Transformer Curing OvenThe ‘BEMAG Transformer Curing Oven’ was designed and manufactured by ETSM Technical Services Ltd. for use in the electrical distribution transformer industry. The complete curing oven is comprised of an oven enclosure, oven door, automatic cart tugger, oven cart, and machine controls.

Oven Door

The oven door is an insulated slab, cable driven and operated by a ‘Safedrive’ door operator. The door assembly is equipped with emergency brakes, for operator safety in the event of a cable failure. The door is provided with a brake at each of the bottom guide wheel assemblies.

Oven Cart

The oven cart is a welded steel frame on V-Groove wheels.  A steel grating deck with drip tray is also provided. The oven cart stops outside the oven and under the crane enabling easy loading and unloading of transformer coils. The cart is mechanically driven by the oven cart tugger.

Oven Cart Tugger

The oven cart tugger is a welded construction, chain driven cart drive for automated loading and discharging of the oven cart into and out of the oven. All components are temperature rated for maximum life expectancy in the harsh oven environment.

Request for Quote

(click on thumbnail to enlarge)

Project Highlights for the Transformer Curing Oven

Product Description

The ‘BEMAG Transformer Curing Oven’ was designed and manufactured by ETSM Technical Services Ltd. for use in the electrical distribution transformer industry.

Capabilities & Processes Applied

Design

  • Create Concepts
  • Create 3D CAD models and CAD detailed drawings
  • Electrical system approval certification by 3rd party

System Documentation

  • Operation, installation, maintenance manuals
  • Purchased component technical data sheets
  • Electrical/pneumatic schematics
  • CAD detailed drawings
  • Certificates and inspection sheets

Warranty

  • 6-months from date of manufacture

Manufacturing

  • CNC machining by certified machinists
  • MIG welding by certified welders
  • Assembly by certified millwrights
  • Laser cutting
  • Powder Coating
System Specifications

Utility Requirements:

  • Electrical: 575 VAC / 3 PH / 60 Hz / 30 A
  • Natural gas : 500,000 BTU/hr (147 kWh)

Normal Operating Temperature:

  • 160°C (320°F)

Control:

  • Operator control panel
  • Gas train/ thermocouples/ modulating valve
  • ABB ACS550 VFD

Safety:

  • Category 3 safety circuit:
    • Dual channel safety relay
    • Dual contacts in emergency stop devices
    • Dual redundant monitored contactors

Maximum Part (transformer) Weight:

  • 25000 lbf (111,206 N)

Circulation Fan:

  • Manufacturer: New York Blower Fans
  • Volumetric capacity: 9500 CFM
  • Maximum speed: 1730 RPM
  • Horsepower: 5 Hp Premium Efficiency Motor
  • Electrical service: 575 V / 3 PH / 60 Hz
  • Temperature withstand: 800°F

Exhaust Fan:

  • Manufacturer: New York Blower Fans
  • Volumetric capacity: 1000 CFM
  • Maximum speed: 2204 RPM
  • Horsepower: 5 Hp TEFC Premium Efficiency Motor
  • Electrical service: 575 V / 3 PH / 60 Hz
  • Temperature withstand: 650°

Oven Door

  • Mass: 400 lbm (181 Kg)
  • Mass of the frame, drive etc: 1140 lbm (517 Kg)
  • Motor
    • Manufacturer: Elektromaten S140.14-38,10
    • Type: Safedrive
    • Maximum speed: 14 RPM
    • Electrical service: 575 V / 3 PH / 60 Hz

Oven Cart Tugger

  • Mass: 520lb (236 Kg)
  • Motor
    • Manufacturer: Nord Gear
    • Type: Gear motor SK42F 90SH/4 CUS
    • Maximum speed: 16 RPM
    • Electrical service: 575 V / 3 PH / 60 Hz

Oven Cart

  • weight capacity: 25,000 lbf (111,206 N)
  • Mass cart: 2600 lbm (1179 Kg)
  • Mass drip tray: 370 lbm (167 Kg)
  • Mass of tracks: 300 lbm (136 Kg)
Accessories
System Size

Width – 97″ (2464 mm)

Depth – 164″ (4166 mm)

Height – Front – 231″ (5867 mm), Back – 128” (3251 mm)

Weight – 8000 lb (3629 Kg)

Oven Useable Size: W 60″ (1534 mm)  x D 156″ (3962 mm) x H 100″ (2540 mm)

Manufacturing Tightest Tolerances

Typical Machining Tolerance (+/-) 0.001” (0.0254 mm)

Materials Used

Steel

Aluminum

HSS Tubing

Purchased Components:

Motors, bearings, fasteners, valves, electrical components etc…

Material Finish

Powder Coated

In Process Testing / Inspection Performed

Operational Testing

Industry for Use

Electrical Distribution

Transformer Industry

Standards Met

Customer supplied specifications
CEC
CSA

SPE 1000
CWB Welding Specifications

Back to Top