Forry T/R Sets

FORRY Transformer/Rectifier power units (formerly ABB Westinghouse) have provided reliable power for electrostatic precipitation processes since 1959.

FORRY TR's can be supplied in virtually any OEM configuration for easy fit-up to replace even obsolete TR's.

The FORRY Round-Tank TR serves as an identical direct replacement to the flagship R-C Transformers installed from the 1960's to date. All FORRY TR sets are equipped with 100% copper wound transformers and heavy-duty R/C compensated diode stacks.

Each TR set undergoes extensive quality assurance testing before shipment. Several models are available in stock for immediate shipment.

Optional Accessories & Equipment

Internal Voltage Divider Resistor(s), Typically 80 Megohms, for Feedback to Automatic Voltage Control.

• External Voltage Metering Resistor
• External Current Metering Resistor
• Low Voltage Taps for Varying the Primary Input Voltage
• Vacuum-Pressure Gauge
• Alarm Contacts for:
  • Thermometer,
  • Liquid Level Gauge,
  • Vacuum Pressure
• Non-Standard Ambient (Standard=40°C avg/50°C max)
• Altitude Above 3,300 Feet
• Premium Epoxy Paint System for Corrosive Environments (Passed 5,000 Hour Salt Spray Test)
• Special Paint Colors (ANSI 70, Light Gray, Std)
• Current Limiting Reactor Available with:
  • No Enclosures (Open Core & Coil assembly)
  • NEMA 3R Enclosure
  • T/R LV Bushing Enclosure
• Custom Retrofit Designs for Replacement of Existing T/R Sets

Electrical Tests

The following electrical tests are conducted on FORRY T/R Sets:

• Resistance
  • LV Winding
  • HV Winding
  • Choke Coil
• Transformer Voltage Ratio
• No-Load and Impedance
• Diode Stack Forward and Reverse Meggar
• Diode Forward and Reverse Meggar Readings: Repeated to Assure Rectifier was Not Damaged During the Insulation Test
• Resistor Test
• Induced Potential and Spark Test
  • Sparkover Test
  • Induced Potential Test
• Applied Potential Test
• Grounding Switch Resistance Test

Leak Test

Completed unit is pressure tested at 8 psig for 6 hours. In addition, the tank is subjected to a full vacuum during the core/coil processing and filling operation

Title	File Type	Language
BV-D6156GB FORRY® Transformer / Rectifier Sets	Data Sheet	English
BV-P6154GB Forry ESP Products Brochure	Marketing Brochures	English