High Voltage Rectifiers

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