Harmonic Filter

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Delta Harmonic Filter

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Approx. Price: Rs 3.25 Lakh / UnitGet Latest Price

Product Details:

Minimum Order Quantity	1 Unit
Brand	Delta
Rated Current per Cabinet	AC 400V 50~525Amp, AC 690V 100~500Amp (module combination)
Reactive Power Compensation Performance	PFis more than 0.99 after compensation (if the APF capacity is sufficient)
Output Current Limitation	Automatic (100% rated capacity)
Parallel Expansion	AC 400V Up to 10 Racks(7 modules per cabinet), AC 690V Up to 10 Racks(5 modules per cabinet)
Altitude	Max 1000m Rated Capacity, 1000-2000m (derating 1% per 100m)
Electric Connection	AC 400V 3P3W/3P4W, AC 690V 3P3W
Frequency	50Hz (60Hz) +/- 10%
Harmonic Filtering Degree	0 ~ 100% programmable per harmonic in Ampere value
Full Response time	Max 20 ms
Rated Voltage	AC 400V, AC 690V
Communication	Modbus Protocol, RS232/485
IP Grade of Cabinet	IP20, IP30 or customization
Relative Humidity	0~95%
Rated Current per Module	AC 400V 50Amp, 75Amp, 100Amp, AC 690V 100Amp
MTBF	More than 100000 hours
Harmonic Elimination Range	AC 400V 2rd ~ 50th order, AC 690V 2rd ~ 31st order (Selectable
Harmonic Filtering Performance	Filter up to 98% harmonics at rated load, max 3% THDv, max 5% THDi after filtering
Thermal Loss	Upto 3% of APF rated capacity (kVA)
Switching Frequency	AC 400V - 50A, 75A 60kHz, AC 400V - 100A 30kHz
Ambient Temperature	-10 to 50 deg C
Imbalance Correction Capability	AC 400V Mitigate negative and zero sequence, AC 690V Mitigate negative sequence
Controller	DSP control
Cooling method	Intelligent forced air cooling
Redundancy	Each module is an independent filtering system
Monitoring	PQC Monitor Software (Optional)
Input Voltage THD Range	Max 15%
Reactive Power Compensation Capability	Both inductive and capacitive reactive power
Noise Level	AC 400V Max 65dB(A) at 1m (Module), AC 690V Max 70dB(A) at 1m (Module)
Instant Response time	Max 100 us
Input Voltage Range	AC 400V AC 308V~480V, AC 690V AC 432V~880V

We are offering Delta Harmonic Filter.

Price Range: Rs. 175000 to 425000 per Unit

Other Details:

Delta’s PQC Series APF is connected in parallel with non-linear loads, and uses one set of current transformers (CT) to detect the load current.
It calculates each order harmonic current by FFT algorithms in its DSP microchips, and then generates a compensating current with the same amplitude but opposite phase angles to the detected harmonic current, which cancels out the original load harmonics.
The PQC series APF not only eliminates harmonic current from the load side, but it also mitigates harmonic voltage caused by harmonic currents.
The APF system can also improve power factor (PF) and correct load imbalances in the power system.

APF Structure:

Delta PQC Series APF has a modular design.
Usually the Delta active power filter system consists of one or several APF modules and an optional Liquid Crystal Monitor & Control Panel (LCM).
Each APF module is an independent harmonic filtering system, and users can change the harmonic filtering system rating by adding or removing APF modules.
According to the mounting type, Delta PQC series APF can be divided into Modular APF and Wall-mounted APF.

Features:

Multifunctional: Harmonic, reactive power and imbalance compensation
High harmonic filtering rate: Up to 98%
Excellent reactive compensation: High speed, Precise (-0.99≤PF≤0.99), Step-less, Bi-directional (capacitive and inductance) compensation
Excellent imbalance correction: Both negative and zero sequence, mitigates neutral current
Wide input voltage & frequency range, adapts to tough electrical environments
Low thermal loss (≤3% of rated APF kVA), efficiency ≥ 97%
High stability: Infinite impedance to grid, avoids harmonic resonance problems
Flexible application: Modular design, embedded in standard or customized cabinet
Easy installation and maintenance: Plug-in installation for APF module replacement and expansion
Wide capacity range: 50A~525A for a single cabinet, up 10 cabinets in parallel
Environmental adaptability: -10~50°C temperature, compatible with diesel generator
Complete protection: Grid Over/Under voltage, APF over current, over temperature, and more. All faults are recorded in the event log, which is convenient for failure analysis

APF Compensation Performance: Delta’s PQC Series APF can perfectly mitigate harmonic current, and suppress harmonic voltage caused by the harmonic current. When the APF capacity is sufficient and background harmonic voltage is low, the APF ensures excellent compensation performance at full load condition, as below:

THDu (Total Harmonic Distortion of Voltage) < 3%
THDi (Total Harmonic Distortion of Current) < 5%
PF (Power Factor) ≥ 0.99 (improves both leading and lagging PF)
Neutral Current Attenuation Ratio ( [IN(Before) - IN(After)] / IN(Before) ) >95%

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Harmonic Filter

Delta Harmonic Filter

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