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Heater_Control

MV Heater Control

Power 1 1 10 MW    Volts 1 1   11 KV

Heating Systems Control

AuCom, with decades of experience in SCR-based solutions, now offers a high-performance medium voltage solid-state heater controller for systems up to 11 kV. This fully integrated control solution extends heater life, enabling the confident transition from fossil fuel to clean electric heating. Designed to meet key safety agency requirements, it also helps lower installation costs by eliminating the need for traditional step-down transformers—offering a space-efficient and reliable alternative. For companies looking to decarbonize their heating processes, AuCom’s solid-state heater controller delivers the performance, safety, and efficiency needed to make the change with confidence.

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Highlights

Safe and Reliable Operation
  • Up to 11kV
  • Eliminates the need for costly step-down transformers typically required with lower voltage systems
  • Operates at low current
    allowing for up to 90%
    reduction in cable costs
  • Based on an IEC Panel Design
  • IP31/IP42
  • Feeder Panel with Protection and Disconnect Option
Integrated Thermal Control System
  • Delivers reliable and safe operation
  • Integrates a full thermal system including
    an electric heat exchanger, process controller and power system
  • Includes isolated low
    voltage enclosure including
    an HMI and PLC
compact size icon-01
Flexible SCR/Contactor Circuits
  • Up to 20 MW
  • Delivers high-efficiency power > 99%
  • Reduces overall size and weight of power controller solution

Features & Benefits

Advantages

  • Replace fossil fuel heat solutions,
    contribution to a carbon free production
  • Higher efficiency than tradition fossil heat systems to traditional heat exchanger
  • Easier to install, easier to control,
    easier to maintain
  • No risk of worker injury from hot oil,
    explosions or vapours due to no
    sedimentation, changing oil, leaks, gas or oil vapours
  • Emission free heating
  • Oil, gas and chemical industry:
    you don‘t have to burn what you
    actually want to sell
  • Useable with Solar Electrical Energy
    AuCom is well known in Oil & Gas
    industry, Europe and MENA
  • Arc Flash resistant solution
    (type approval)
  • Less space requirement,
    innovative cooling concept
  • Own production of panels and
    power stacks
  • Controller up to 11 kV / 10 MW

Technical Features

  • Zero-cross SCR control for low electromagnetic interference
  • Segregated low voltage compartment including HMI and PLC
  • Fully protection functions for protection of Heater and SCRs
  • Programmable metering
  • Passcode protection
  • Load element heater (anti-condensation)
  • 99-event recorder

Load Protection Functions

  • Over / Under voltage protection (ANSI 27/59)
  • Undercurrent detection (ANSI 37)
  • Current imbalance detection (ANSI 46)
  • Residual ground fault detection (ANSI 51G)
  • Alarm relay output available (ANSI 74)
  • Thermal overload lockout (ANSI 86)
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Configurations

  • IEC Panel Design with multiple frame sizes
  • Short circuit protection with fuses or Circuit breaker
  • Safety Switches for disconnecting and earthing
  • Cascading of ATL and controlled loads
  • Degree of protection IP31 / IP42
  • Line Contactor / Circuit Breaker
  • Arc Flash Detection optional
Heater-Control-Configurations

Specifications

General
Current Range 70 - 1700 A

Supply
Mains Voltage (L1, L2, L3)
   MVE-xxxx-V02 2.3 kV Phase-phase
   MVE-xxxx-V04 4.2 kV Phase-phase
  MVE-xxxx-V06 6.6 kV Phase-phase
  MVE-xxxx-V11 10/11 kV Phase-phase
  MVE-xxxx-V13 13.2-13.8 kV Phase-phase
Control Voltage (A1, A2, A3) 85 ~ 264 VAC or 90 ~ 350 VDC*
Rated Frequency 50/60 Hz
Rated lightning impulse withstand voltage (Up)  
  2.3 - 6.6 kV
60 kV
  10/11 kV
75 kV
  13.2/13.8 kV
95 KV
Rated short-time withstand current (symmetrical RMS) (lk) 50 kA**
 
Short Circuit Capability
Current Range 24 A ~ 1250 A (nominal)
Motor connection In-line or inside delta
Bypass Integrated internal
 
ANSI Protection Codes
Code Description Built-in Protection
48 Maximum start time Excess start time
66 Too many starts Restart delay and dynamic thermal model
37 Undercurrent Undercurrent
51L Load Increase (alarm) High current frequency output
51R Overcurrent - jam Excess start time, electronic shearpin
50 Overcurrent - short  Shorted SCR, electronic shearpin
49/51 Thermal overload Thermal overload - dynamic model
46 Current imbalance Current imbalance
27 Undervoltage Undervoltage
59 Overvoltage Overvoltage
47 Phase loss Phase loss
47 Phase sequence Phase sequence
50G Ground fault Ground fault
85 Communications failure Communications failure
85 Internal failure Internal failure
94/95

Ext. fault 1/code-1

Auxiliary trip A

Ext. fault 1/code-2

Auxiliary trip B
23

Motor overtemperature

Thermistor protection*
49

Stator winding overtemperature

Thermistor protection*
32

Under power

Power Loss

 

Inputs on Controller
Start (C23, C24) 24 VDC, 8 mA approx
Stop (C31, C32) 24 VDC, 8 mA approx
Reset (C41, C42) 24 VDC, 8 mA approx
Input A (C53, C54) 24 VDC, 8 mA approx
Input B (C63, C64) 24 VDC, 8 mA approx
Motor thermistor (B4, B5) Trip point > 2.4 kΩ
 
Outputs
Rating of output relays on Controller 10 A @ 250 VAC resistive
6 A @ 250 VAC 15 p.f. 0.3
10 A @ 30 VDC resistive
Outputs
  Relay output A (41, 43, 44) Normally Open
  Output Relay  B (51, 52, 54)
 Changeover
  Output Relay C (61, 62, 64) Changeover
  Analog output (B10, B11)
0-20 mA or 4-20 mA
 
Environmental
Degree of Protection
  Power Assembly IP00
  Controller IP54 / NEM12
Operating Temperature
  Humidity
5% to 95% Relative Humidity
Storage Temperature -25 °C to +70 °C
  Humidity
5% to 95% Relative Humidity
Operating Altitude 1000 m ASL, higher with derating
Pollution Degree IP00
Vibration Designed to IEC 60068
Equipment Class (EMC)  Class A
EMC Emission IEC 60947-4-2
EMC Immunity  IEC 60947-4-2
 
Certification
CCC GB 14048.6
CE EN 60947-4-2
C-UL C22.2 No. 60947-4-2
UL 60947-4-2
Marine  
  Lloyds Lloyds Marine No 1 Specification
  ABS Steel Vessel Rules 2010
RCM
 IEC 60947-4-2
 
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