High Current Rectifiers Application

GE TEK Make Modular IGBT switch mode rectifiers are designed to give best electrical performance fro electroplating/Anodizing process and get excellent platting quality. These rectifiers are modular design, reducing user's power consumption and integrated with timer control and RS485 communication interface.

Technical Data:

  1. Rectifier Type      -   IGBT High Frequency Modular Structure
  2. I/P Voltage           -   380-440VAC 3 Phase 50Hz
  3. O/P Voltage         -   6V-200VDC
  4. O/P Current          -  10A-10KA
  5. Control Accuracy -   ≤± 0.5%
  6. Power Factor       -   ≥ 0.98
  7. Efficiancy            -    Better than 90% at rated Output
  8. Control Mode      -   Constant Voltage/Current
  9. Cooling               -   Forced Air/ Water Cooling
  10. Protections
  • Output Over current protection
  • Short Circuit protection
  • Over Heat Protection
  • Input Over/Under voltage protection

Optional Facility:

We can provide touch screen type HMI for programming the plating cycle. Programming facility is available up to 15 different models and each model can have 30 steps.
Chemical Processes often have large power rectifiers as their primary source of DC Power. If these rectifiers are turned off, either for maintenance or a malfunction, there is a danger to the hardware of the chemical process. To solve this problem, standby rectifiers are installed in parallel with the main rectifiers. These rectifiers, known as Polarization Rectifiers, pass electric current through the process and prevent damage. As these rectifiers are used as stand by, they have to be extremely reliable. During start-up of the electrolyser, as the main rectifier is off, the PR supplies current to the electrolyser, and continues to supply the current as long as the output voltage of the main rectifier is less than the voltage of PR. The moment the main rectifier voltage is equal to the PR, the PR supplies current equal to or less than the set point current During normal operation this unit operates in parallel with the main rectifier supplying rated current each polarization rectifier consists of 2 rectifiers which are designed to operate in parallel redundant mode, A third rectifier known as the Booster rectifier may also be used. POLARISATION RECTIFIERS

Special Features of our Polarization rectifiers

  • Auto / Manual
  • Output short circuit proof
  • In build power factor correction and harmonic filter
  • AC input overload protection

Our design Ratings:

  • 50V/300A
  • 110V/75A
  • 220V/50A DC, 220V/75A DC
  • 420V/60A DC, 420V/75A DC
  • 500V/75A DC
POWER HOUSE FCBC designed to supply continuous power to the DC load and simultaneously charge the batteries connected. Input supply from 415 VAC 3 Phase or 230 VAC 1 Phase is converted to regulate DC. The charger has two independent systems (Float and Boost), Normally the DC power is supplied to the load by the Float Charger. It also supplies trickle current to the battery to keep it healthy. If the charging current under Float Mode exceeds a set level, Boost charger is switched ON. It supplies Quick charging current to the battery. On battery reaching the set value, the Boost Charger is switched OFF.
Process of disinfection and anti-fouling; effectively converts a sodium chloride solution to sodium hypochlorite (bleach) utilizing either a combination of fresh water, salt and DC power, or a combination of sea water and DC power. ELECTROCHLORINATION
Electrochemical Plants require low voltage (ranging from 5VDC to 1000VDC) and high current (From 250ADC to 30,0000ADC or more) DC sources. Continuous process applications like hydrogenation, electrolysis, chlorination, Potassium & Sodium Chlorate, Soda-ash, Caustic chlorine Production, Copper, Aluminium, Zinc refining etc., reliable DC sources. GE TEK Electronics Private Limited is offering highly reliable Rectifiers for continuous process industries at economical cost. GE TEK Electronics Private Limited is offering consultancy for selection of optimum high current rectifiers.
Electro deposition of a metal (or metal alloy) from an electrolyte solution onto another component. The item to be plated (substrate) is connected to the cathode. Direct current (DC) is sent through the anode. The process of coating an item (substrate) with a metal by means of electric current
Process of coating primarily aluminum, titanium and magnesium through theuse of an anodic circuit. Produces a thin film of aluminum oxide on the aluminum part. A variety of colors are available in aluminum anodizing through subsequent dye processes and in titanium/magnesium anodizing through voltage control
GETEK make AC voltage regulator panel for Aluminium colouring applications.  
High power silicon controlled rectifier systems became available and those systems also found their way into the furnace boosting control systems. The main advantages of SCR (Silicon Controlled Rectifier) controlled systems are of course that they are based on solid state technology and will show no signs of wear, that they are continuously controllable and that they are capable of very precise.
Temperature and process controllers are used over a vast range of industrial, scientific and commercial applications. These controllers automatically adjust outputs based on sensor feedback working in concert to control process variables such as temperature, flow, pressure and relative humidity, as well as, to achieve an optimized and stable process.   ELECTROCHLORINATION

MID Frequency Control Panels For ESP

MID Frequency ESP control panels:

Our Products , control cards are 100% indigenous & are designed , programmed by our team. Our make MID Frequency control panels are widely used at power plant's Electrostatic precipitator to maintain the average high voltage to reduce dust emission from the plants. it operates in modest frequency of 400 -500 HZ. Best ESP Efficiency is obtained due to reduced ripple with Transformer rectifier which can maintain field's required average voltage.

The Transformer-rectifier set, also called a TR or a TR set, converts the low voltage of the plant power system to the high voltage required for precipitator operation. It is referred to as a “set” because the tank contains both the high voltage transformer used to convert relatively low voltage high current AC to high voltage and low current AC, and the full wave diode (rectifier) bridge used to convert the AC to DC for use in the precipitator

Special features of our control panel:
  • Fast control during sparking / arcing results in power discharge in to precipitator gives long life of ESP
  • Balanced load on auxiliary power
  • Working as near unity power factor results in considerable reduction in auxiliary input KVA
  • Buyback period on investment by saving on KVA consumption would be about 12 to 17 months
  • Need of extending additional field control emission level can be avoided in most of the cases.
Advantages of MID frequency control panels:
  • Medium frequency power switching (MFPS), operate in the more modest frequency of 400Hz, the medium frequency system are capable of using existing 50/60 Hz TR's and existing control cabinet locations for significant cost savings.
  • The increased efficiency is realized because of the decrease in ripple on the KV voltage that allows higher average KV before spark over occurs
  • The technology uses an increased exciting frequency of up to 400 Hz and controls power level delivered to the TR primary by variations of the duty cycle of the AC power feed. This technique is commonly referred as "PWM".
Retrofitting/ Up-Gradation of ESP control panels: We have done massive quantity of retrofit jobs for ESP control panels of clients from northern and southern India.We have our precious satisfied customers are listed here where our product installed / up-gradation of ESP control panels. Our controller is performing well and improving performance of dust collection in Electrostatic precipitators. List of Major Retrofit / Up gradation:
  • Chinese HVR controllers to GE TEK make advanced controllers
  • Hind Rectifier controllers to GE TEK make advanced controllers
  • Ador ESP Controllers to GE TEK make advanced controllers
  • Kraft Powercon controllers to GE TEK make advanced controllers
  • BHEL Controllers to GE TEK make advanced controllers
Special Features of our controller:
  •  Programmable 12 numbers of digital outputs to the remote PLC/DCS
  •  Numerical keyboard with direct parameter entry method for easy settings
  •  Has primary AC voltage control, DCKV control, DC mA control and AC amps limit
  •  Single SCR firing interlock
  •  Operation and Monitoring ESP parameters from common remote computer through RS 485 communication
  •  Easy programming of digital input logics
  •  AC input voltage, AC input amps DC voltage, DC mA waveform monitoring through RS 485 communication using optional program
  Spark Rate Control
  • Industry’s most accurate spark rate control
  • Spark rate maintain from the moment of new setting, no tuning time required
  • Di/dt and dv/dt analysis for all the possible spark conditions
Charge Ratio
  • Cycle skipping count, settable from 1 to 255
  • Base level kv setting (0-50%)
  • Back Corona Detection and Control
  • Detection without reducing Idc level very much
  • No loss of filtering during detection
Configurable With About 6 Settings
  • Interval setting, 5min to 12 Hours, settable in HH:MM:SS format
Rapper Control
  • 4 rapper relays
  • Individually select able ON and OFF timings
  • Rapper Failure detection for active rappers
SCR CONTROLLED FURNACE POWER SUPPLIES

High power silicon controlled rectifier systems became available and those systems also found their way into the furnace boosting control systems. The main advantages of SCR (Silicon Controlled Rectifier) controlled systems are of course that they are based on solid state technology and will show no signs of wear, that they are continuously controllable and that they are capable of very precise.

Process of coating primarily aluminum, titanium and magnesium through theuse of an anodic circuit. Produces a thin film of aluminum oxide on the aluminum part. A variety of colors are available in aluminum anodizing through subsequent dye processes and in titanium/magnesium anodizing through voltage control

Electro Chemical Application

Electrochemical Plants require low voltage (ranging from 5VDC to 1000VDC) and high current (From 250ADC to 30,0000ADC or more) DC sources. Continuous process applications like hydrogenation, electrolysis, chlorination, Potassium & Sodium Chlorate, Soda-ash, Caustic chlorine Production, Copper, Aluminium, Zinc refining etc., reliable DC sources. GE TEK Electronics Private Limited is offering highly reliable Rectifiers for continuous process industries at economical cost. GE TEK Electronics Private Limited is offering consultancy for selection of optimum high current rectifiers.