50kVA HT Unit

Stork Cooperheat’s 50kVA Heat Treatment Units include our unique ‘Advantage 3’ temperature programmer/controllers which ensure the required temperature uniformity within each control zone and a panel mounted 12 point Fuji recorder.

The design of our equipment is based on over 50 years’ experience as a market leader in the field of heat treatment and has been developed to meet the real needs of the heat treatment engineering industry.

Stork Cooperheat modules deliver :
- Value for Money
- Versatility
- Ease of operation and maintenance
- Safety
- Fitness for purpose

Transformer core

• Three phase, forced air cooled, class H, 50kVA
• Primary winding connected in Delta
• Secondary winding connected in Star
• Auxiliary winding: 110V a.c. 3.3kVA single phase

Primary supply

• Primary voltage: 380V, 415V, 440V
• Primary current: 76A, 70A, 66A
• Frequency: 50/60 Hz

Protection

• Three phase 80A circuit breaker with shunt trip
• Three primary core winding over temperature thermostats linked to circuit breaker shunt trip

Secondary outputs

• Output: 32.5V – 0V – 32.5V (for 30V and 60V heating element operation)
• Auxiliary outputs: Two 110V, 10A, 50/60Hz output sockets
• Number of temperature controlled output channels: 6 channels
• Maximum load per output channel: 8.1kW (e.g. three 60V, 2.7kW heating elements)
• Maximum current per output channel: 135A

Switching

• Six double pole, 180A, contractors with 110V a.c. coil

Temperature control

• Temperature measurement, display and control
• Degrees Fahrenheit or Degrees Centigrade
• Start temperature
• Temperature ramp up and down in degrees per hour
• Hold/soak temperature set point and hold/soak time period setting

Temperature recording

• Ambient temperature: Minus 0˚C to 50˚C
• Humidity: 20% to 80% RH, non-condensing is required (temperature x humidity < 3200)
• Environmental protection: IEC IPSO (front door of panel mounted unit)
• Input points: 12 Points
• Input thermocouple types: Thermocouple inputs- K,
• Reference range: Type K: -200˚C to 1370˚C (-326˚F to 249˚F)
• Printing system: Ink jet system, 6 colour
• Chart Width: 180mm
• Chart Length: Z fold 20m
• Chart Speed: 5 to 300mm per hour

Construction

• Case: 304 Stainless Steel case fitted with four 150mm nylon wheels

Dimensions

• Weight: 355kg
• Case Dimensions:
  Height: 1545mm
  Width: 680mm
  Depth: 665mm