They are used in electrical
systems as filters or to limit short circuits to safe
value, in this application they are called Current Limiting
Reactors.
Placed on SCR Drives or Inverters absorb electrical noise
created by the drive such as notching, pulse distortion
and harmonics they are bi-directional protective filtering
devices which solve many problems associated with electrical
power conversion equipment.
Most VFD manufacturer incorporate a DC Link Choke ahead
of the DC bus capacitors, in the ripple filter circuit,
this limits the rate of change of line current relative
to time (di/dt) into the capacitors. This result in lower
peak currents by 40% to 60%, or substitute by three phase
input reactor typical values are 3% or 5% of line impedance.
UL Recognized Insulation System DV-220, UR labeled
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DC link choke, one per line
or in differential mode Interphase reactor for 12-pulse
DC rectifier filter
Input line reactor: could be 1 or 3 phase
Non-saturating air-core reactors
Temperature Rise: 150 standard, optional: 80°C or 115°C
Higher than standards BIL rating
Open core and coil, special OEM terminals location
Ventilated enclosure, indoor or outdoor.
Totally enclosed non-ventilated.
Operating Frequency: 50, 60, 400 or special.
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| 5 PIECES:
520uH, 600 AMPS, AC FILTER FOR ROTARY UPS |
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WELDING
TRANSFORMER
116 KVA, 480 - 5.8 TO 11.6 V |
AIR-CORE
REACTOR
360 µH, 100 AMPS |
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DIFFERENTIAL
DC REACTOR
1700 µH, 250 AMPS |
3 PHASE
LINE REACTOR
355 µH, 110 AMPS |
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400
HZ INV OUTPUT FILTER
(3) 72 µH, 260 AMPS |
DC CHOKE,
INTERPHASE
3.0 mH, 75 AMPS |
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| DC MAGNET
COIL REPAIR, 68A, 230V DC, 2.7 H, WT = 6000 LBS. |
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