computer SMART III (Fast), computer C Wi-Fi, Computer PV12 reactive power controllers
Country: Spain · Model: computer SMART III / SMART III Fast / C6 / C12 Wi-Fi / PV12
Reactive power controllers of the computer series with 6 or 12 stages control capacitor banks to a target cos φ. SMART III measures current with one or three CTs, is powered from 100–520 V, and the Fast version is designed for loads that change within 40 ms–4 s. Computer PV12 is for solar power plants, and C6/C12 Wi-Fi for simple symmetrical installations.
- computer SMART III / Fast
- 6 or 12 stages; supply 100–520 V; measurement with 1 or 3 CTs (…/5 or …/1 A); leakage current monitoring 10 mA–1.5 A; up to 4 target cos φ; Fast — loads changing within 40 ms–4 s
- SMART III: accuracy
- U, I 0.5 %; P 0.5 %; Q 1 %; energy class 1 (IEC 61557-12)
- SMART III: outputs
- 6 opto-MOSFET (static EMF/) or relay; 2 relays (fan, alarm); RS-485 Modbus RTU; IP51 front; 144×144 mm
- computer C6/C12 Wi-Fi
- 6/12 stages + alarm; 400 V; …/5 A; up to 27 parameters; up to 12 alarms; Wi-Fi
Technical specifications
| computer SMART III / Fast | 6 or 12 stages; supply 100–520 V; measurement with 1 or 3 CTs (…/5 or …/1 A); leakage current monitoring 10 mA–1.5 A; up to 4 target cos φ; Fast — loads changing within 40 ms–4 s |
|---|---|
| SMART III: accuracy | U, I 0.5 %; P 0.5 %; Q 1 %; energy class 1 (IEC 61557-12) |
| SMART III: outputs | 6 opto-MOSFET (static EMF/) or relay; 2 relays (fan, alarm); RS-485 Modbus RTU; IP51 front; 144×144 mm |
| computer C6/C12 Wi-Fi | 6/12 stages + alarm; 400 V; …/5 A; up to 27 parameters; up to 12 alarms; Wi-Fi |
| Computer PV12 | 12 stages for solar power plants: summation of up to 3 sources, 4 U inputs, 3 I inputs + leakage current |
| SmartLink-VAR | RS-485 → Ethernet/Wi-Fi gateway for the mycircutor.com (VAR) service |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
SMART III Fast 12 has 12 stages and measures 20–300 V phase-to-neutral and 35–520 V phase-to-phase, with current …/5 or …/1 A (1–120 % In). The accuracy of voltage, current and active power is 0.5 %, of reactive power 1 %, energy metering is class 1 per IEC 61557-12, and leakage current is measured in the range 0.01–1.5 A. There are six outputs, transistor opto-MOSFET for static switches EMF/, plus 2 relays (fan and alarm), 2 digital inputs and RS-485 Modbus RTU. The case is 144 × 144 × 71 mm, IP51 at the front, with up to 4 target cos φ for different tariff periods. C6/C12 Wi-Fi is powered from 400 V ±10 %, works with CTs …/5 A (0.05–5 A), shows up to 27 parameters and keeps up to 12 alarms, with U and I accuracy of 1 %. Computer PV12 has 4 voltage inputs, 3 current inputs and a leakage current input, and sums up to 3 sources. The SmartLink-VAR gateway sends data to the remote monitoring service via Ethernet/Wi-Fi.
How to choose
The type of controller is determined by the nature of the load. For a symmetrical installation with slow changes, C6 or C12 Wi-Fi is enough. If a network analyzer and one or three CTs are needed, SMART III is used, and for fast changes from 40 ms, as with cranes and welding, its Fast version with static switches. Computer PV12 is intended for a site with a solar power plant. The stages themselves are selected by power, for example from SVGm or fixed capacitors CPA, CCF.
Request a price and lead time
computer SMART III (Fast), computer C Wi-Fi, Computer PV12 reactive power controllers. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How many stages do computer controllers support?
SMART III has 6 or 12 stages, C6 and C12 Wi-Fi 6 or 12 plus an alarm relay, and Computer PV12 has 12 stages.
What is the measurement accuracy of SMART III?
Voltage and current 0.5 %, active power 0.5 %, reactive power 1 %, energy metering class 1 per IEC 61557-12.
How does the Fast version differ from the regular one?
Fast controls the static switches EMF/ through opto-MOSFET outputs and suits loads that change within 40 ms–4 s.
What are the dimensions and protection class of SMART III?
The case is 144 × 144 × 71 mm, IP51 at the front. Communication is via RS-485 Modbus RTU.
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