Reactor
An inductive device in power systems to limit current, absorb reactive power, or filter harmonics.
A reactor introduces inductance into a circuit. Types: shunt (absorbing capacitive reactive power on long lines), series (limiting fault current), filter (with capacitors for harmonic filtering), neutral grounding.
Air-core for high-current outdoor; iron-core for lower current/indoor. Specifications: voltage, current, inductance, Q factor.
Essential for PF correction and harmonic filtering.
QDTB manufactures reactor types including shunt for EHV, series for fault limiting, and filter for industrial harmonic mitigation.
Related Products
Related Terms
Impedance (%Z)
Total opposition to current flow in a transformer as a percentage, determining fault current and voltage regulation.
Harmonics
Integer multiples of fundamental frequency from non-linear loads, causing increased transformer losses and overheating.
Grounding Transformer
A transformer providing a neutral point for grounding in ungrounded or delta-connected systems.
More Terms Starting with “R”
Rectifier Transformer
A transformer designed to supply rectifier/inverter loads with enhanced harmonic and DC magnetization handling.
Voltage Regulation
The change in secondary voltage from no-load to full-load as a percentage, indicating voltage stability.
Rated Capacity
The maximum continuous power output a transformer can deliver at specified conditions without exceeding temperature limits.
Ring Main Unit (RMU)
A compact factory-assembled HV switchgear set for ring-type or radial distribution networks.
More in “Transformer Types”
Autotransformer
A transformer with a single winding acting as both primary and secondary, providing voltage conversion through electromagnetic induction and direct electrical connection.
Amorphous Alloy Transformer
A distribution transformer using amorphous metal core material achieving 60-70% lower no-load losses than conventional silicon steel cores.
Box-Type Substation (Prefabricated)
A factory-assembled compact substation integrating transformer, HV/LV switchgear, and protection in a weatherproof enclosure.
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