Axpert-i-Sine Series Active Harmonic Filter
“True Harmonics Solution”
High harmonics escalate complications which affect all power distribution networks in industrial, commercial, telecom and medical applications.
Most of the power converting equipments or facilities can generate harmonic current. Axpert-i-Sine Series Multi-Functional Active Harmonic Filters are designed with intelligent control algorithm which dynamically adjust the switching frequency to optimize the performance and efficiency.
The performance of Axpert-i-Sine Series AHF is less affected by supply voltage harmonic distortion and it provides selective harmonic attenuation up to 51st order.
Amtech offers both 3-phase, 3-wire as well as 3-phase, 4-wire Active Harmonic Filters. Whenever there are single phase non-linear loads like computers, there is an accumulation of triplen harmonic current in neutral. Our 3-phase, 4-wire Active Harmonic Filters are the best choice for such applications.
RANGE: 24…240 A (Above this connect in parallel)
VOLTAGE: 480 V, 600 V, 3-Phase, 3-Wire 60 Hz
Overview
Specification
Model & Rating
Dimension & Weight
Install & Wiring
Applications
Download
Features:
- Fast Fourier transform based harmonic compensation
- Operates with closed loop control
- Ability of parallel operation to increase power capacity
- Inherent current limittng
- Harmonics attenuation up to 97% at rated current.
- Harmonics compensation with and without PF compensation.
- Voltage-independent harmonic current tracking.
- Backlit user interface(optional TFT with touch screen)
- Modbus RTU communication compatible.
- Advanced programmable digital I/O interface.
- Intelligent control algorithm which dynamically changes the switching frequency to optimize the performance.
Advantages:
- Prevents possible harmonic resonance.
- Optimum utilization of power capacity.
- Adaptive to increase in harmonics current due to additional loads being added
- Overload condition is prevented
- Best accuracy. Does not require detailed network analysis
- More immunity to input voltage distortion.
- Easy maintenance
- User- friendly operation.
- Facilitates networking ability.
- Selective harmonics elimination by digital programming.
- Minimum insertion loss resulting in efficient operation.
| Power Rating | Mains supply voltage | -5: 440…480 VAC, 3-Phase, 3-Wire, -15 %, +10 % -6: 500…600 VAC, 3-Phase, 3-Wire, -15 %, +10 % |
|
| Mains supply frequency | 60 Hz, ± 5 % | ||
| Control Functions | Control method | Digital Fast Fourier Transform with Hysteresis current control | |
| Harmonic filtering | Harmonics up to 51st order (Non Zero sequence), 5th & 7th harmonics up to 100 % of rated capacity and further harmonics order rejection as per impedance curve. | ||
| Harmonic order selection | Global / Selective compensation from 3rd to 51st order with settable amplitude | ||
| Harmonic attenuation ratio(2) | Up to 97 % at rated current | ||
| Power factor improvement /Load balancing | Automatic P.F. improvement up to the unutilized capacity of filter/Load balancing between line-to-line | ||
| Priority selection for compensation | Selectable priority between Harmonic rejection, power factor improvement and load balancing | ||
| Max. switching frequency | 18 kHz | ||
| Reaction time | 65 uSec | ||
| Transient response time | Less than one power cycle | ||
| Operation Specifications | Digital Inputs | 5-Programmable sequence inputs, sink / source and Active Open / Active Close Selectable | |
| Digital outputs | 4-Programmable sequence outputs, open collector type | ||
| Potential Free Contacts | 3-programmable relays | 1-NO, 1-NC for 5 A @ 240 Vac | |
| Programmable between 12 different options | |||
| Analog Outputs | 2-Programmable analog current outputs AO1 & AO2: (0…10) V / (4…20) mA with settable Gain, Bias, Min. and Max. scaling | ||
| Soft-charge | Through resistor within 5 sec. | ||
| Auto start | Yes, AHF can start at power ON condition in local and serial mode. | ||
| Auto Restart | Adjustable up to ten times for fault like Over current fault, Timed over current fault, Adjustable over current fault, DC bus over voltage fault, DC bus under voltage fault, Earth fault, Temperature fault, External fault with individual enable or disable. | ||
| Display Indications | Display and Keypad module | Digital Operation Panel 128 x 64 Graphical LCD with back light LED, 8-Key keypad, 3-Status indicating LED for Run, Stop, Fault; Real Time Clock. | |
| THDv, Line Frequency, DC bus voltage, PF, DPF, kW, kVA, kVAR, kWH, MWH, VL-L | |||
| Current of Filter / Load / Source side for each phase, THDi of load and Source side | |||
| TFT module (optional) | TFT Touch screen graphical display | ||
| Display Current waveform of Filter / Load / Source side for each phase. | |||
| Communication | Network connectivity | RS-485 for PC interface with Modbus-RTU protocol and Wi-Fi connectivity as standard (DeviceNet, Profibus DP (Slave), CANopen, Ethernet, ControlNet are optional) | |
| Protective Specifications | Protective function | Over current | Phase loss fault |
| Adjustable over current | Ground fault | ||
| Timed over current | External fault | ||
| DC bus over voltage | Charging fault | ||
| DC bus under voltage | EEPROM fault | ||
| Over temperature | CT Detection fault | ||
| Fault history | Last 20 faults with status at time fault occurred stored in memory | ||
| Electronic thermal overload | 120 % Overload for 60 Seconds, above 100 % harmonic current is limited by software | ||
| Environment | Installation location | Indoor (consult Amtech for outdoor applications) | |
| Type of cooling | Forced Air Cooling | ||
| Ambient temperature | 5…104 °F (-15…40 °C), contact AMTECH for higher ambient temperature requirements. | ||
| Storage temperature | -4…158 °F (-20…70 °C) | ||
| Audible noise | ≤ 72 dB @ 3 ft (1 m) | ||
| Altitude (above sea level) | 3300 ft (1000 m) w/o derate, (derate 1 % per 330 ft (100 m) above 3300 ft (1000 m) | ||
| Model derating with temperature | Above 40/45 °C (104/113 °F), derate the output current by 3 % /1 °C (1.8 °F) Maximum up to 50 °C (122 °F) temperature | ||
| Humidity | 0…95 % maximum, non condensing | ||
| Mechanical Specifications | Color | RAL 7035 | |
| Protection class | IP 31 (consult Amtech for higher protection requirements) | ||
| Reference standard | Harmonic | IEEE 519-2014, G5/4-1, GB/T 14549-93, IEC 61000-3-2, IEC 61000-3-4, IEC 61000-3-12 | |
| Safety | IEC 50178 | ||
- Above 240 A requirement, multiple units will be connected in Up to 40 units can be connected in parallel. (Contact Amtech for any other requirement and more details)
- Minimum 3 % line reactor is required in series with higher di/dt
- All models have bottom cable entry and front access.
- All performance specifications are valid at nominal
- Contact AMTECH for 3-phase, 4-wire requirements.
| Input voltage range 440…480 V | |||
| Model | Input Voltage | Filter current (IF) | Max. peak Filter current |
| Vrms | Arms | Apk | |
| AMT-AHF-024-5 | 480 | 24 | 57 |
| AMT-AHF-048-5 | 480 | 48 | 115 |
| AMT-AHF-080-5 | 480 | 80 | 192 |
| AMT-AHF-120-5 | 480 | 120 | 288 |
| AMT-AHF-160-5 | 480 | 160 | 384 |
| AMT-AHF-240-5 | 480 | 240 | 576 |
| Input voltage range 500…600 V | |||
| Model | Input Voltage | Filter current (IF) | Max. peak Filter current |
| Vrms | Arms | Apk | |
| AMT-AHF-100-6 | 600 | 100 | 240 |
| AMT-AHF-150-6 | 600 | 150 | 360 |
| AMT-AHF-200-6 | 600 | 200 | 480 |
| AMT-AHF-220-6 | 600 | 220 | 530 |
| Input voltage range 440…480 V | ||||||
| Model | Frame | Weight | Dimension - Inch(mm) | |||
| Kg / lb | W | D | H | |||
| AMT-AHF-024-5 | A | 80 / 176.4 | # 20.3 (515) | 16.1 (410) | 38 (975) | |
| AMT-AHF-048-5 | A | 90 / 198.4 | # 20.3 (515) | 16.1 (410) | 38 (975) | |
| AMT-AHF-080-5 | B | 272 / 599.6 | 23.6 (600) | 23.6 (600) | 78.5 (1995) | |
| AMT-AHF-120-5 | B | 280 / 617.3 | 23.6 (600) | 23.6 (600) | 78.5 (1995) | |
| AMT-AHF-160-5 | B | 320 / 705.4 | 23.6 (600) | 23.6 (600) | 78.5 (1995) | |
| AMT-AHF-240-5 | B | 430 / 948 | 23.6 (600) | 23.6 (600) | 78.5 (1995) | |
| Input voltage range 500…600 V | |||||
| Model | Frame | Weight | Dimension - Inch(mm) | ||
| kg/lb | W | D | H | ||
| AMT-AHF-100-6 | B | 275 / 606.3 | 23.6 (600) | 23.6 (600) | 78.5 (1995) |
| AMT-AHF-150-6 | C | 360 / 793.7 | 31.5 (800) | 23.6 (600) | 86.4 (2195) |
| AMT-AHF-200-6 | C | 470 / 1036 | 31.5 (800) | 23.6 (600) | 86.4 (2195) |
| AMT-AHF-220-6 | C | 470 / 1036 | 31.5 (800) | 23.6 (600) | 86.4 (2195) |
# Wall mount units, floor mount is optional. Other models are floor mounted.
Note: Plinth height is not included in above dimension for floor mounted units. Standard plinth height is 7.87 inch (200 mm) for frame - A (24 & 48 A) models and 3.93 inch (100 mm) for other models.
Power and control circuit overview
Amtech's Multi-Functional Active Harmonic Filter can compensate for reactive currents of Fundamental waves, harmonic currents etc. It finds applications in various scenarios with combination of its multi Functions.
- Office Automation equipment, air conditioners, lighting, UPS, elevators, pumping Facilities etc.
- Crane facilities, press machines, machine tools, high frequency induction heating equipment, inverter-incorporated facilities, printing machines, paper machines etc.
- City-water and sewage pumping facilities, harbor crane facilities, crane facilities at waste incineration plants etc.
- Ropeway hoisting machines.
- Amusement Park.
- Data Centers.
- High Rise Buildings.
- Commercial complexes.