Products

Plating / Anodizing Rectifiers

Low voltage and high current rectifiers for Electro-plating and/or Anodizing Rectifiers
Equipped with both Voltage Control and Current Control Modes
Advanced output filtering for low ripple currents
Modular design
Available modules: 12V, 500A and 24V, 250A
Paralleling up to 32 Rectifiers

Product Features
Harmonic Mitigation:	i - Sine AHF assures the plant current THD to stay below the limits specified by the IEEE 519-1992 with full dynamic compensation.
Power Factor Control:	i - Sine AHF ensures unity power factor operation of the plant. Fully dynamic compensation adaptive to the load changes.
Current Balancing:	i - Sine AHF assures the plant current drawn from the EB to be balanced and sinusoidal.
Neutral Current Compensation:	A 3P4W i - Sine AHF fully supports the load neutral current locally, and assures zero neutral current on the source/EB side.
No prerequisite:	i - Sine AHF in general, does not require the installation of input chokes with VFDs, as long as the load current THD is below 40%.
Energy Efficiency:	i - Sine AHF consists of an intelligent On-The-Fly real-time internal switching loss minimization technique to further enhance the internal energy efficiency.
Optimum Design:	Light in weight, compact in size, quieter in operation, and best in the performance.
Wide Range of Harmonic Selection:	Ability to cancel all odd harmonics up to 71st order. These harmonics are individually selectable/programmable with no limitation.

i - Sine AHF Specifications
Plant Input Conditions
System Voltage (RMS)	350 - 450 V
Fundamental Frequency (Hz)	50 ± 5%
System Configuration	3P3W and 3P4W (single-phase option available)
Product Specification
Power Semiconductor Devices	IGBTs
Output Current Ratings (RMS)	25A/ 50A/ 100A/ 150A/ 200/ 300A
Continuous Peak Compensating Current Rating	2.2 times RMS Value “No need of oversizing with VFD loads” #
Harmonic Compensation Range	All odd harmonics up to 71st order “Widest range and fasted harmonic filtering available in India”#
Selective Harmonic Compensation	From 0 to 100% for all 71 Harmonics “No limit on the number of harmonics selection at a time” #
Reactive Power Compensation	Yes
Harmonic Attenuation Factor	More than 97% at rated load
Load Current Balancing	Yes
Cooling	Forced Air Cooling
Cable Entry	Bottom
Mounting	Wall mounting/ Floor mounting
i - Sine AHF Control System
Controller type	Digital control
Control Method	Based on Adaptive Artificial Neural Networks (ANN) “Ultra-fast computation” #
Dynamic Response Time	100 microseconds
User Interface
Monitoring (Waveform and Parameters)	Through InstaVIEW software on USB port
User Parameter Setting	Using InstaVIEW software
Additional Details
Operating Temperature Range	0 to 50o C “No derating required in the entire operating range”#
Active Power Loss	Less than 3%
Parallel Operation	Yes
Short-circuit Protection	Yes
Color	Standard
Noise Level	65dB

i - Sine AHF Sizing
Plant Harmonic and Reactive Current Calculations
The i - Sine AHF should be sized properly to compensate both the harmonics and fundamental reactive currents simultaneously. Following procedure can be used to compute the required i - Sine AHF rating. The knowledge of three basic parameters required to size the i - Sine AHF are:
Parameter	Symbol
Total RMS current drawn by the plant at full load	I _rated
Total current harmonic distortion at full load	THD_i*
Fundamental power factor (either leading or lagging)	PF
* Absolute value (i.e., percentage/100).
Once the above parameters are known, the plant total harmonic current (I_H) in amperes can be calculated as: $$IH = Irated { \sqrt{{THDi^2} \over 1 + THDi^2}}$$
While, the plant total fundamental reactive current (IQ) in amperes can be determined as: $$IQ = Irated { \sqrt{{1- THDi^2} } \sqrt{ 1 - PF^2}}$$
i - Sine AHF Rating Selection The RMS current rating (IF) of i - Sine AHF can be selected as per the compensation requirement.
Purpose of AHF
Harmonics Cancellation Only Compliant to EB harmonic requirements (or IEEE standards, such as, IEEE 519-2014)	$$IF = IH $$
Unity Power Factor Operation Only For maximizing power factor incentives only	$$IF = IQ $$
Simultaneous Harmonics Cancellation and Unity power Factor Operation Compliant to EB harmonic requirements and power factor incentives	$$IF = { \sqrt{{I^2H + I^2Q} } }$$