and 2× for 60 s.
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