multiwave active significantly increases operational safety
The loads in industrial networks are increasingly dominated by a large number of small and large converters. In this context, two effects can be observed. Due to the falling number of motors operated directly on the grid, the need for inductive fundamental reactive power is decreasing. At the same time, harmonic currents are increased. The impedance of the network transformer plays a decisive role. A large part of the harmonic voltage is created here, leading to faults in all consumers. This results in unreliable operation of the devices and an increased number of malfunctions.
KBR offers active harmonics filters as a solution. The multiwave active eliminates harmonics up to the 50th harmonic. The filter improves voltage quality, significantly increasing operational safety.
The benefits are astonishing. It is almost impossible to put into figures what can be saved through reduced equipment wear, fewer error corrections, or even production stoppages that are prevented before they happen. Studies show that billions are lost every year as a result of polluted energy networks.
multiwave active is therefore an investment in internal operational safety.
A filter system should be designed for the individual use case. Our “Power Quality Service” department is specialized in this task and happy to assist you with your project.
Highlights
- Harmonic compensation up to the 50th harmonic
- Easy expansion thanks to modular system
- Current- or voltage-regulated control
- Automatically adapts to changing conditions in operation
- Reactive power compensation, phase-selective, inductive, and capacitive
- Load balancing, compensation for phase shifts
- Robust, reliably, and with higher temperature range up to 50°C without derating
- Harmonic filtering, selective in percentage or limits from the standard
multiwave active
The right product for every requirement
Even the smallest version of multiwave active ensures safe compensation of harmonics up to the 50th harmonic as well as reactive power. Small dimensions and low weight allow easy and space-saving installation in any environment: both wall and control cabinet mounting up to protection class IP54 are possible. With a power dissipation of only < 970 W, this design is extremely economical. The response time of << 1ms also makes it possible to optimally compensate for dynamic loads.
| Mechanical design | ||||
|---|---|---|---|---|
| Module | Wall cabinet | Free standing cabinet | LCD-Display | |
|
multiwave active 60 A (3-/4-wire) |
1 | Yes | Yes | Yes |
| multiwave active 120 A (3-/4-wire) | 2 | Yes | Yes | Yes |
| multiwave active 180 A (3-/4-wire) | 3 | — | Yes | Yes |
| multiwave active 240 A (3-/4-wire) | 4 | — | Yes | Yes |
| multiwave active 300 A (3-/4-wire) | 5 | — | Yes | Yes |
Technical data
| General technical data | |||||
|---|---|---|---|---|---|
| Rated voltage AC | 400 V (max. 415 V) ±10% | ||||
| Network frequency | 50 / 60 Hz | ||||
| Peak current | 2x rated current | ||||
| Cable connection | 3-phase + PE + N/PEN, neutral conductor connection is required (Network configuration: TN) | ||||
| Compensation | 3-wire operation: External conductor, symmetrical and asymmetrical (positive and negative sequence network) 4-wire operation: also has neutral conductor (positive, negative, and zero sequence network) |
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| Compensation | 1st – 51st harmonic (50 Hz) // 1st – 41st harmonic (60 Hz) // 1st – 51st harmonic (50 Hz) // 1st – 41st Harmonic (60 Hz) All harmonics can be filtered at the same time |
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| Additional functions | - Dynamic reactive power compensation - Active and reactive power balancing (negative sequence network up to 60%, zero sequence network up to 30% rated current) - Voltage stabilization through Q(U) control - Flicker compensation - Neutral conductor load reduction |
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| Operating voltage AC | 400 V | ||||
| Power dissipation | < 2.6% of compensation power maximum, < 2.6% of compensation power maximum, < 2.3% in typical operating, < 0.7% in idle speed, < 100 W in standby | ||||
| Switching frequency | 20 kHz (low-loss version) | ||||
| Controls | Internal control computer with two digital signal processors | ||||
| Device setup and display | Via internal web servers (TCP/IP) and PC, SD card, or Anybus interface (field bus interface) | ||||
| Response time | << 1ms | ||||
| Interfaces | - Ethernet (TCP/IP) - Various field bus systems via Optional Anybus plug-in module (e.g. Profinet, Modbus TCP) - 4x digital outputs: 250 VAC (3 A) / 110 VDC (0.7 A) / 24 VDC (1 A), potential and configurable - 4x digital inputs: 24 VDC (10 mA), configurable for remote control and easy additional parameter adjustment |
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| Current transformers | 3-phase current measurement, xx/5 A or xx/1 A (configurable) The required current transformers are not included, 15 VA, class 1 or better recommended |
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| Inverters | 3-level IGBT with intermediate voltage circuit (electrolytic capacitors) | ||||
| Ambient conditions |
- Maximum ambient temperature without reduced performance: 40°C |
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| Overvoltage category | CAT III, 300 V | ||||
| EMC class | Standard: EN 55011, class A1 (industrial environment), optional: Class B (residential area) | ||||
| Standards | EN 50178, EN 61439-1, EN 61439-2, EN 61-6-2, EN 61000-6-4, EN 55011 | ||||
Wall- or standing cabinet
| Technical data wall cabinet / free standing cabinet | |||||
|---|---|---|---|---|---|
| Dimensions | 800 x 600 x 1200 mm + 100 mm ceiling ventilation (WxDxH) | ||||
| External conductor rated currentr | 60 A | 120 A | |||
| Rated current neutral conductor | 180 A | 360 A | |||
| Weight | 132 kg | 176 kg | |||
| Power dissipation during derating | <1300 W | <2400 W | |||
| Power dissipation under typical operating conditions | <966 W | <1932 W | |||
| Assembly | Wall mounting or standing cabinet
|
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| Ambient temperature | 0 ... 50°C at full power, up to 55°C without derating | ||||
| Protection type | IP 20 or optional IP 54 | ||||
| Noise level | < 56 to 63 db A (depending on the load situation) | ||||
| Recommended fuse | 200 A type gL or gG | ||||
Wall cabinet
| Technical data wall cabinet | |||||
|---|---|---|---|---|---|
| Dimensions | 800 x 400 x 1200 mm (WxDxH) | ||||
| External conductor rated currentr | 60 A | ||||
| Rated current neutral conductor | 180 A | ||||
| Weight | 114 kg | ||||
| Power dissipation during derating | <1300 W | ||||
| Power dissipation under typical operating conditions | <966 W | ||||
| Assembly | Wall mounting
|
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| Ambient temperature | 0 ... 50°C at full power, up to 55°C without derating | ||||
| Protection type | IP 20 or optional IP 54 | ||||
| Noise level | < 56 to 63 db A (depending on the load situation) | ||||
| Recommended fuse | 200 A type gL or gG | ||||
Standing cabinet
| Technical data free standing cabinet | |||||
|---|---|---|---|---|---|
| Dimensions | 800 x 600 x 2000 mm+ 2000 mm + 100 mm base + 100 mm ceiling ventilation (WxDxH) | ||||
| External conductor rated current | 60 A | 120 A | 180 A | 240 A | 300 A |
| Rated current neutral conductor | 180 A | 360 A | 540 A | 720 A | 900 A |
| Weight | 225 kg | 285 kg | 345 kg | 405 kg | 465 kg |
| Power dissipation under typical operating conditions | < 966 W | < 1932 W | < 2898 W | < 3864 W | < 4830 W |
| Assembly | Free standing cabinet | ||||
| Ambient temperature | 0 ... 40 °C at full power, up to 50 °C without derating | ||||
| Protection type |
IP 31 or optional IP 54 |
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| Noise level | < 75 db A (depending on the load situation) | ||||
| Recommended fuse | 400 A type gL or gG | ||||
