ABB HESG324442R112-F 216VC624
ABB HESG324442R112-F 216VC624
ABB HESG324442R112-F 216VC624
ABB HESG324442R112-F 216VC624
ABB HESG324442R112-F 216VC624

ABB HESG324442R112-F 216VC624 | HVDC Thyristor Module

  • Brand:​ ABB
  • ••
    Model:​ 216VC624 (Order Code: HESG324442R112-F)
  • ••
    Product Type:​ Thyristor (Silicon Controlled Rectifier – SCR)
  • ••
    Series:​ High Power Semiconductor
  • ••
    Core Function:​ High-power switching in HVDC (High Voltage Direct Current) converters, static VAR compensators (SVC), and large industrial drives.
  • ••
    Key Specs:​ High voltage/current rating, press-pack design, liquid-cooled.
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Part number: ABB HESG324442R112-F 216VC624
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Description

216VC624: Product Overview
The 216VC624 is a high-power thyristor (silicon controlled rectifier) module designed by ABB for use in the most demanding power electronic applications. This device functions as a solid-state switch capable of controlling megawatt levels of electrical power. It is a core component in HVDC transmission systems, where it converts AC to DC and vice versa, and in large static VAR compensators (SVCs) used for grid stability and reactive power control. The module is engineered for series and parallel stacking to achieve the voltage and current ratings required for utility-scale power conversion.
The thyristor operates as a latching switch—once triggered into the “on” state by a gate pulse, it remains conducting until the current through it drops to zero. This characteristic makes it ideal for phase-controlled rectification and inversion in AC/DC/AC conversion systems. The module utilizes a press-pack housing, which allows for double-sided cooling and enables robust mechanical clamping when multiple devices are stacked in series. This design is critical for handling the extreme electrical and thermal stresses encountered in HVDC valve halls and large industrial drives.

ABB HESG324442R112-F 216VC624

ABB HESG324442R112-F 216VC624

216VC624: Technical Specifications
  • ••
    Model Number:​ 216VC624
  • ••
    Order Number:​ HESG324442R112-F
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    Manufacturer:​ ABB
  • ••
    Product Type:​ Press-Pack Thyristor
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    Repetitive Peak Off-State Voltage (VDRM):​ Typically in the range of 5-8 kV (exact value depends on specific variant)
  • ••
    Maximum Average On-State Current (ITAV):​ Typically several kA (kiloamperes)
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    Circuit Configuration:​ Single thyristor
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    Package Type:​ Press-Pack (Press-Fit)
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    Cooling Method:​ Liquid cooling (direct water or glycol cooling)
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    Gate Trigger Current (IGT):​ Low current, provided by external gate unit
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    Critical Rate of Rise of Off-State Voltage (dv/dt):​ High (kV/µs)
  • ••
    Operating Junction Temperature:​ -40°C to +125°C (typical)

    ABB HESG324442R112-F 216VC624

    ABB HESG324442R112-F 216VC624

Core Features & Customer Value
The press-pack design is the module’s most critical feature. Unlike modules with a baseplate, the press-pack design allows for double-sided cooling, which drastically improves thermal performance and power handling capability. For system designers, this enables more compact converter designs with higher power density. The housing is also designed to fail to a short circuit in the event of a catastrophic failure. This is a vital safety feature in series-stacked applications (like HVDC valves), as it prevents a cascade failure and allows the system to continue operating (possibly at a reduced capacity) until the next maintenance shutdown.
The extremely high voltage and current ratings allow a single valve tower to control power flows equivalent to a medium-sized city. For utility engineers, this reliability and power handling are paramount for the stability of national power grids. The device’s robust construction ensures a long service life with minimal degradation, even when subjected to repeated thermal cycling, which is a significant factor in the total cost of ownership for HVDC converter stations.
Typical Applications
In HVDC transmission systems, hundreds of 216VC624 thyristors are stacked in series to form a single valve capable of blocking several hundred kilovolts. These valves are the heart of converter stations that transmit gigawatts of power over long distances with minimal losses, interconnecting asynchronous power grids or bringing power from offshore wind farms to shore.
In large static VAR compensators (SVCs) installed at strategic points in the electrical grid, these thyristors switch capacitor banks and reactors in and out of the circuit with millisecond precision. This provides dynamic reactive power support, stabilizing grid voltage and increasing transmission capacity.

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