AAR/100 / AAR/600 / AAR/6 / AAR/138 / AAR/D20 anti-resonance 0.4 kV compensation banks with reactors
Country: Italy · Model: AAR/100 / AAR/600 / AAR/6 / AAR/138 / AAR/D20
AAR series automatic compensation banks for 0.4 kV networks, with a blocking reactor in every step, work at current THD of up to 100 % in metallurgical and petrochemical plants, with VFD drives, in data centres and in shopping centres. The power is from 25 to over 900 kvar, the reactors are tuned to 189 Hz (p = 7 %), and in the AAR/138 to 138 Hz (p = 14 %).
- Network voltage
- 400 V (others to order)
- Reactor tuning
- 189 Hz (p = 7 %); AAR/138 — 138 Hz (p = 14 %)
- Permissible distortion
- THD(I) up to 100 %; THD(U): AAR/100 — 3 %, AAR/600 and AAR/138 — 6 %, AAR/6 — 10 %, AAR/D20 — 20 %
- Capacitors
- 500/550 V (AAR/100, AAR/600); 550/600 V (AAR/6, AAR/138, AAR/D20), Heavy Duty
Technical specifications
| Network voltage | 400 V (others to order) |
|---|---|
| Reactor tuning | 189 Hz (p = 7 %); AAR/138 — 138 Hz (p = 14 %) |
| Permissible distortion | THD(I) up to 100 %; THD(U): AAR/100 — 3 %, AAR/600 and AAR/138 — 6 %, AAR/6 — 10 %, AAR/D20 — 20 % |
| Capacitors | 500/550 V (AAR/100, AAR/600); 550/600 V (AAR/6, AAR/138, AAR/D20), Heavy Duty |
| Power | 25 kvar … over 900 kvar |
| Controller | BMR4 / HPR6 / HPR12 |
| Monitoring | CCS (standard on AAR/6, AAR/D20) |
| Standards | IEC/EN 61439-1/2, IEC/EN 61921 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
A series reactor shifts the circuit resonance below the main harmonics, so the capacitors are not overloaded and the harmonic level in the network is partly reduced. The AAR/100 with 500/550 V capacitors in G4E…G8E enclosures is intended for voltage THD of up to 3 % where there is a risk of L-C resonance. The AAR/600 holds THD(U) up to 6 % in continuous operation, with asynchronous generators, mills and injection moulding machines, and starts from 50 kvar. The AAR/6 from 100 kvar with Heavy Duty 550/600 V capacitors works at THD(U) up to 10 %, outside EN 50160, in wire drawing, in the chemical, pharmaceutical and oil industries. The AAR/D20 withstands up to 20 % in foundries with induction and arc furnaces, and the AAR/138 is designed for a pronounced 3rd harmonic of 150 Hz. The reactors have a cold-rolled steel core, aluminium windings under resin, average losses of 6 W/kvar and a temperature sensor, and the Heavy Duty MKP capacitors are wound from thickened film. The RAL 7035 cabinets with IP31 protection have withdrawable steps, an interlocked isolator, NH-00 100 kA fuses, AC6-b contactors and forced ventilation.
How to choose
The series is chosen by the voltage THD measured at the connection point. Up to 3 % the AAR/100 is enough, up to 6 % the AAR/600 is needed, up to 10 % the AAR/6, and up to 20 % only the AAR/D20. The steps are controlled by a BMR4, HPR6 or HPR12, CCS monitoring is included as standard on the AAR/6 and AAR/D20, and on the other series it is ordered separately. For targeted sinking of the 5th and 7th harmonics, the passive FA05 and FAM05/07 filters for 245 and 345 Hz are more suitable.
Request a price and lead time
AAR/100 / AAR/600 / AAR/6 / AAR/138 / AAR/D20 anti-resonance 0.4 kV compensation banks with reactors. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the AAR anti-resonance bank protected against?
The bank switches off on high THDi or THDu, loss of step capacitance, minimum or maximum voltage and overheating above 50 °C.
Why is the reactor of an anti-resonance bank tuned to 189 Hz?
At 189 Hz (p = 7 %) the resonance lies below the main harmonics, so the capacitors do not fall into it and are not overloaded.
Can an AAR bank be ordered for a network voltage other than 400 V?
Yes, the standard version is designed for 400 V, and other network voltages are made to order.
Which standards do the AAR banks comply with?
The cabinets are made to IEC/EN 61439-1/2 and IEC/EN 61921, and the capacitors to IEC/EN 60831-1/2 with the IMQ certificate V1927.
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Need a price, lead time or replacement?
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