BATLVFS and CTB2PH modules — thyristor LV capacitor banks with 7 % filters, 25–1200 kvar
Country: Spain · Model: BATLVFS / CTB2PH
BATLVFS thyristor capacitor banks with p = 7 % filters compensate 25–1200 kvar at 440 V where the load current jumps within fractions of a second. These are welding lines, presses, cranes, lifts and electric furnaces, and the CTB2PH modules from which such banks are built are also supplied separately.
- BATLVFS series
- 120 (25–120), 400 (150–400), 600 (375–600), 800 (575–800), 1000 (775–1000), 1200 (975–1200) kvar
- Voltage
- 440 V, 50–60 Hz
- Switching
- thyristor modules: switch-on at voltage zero, switch-off at current zero
- Controller
- MASTER Fast (MASTER12F)
Technical specifications
| BATLVFS series | 120 (25–120), 400 (150–400), 600 (375–600), 800 (575–800), 1000 (775–1000), 1200 (975–1200) kvar |
|---|---|
| Voltage | 440 V, 50–60 Hz |
| Switching | thyristor modules: switch-on at voltage zero, switch-off at current zero |
| Controller | MASTER Fast (MASTER12F) |
| Filter | p = 7 % (189 Hz), INA reactors |
| Capacitors | FMLF or POLB HD 7 % |
| CTB2PH | 12.5/25 kvar (36 A), 25/50 kvar (72 A), 40/80 kvar (115 A) at 230/400 V; 12 V DC control; IP00 |
| Enclosure | IP21, 900×650×1900 mm (BATLVFS400) |
| Standard | IEC 61921:2017 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The thyristors switch the capacitors on at the moment the voltage crosses zero and switch them off at zero current, so there are no current surges or switching overvoltages. A step contains FMLF or POLB HD 7 % capacitors and INA reactors tuned to 189 Hz for operation in networks with harmonics. The steps are commanded by the MASTER Fast controller with programs 1.1.1–1.9.9, and each step is protected by NH00 fuses. The floor-standing IP21 cabinet in RAL 7035 works at −25…+45 °C, complies with IEC 61921:2017 and optionally has an input switch and leakage protection. The CTB2PH module, made of a control unit and a power unit, switches phases L1 and L2, and L3 is connected directly. The control unit is supplied from 12 V DC, the fan from 230 V, and thermostats of 90 °C and 70 °C monitor overheating of the control unit and the fan. The module protection rating is IP00, so it is mounted inside a cabinet, a polycarbonate cover is optional, and the weight is about 4.5 kg.
How to choose
The range at 440 V includes the BATLVFS120 for 25–120 kvar, the BATLVFS400 for 150–400 kvar in a 900 × 650 × 1900 mm cabinet, the BATLVFS600 for 375–600 kvar, the BATLVFS800 for 575–800 kvar, the BATLVFS1000 for 775–1000 kvar from LVFS600 and LVFS400 cabinets, and the BATLVFS1200 for 975–1200 kvar. At 400 V the power is lower, so the BATLVFS4044300 gives 300 kvar at 440 V and 248 kvar at 400 V with steps of 50 + 50 + 2 × 100. If the load changes slowly, the contactor-based BATLVF is enough, and for phase balancing the SVG-L generator for 30–400 kVA is suitable.
Request a price and lead time
BATLVFS and CTB2PH modules — thyristor LV capacitor banks with 7 % filters, 25–1200 kvar. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How is thyristor switching of capacitors better than contactor switching?
The step switches on at voltage zero and off at current zero, so capacitor life is not spent on transients, and it can be switched at intervals of fractions of a second.
What versions does the CTB2PH thyristor module have?
The CTB2PH4025 switches 12.5/25 kvar at 230/400 V (36 A), the CTB2PH4050 25/50 kvar (72 A), and the CTB2PH4080 40/80 kvar (115 A). All are rated for 50/60 Hz.
Which controller do the CTB2PH modules work with?
Only with the special MASTER Fast controller (MASTER12F); an ordinary controller for contactor-based banks does not control a thyristor module.
Why does the CTB2PH module switch only two phases?
To de-energize a three-phase capacitor it is enough to break two phases, so the switches are in L1 and L2. Fewer thyristors mean lower losses and less module heating.
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