The layout of
Induction systems

Many parts – forming a unified whole

Converters, inductors, temperature monitoring – and what exactly do induction systems really look like? Here we describe the layout: which parts belong to a complete induction system and which tasks they fulfil.

The Converter

General characteristics of a converter:

  • Provides the necessary energy
  • Determines the possible working frequency
  • Outputs 2 kW to 250 kW
  • Frequency range: 4 kHz to 2 MHz
HU series large high frequency generator

The outer circuit

Tasks of the outer circuit:

  • For the connection of the inductor
  • Is equipped with capacitors
  • Change of capacitor assembly for tuning the frequency possible (depending on the converter)

Properties of the Himmelwerk outer circuits:

  • Easy to maintain
  • Water-cooled
  • Compact design for space-saving integration
vorderseite eins Außenkreis ohne angeschlossenen induktor

The inductor

Structure of an inductor:

  • Water flowing through copper pipe
  • Geometry is adapted to the component
  • Exact adaptation to component guarantees high efficiency
Elongated inductor

The water cooler

Task:

  • Closed system for cooling the converter, outer circuit and inductor
  • Ensure a closed cooling water circuit
  • Maintain the quality of the cooling water
recooling system eChilly

The pyrometer

Task:

  • Device for no-contact measurement and regulation of the component temperature
  • Application ranges between 50 and 3000 °C surface temperature possible
Spectral pyrometer

The Smart Upgrade

Unique to Himmelwerk: the Smart Upgrade, which allows AI-based verification and checking of compliance with specified limit values for induction heating.

  • A retrofit solution for all AI-based converters
  • Monitoring the inductive processes
  • Identification of error sources
Smart upgrade to inverter in factory hall

Since 1950, Himmelwerk has shipped more than 19,000 high and medium frequency converters worldwide.
By how much can you reduce your CO₂ emissions per year? Let’s have a look.

Assumption 1: 25% of your converters are still operational.

Assumption 2: They have an average output of 6 kW and thus a power consumption of 7 kW.

Assumption 3: These generators are operational 8 hrs per day and 5 days per week.

Assumption 4: Inductive heating uses up to 40% less energy than conventional methods. Let’s assume 30%.

With these assumptions, our calculation would look like this: Daily energy consumption: 8 hrs x 7 kW = 56 kW

Energy savings per day: 56 kWh / 0.7 = 80 kWh; 80 – 56 = 24 kWh

Total energy savings per day: 24 kWh x 4,750 converters = 114,000 kWh

Total energy savings per year: 220 working days x 114,000 kWh = 25,080,000 kWh

Conversion factor kWh/CO₂: 1 kWh is equivalent to approx. 0.485 kg of CO₂ (source: German Federal Environmental Agency, Climate Change 15/2022)

CO₂ reduction per year: 25,080,000 kWh x 0.485 kg = 12,163,800 kg