PI-CKSG series tuned reactor

The PI-CKSG series reactors are indispensable key components in reactive power compensation devices. It is connected in series in the capacitor circuit to suppress harmonic amplification and dampen parallel resonance, ensuring the stable operation of capacitors and the power grid.

Execution standard :GB/T 1094.6-2011 Reactors.

Duct structure, low temperature rise, low loss, high harmonic resistance, high linearity to avoid magnetic saturation, low noise operation, easy installation, environmental protection features, long service life, with temperature protection.

Reactors are divided into two types: three-phase three-column and three-phase five-column. Both are dry-type with iron cores. Among them, the three-phase three-column is equipped with a full common compensation capacitor, while the three-phase five-column can be equipped with phase-by-phase compensation capacitors.

The core is made of high-quality, low-loss cold-rolled oriented silicon steel sheets. The core column is divided into uniform small sections by multiple air gaps. The air gaps are separated by epoxy-coated glass cloth plates to ensure that the air gaps of the reactor do not change during operation.

The coil is wound with H-class enameled wire, closely and evenly arranged, with no insulation layer on the surface. It has excellent aesthetic appeal and good heat dissipation performance.

After the coil and core of the reactor are assembled into one unit, they go through the process of pre-baking - vacuum impregnation - hot baking curing. H-grade impregnating varnish is used to firmly bond the coil and core of the reactor together. This not only greatly reduces the noise during operation, but also has an extremely high heat resistance grade, ensuring that the reactor can operate safely and noiselessly even at high temperatures.

The fasteners of the reactor core column part are made of non-magnetic materials to ensure that the reactor has a high quality factor and a low temperature rise, and to ensure a good filtering effect.

The lead-out wires adopt the cold-pressing process of terminals, ensuring reliable wiring.

Compared with similar domestic products, this reactor has the characteristics of small volume, light weight and beautiful appearance.

Note that the voltage Uc of the capacitor increases after the reactor is connected in series.

Uc=Uo/(1 - P) : Uo: System voltage, P: reactor reactance rate.

• Electrical Characteristics

The linearity of the reactor L > 0.95, and can reach 1lin=1.2*(11+13+15+17……)

If the line voltage harmonic content defined by the ENV 61000—2—2 standard is taken as the reference rule for the reactor, then U3=0.5%; U5=6%; U7=5%, U11=3.5%; U13=3%. If necessary, non-standard reactors will be developed, such as different Un, fn, Qc, P% values and harmonic content higher than the standard definition.

• Selection of Tuning (Detuning) Harmonic Order

The tuning harmonic fr depends on the resonant frequency of the L—C series circuit, fr=1/2Π√(lc), where n is the harmonic order. For example, in a 50Hz power grid, n=fr/50, commonly used are 7% (5-7th order), 14% (3rd order). Fr must ensure that the harmonic current frequency range is outside the resonant frequency and at the same time ensure that there is no interference from other control frequencies.

• Selection of Installation and Ventilation Times

Installation of Tuned Reactors

a) In a separate cabinet

b) In the cabinet with the capacitor bank, it is recommended to install it in a separate compartment as much as possible or install it above the capacitor bank. The part of the cabinet where the capacitor bank is installed must consider ventilation.

Installation method: 2×25Kvar + 4×50Kvar

★Tuned reactor part: Forced ventilation Ps-2×200 + 4×320=1680W F=0.3×Ps=0.3×1680=504m³/h

★Capacitor bank part: Forced ventilation (cabinet: 800×1000×2200) Ventilation volume: 0.75×250=187.5m³/h

Transportation and storage
When transporting the reactor, it should be packed in the original factory packaging as much as possible. If this cannot be achieved, the reactors must be placed in sturdy wooden or corrugated cardboard boxes, and soft materials should be lined between the reactors and between the reactors and the inner walls of the boxes to prevent them from colliding with each other.
When handling reactors, it is strictly forbidden for the insulator part and the shell wall part to be subjected to force impact, and they should be handled with care. Reactors should be stored in a dry room free of corrosive gases, and any heat sources should be prevented from radiating to the reactors. This point should also be noted for reactors after their packaging has been removed.
During transportation and storage, reactors should always be placed upright with insulators facing upwards. It is not allowed to stack reactors on top of each other without any support.
User acceptance
After receiving the reactor, the user should first check whether the model specification and parameters on the nameplate are consistent with the purchased product. At the same time, check whether the appearance quality of the reactor, accessories, certificates of conformity, etc. are complete.
The user shall conduct the withstand voltage acceptance inspection of the reactor in accordance with the standard of 75% of the factory test voltage. The withstand voltage time is 10 seconds, and the inspection quantity shall be negotiated by both the supplier and the buyer.
"Run
All wiring must be completely firm and should be inspected regularly every six months. Meanwhile, the cross-sectional area of the wiring must be sufficient.
Temperature protection must ensure reliable connection to play a protective role.