Active harmonic filtering in industrial installations.
AccuSine PCS+ is a flexible, high performance, cost-effective solution for stabilizing electrical networks by providing harmonic mitigation, power factor correction and load balancing.
- A complete solution for harmonic filtering that meets every harmonic standard around the world.
- Can be operated as a displacement power factor correction and load balancing device independent of or in conjunction with harmonic mitigation.
Standard RMS output current ratings
- 60 A, 120 A, 200 A, 300 A - 380 V AC to 480 V AC
- 47 A, 94 A, 157 A, 235 A - 480-600 V AC
- 40 A, 80 A, 133 A , 200 A - 600-690 V AC
- 380-480 V AC; +10%/-15%
- 480-600 V AC; +10%/-15%
- 600-690 V AC; +10%/-15%
Up to 15kV with custom transformers
- 50/60 Hz, ±3 Hz auto sensing
Number of phases
- 3-phase, with or without neutral
- 2nd to 51st, discrete; fully selectable per harmonic order (amplitude and on/off)
- Closed Loop: < 3 % THD(i); max 20:1 THD(i) reduction with load harmonic current above 50 % of AccuSine PCS+ rating
- Open Loop: < 5 % TDD
- Requires 3 % or higher inductive impedance per nonlinear load
Power factor correction
- Optimized unity PF, Leading (capacitive) or lagging (inductive) power factor (Cos φ) to target
Mains current balancing
- Negative sequence current injected to balance fundamental current on the mains due to load imbalance (inherently corrects displacement PF (Cos φ))
Control response time
- 25 μs
Harmonic correction time
- 2 cycles
Reactive correction time
- 1/4 cycle
- 60 A, 120 A & 200 A: IP00, IP20, UL Type Open, & UL Type 1 configurations -0 °C to 45 °C
- All others 0 °C to 40 °C
- Derate 2 % per degree °C to 50 °C
- to 95 %, noncondensing
- 1000 m (derate 1 %/100 m above), max 4800 m
Standards compliance/ certification
- cULus (UL508 , CSA 22.2 No. 14)
- CE Certified, ABS, Lloyds, other local standards
- 144 mm QVGA TFT 64k-color touchscreen
Flexible and scalable:
- All types of harmonic producing loads
- Single load, bus or global site filtering
- Compatible with future load changes
- Easy sizing and independent of system impedance
- Simple selection online tool
- Simple installation and ease of expansion
- Flexible parallel operation modes for multi-unit installations
- Current transformers can be installed on the incoming mains (source sense) or on the feeders to the loads (load sense) for maximum installation flexibility
- Peace of mind:
- Achieves compliance with any harmonic standard anywhere around the world when sized correctly
- Compatible with generator sources - off loads generators of reactive and harmonic current demands to extend life and ensure proper operation of generators
- Compatible with UPS sources: relieves UPS of reactive and harmonic current demands to ensure proper operation of UPS
- Ensures energy efficiency by optimising transformer and cable capacities; reduces utility power factor penalties; and saves the cost of generation and transmission of reactive and harmonic current (non active currents)
- Maximises up time when used for harmonic and/or power factor correction.
- Anywhere nonlinear loads are present: water/wastewater facilities, HVAC systems, oil & gas platforms, petrochemical plants, port cranes, mining, pharmaceuticals, pulp & paper, automotive plants, all-electric ships, wind mill and solar farms, steel mills, plastic extrusion plants, and more.
- Stop voltage sags and flicker due to load current fluctuations (VAR compensation): Ball mills, shredders, arc welders, arc furnaces, hard to start AC motors, and more.
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