Description
DS200IAXSG1A Product Overview
The DS200IAXSG1A is an IGBT AA/AB snubber printed-circuit board used inside GE Mark V Speedtronic medium-voltage drive cubicles. It mounts adjacent to the IGBT power modules and absorbs voltage spikes (dv/dt) generated during fast switching, protecting the semiconductors and reducing electromagnetic interference (EMI) radiated into the turbine-control backplane.
The DS200IAXSG1A is an IGBT AA/AB snubber printed-circuit board used inside GE Mark V Speedtronic medium-voltage drive cubicles. It mounts adjacent to the IGBT power modules and absorbs voltage spikes (dv/dt) generated during fast switching, protecting the semiconductors and reducing electromagnetic interference (EMI) radiated into the turbine-control backplane.
In the drive hierarchy the board sits at the “power-switch protection” layer: it receives gate-drive signals from the control card, routes them through snubber networks (RC or RCD), and returns fault/status lines to the CPU. Multiple trim-pots (labelled PL, NL, U, V, W, PR, NR) allow on-site adjustment of snubber damping to match the installed IGBT module characteristics. Because the card is passive (no processor), it is accepted in safety-related turbine-compressor drives where “simple device” classification avoids additional software V&V.
Because the board is certified for marine environments and ships with conformal coating, it is widely used in gas-turbine compressor drives, off-shore platform VFDs, and pipeline booster stations where fan-less, high-dv/dt immunity is mandatory
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IS200VTURH2B
Technical Specifications
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Model Number: DS200IAXSG1A
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Manufacturer: General Electric
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Product Type: IGBT AA/AB Snubber Board
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Function: dv/dt snubber network for IGBT power switches
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Connectors: 3 × 8-pin Molex headers (gate-drive in/out)
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Trim Controls: PL, NL, U, V, W, PR, NR multi-turn pots for damping adjustment
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Snubber Elements: Foil capacitors & metal-film resistors (RC network)
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Working Voltage: 1500 V (typical Mark V IGBT stack)
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Isolation: Basic insulation; user must maintain IGBT safety clearances
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Weight: 2.5 kg (5.5 lb)
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Dimensions: 25 × 30 × 30 cm (approx.)
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Temperature: –40 … +85 °C storage; 0–60 °C operational (drive ambient)
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Coating: Standard GE Mark V conformal coating for humidity & contamination resistance
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Certifications: CE, UL, RoHS, marine environment ready
IS200VTURH2B
Core Features & Customer Value
RC snubber network on-board – Eliminates external snubber resistors and capacitors, saving panel space and wiring time while ensuring IGBT dv/dt compliance
RC snubber network on-board – Eliminates external snubber resistors and capacitors, saving panel space and wiring time while ensuring IGBT dv/dt compliance
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Field-adjustable damping – Multi-turn pots (PL, NL, U, V, W, PR, NR) let technicians fine-tune overshoot for different IGBT module types without removing the card
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3 × 8-pin quick connects – Standard Mark V 8-pin headers route gate-drive and fault lines in one plug, reducing wiring errors and vibration-related failures
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Conformal-coated & marine-rated – Survives salt, humidity, and conductive dust common in off-shore compressor drives without additional enclosure pressurisation
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Drop-in spare – Shares the DS200 form factor with earlier IAXS revisions; no mounting changes, no parameter downloads, and no calibration required during swap-out.
Typical Applications
In combined-cycle power plants the DS200IAXSG1A is installed in Mark V drive cubicles that feed the gas-turbine compressor motor. The snubber network clamps IGBT turn-off spikes, keeping EMI within IEEE 519 limits and extending IGBT lifetime beyond 100,000 hours
In combined-cycle power plants the DS200IAXSG1A is installed in Mark V drive cubicles that feed the gas-turbine compressor motor. The snubber network clamps IGBT turn-off spikes, keeping EMI within IEEE 519 limits and extending IGBT lifetime beyond 100,000 hours
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In pipeline booster stations the same card is used in 4.16 kV VFDs that drive centrifugal compressors; the trim pots are adjusted on-site to match the installed 1700 V IGBT modules, ensuring <5 % overshoot during full-load switching
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Because the board is certified for marine environments, it is also used on off-shore platforms for well-boost compressors where fan-less, high-dv/dt immunity is mandatory .
