ABB R Low-Voltage Reactors

Detuned compensation duty

ABB’s power-quality catalogue identifies R low-voltage reactors for series connection with power-factor correction capacitors. The documented role includes limiting switching inrush and reducing harmful harmonic amplification/resonance in a correctly designed capacitor installation. They are not generic line reactors for every drive application.

The original 18 references include R7% and R14% descriptions and single-phase/three-phase arrangements. In the cited catalogue, the percentage denotes the reactor-to-capacitor fundamental-frequency impedance ratio, rather than an efficiency or current rating. Select the complete capacitor/reactor combination from the applicable documentation.

Capacitor and reactor selection

Net bank output and the capacitor unit’s nameplate kvar are different quantities. The capacitor voltage rating in a detuned circuit also needs verification. A reactor should not be chosen simply by matching a kvar number or assuming one detuning percentage suits every harmonic spectrum.

• Provide network voltage, frequency, phase arrangement and compensation step/net output requirement.
• Provide harmonic measurements and nonlinear-load information for the system design.
• Confirm detuning requirement, capacitor voltage/kvar, reactor current/inductance and the coordinated combination.
• Check losses, ambient temperature, ventilation, thermal protection, terminals and mounting clearances for the exact unit.

Historical references and quotation

The existing model and Vendor Code data are retained. The 2015 ABB catalogue is a technical reference, not proof of current availability or status. Other names in the existing overview should be verified against complete ABB documentation before ordering; no unverified rating or replacement relationship is assigned to them.

Send the full reference and code, nameplate photos, quantity and destination, network conditions, capacitor-bank details and requested detuning. Product status and current availability should be confirmed before ordering.

Browse Power Quality, CLMD capacitor references or Contact. Official basis: ABB Power Quality catalogue 1SXF320002C2001, section 3. The original download below is retained.