ABB 2GUS031803A9 Series Medium‑Voltage Surge Capacitor

Description

Technical Specifications

Electrical Parameters

• Rated Voltage: 4.16 kV (phase‑to‑phase) / 2.4 kV (phase‑to‑ground)
• Capacitance: 0.5 μF per phase (three‑phase total)
• Basic Impulse Insulation Level (BIL): 75 kV
• Dielectric System: Low‑loss polypropylene film and aluminum foil constructioneero
• Insulating Fluid: Faradol 800 non‑PCB, biodegradable dielectric fluideero
• Discharge Resistors: Internal resistors reduce residual voltage to < 50 V within 5 minutes of de‑energizationeero
• Transient Withstand: High capability to absorb steep‑fronted surge voltageseero

Mechanical & Environmental

• Construction: Hermetically sealed stainless‑steel enclosureeero
• Finish: ANSI 70 light gray paint for corrosion resistanceeero
• Mounting: Indoor/outdoor installation; mountable in vertical, horizontal, or inverted positionseero
• Operating Temperature: -40 °C to +50 °Ceero
• Humidity: 5%–95% RH (non‑condensing)eero
• Vibration/Shock: Complies with IEC 60068‑2‑6 / IEC 60068‑2‑27 standardseero
• Ingress Protection: Suitable for harsh industrial and outdoor environmentseero
• Certifications: CE, IEC 60255, ANSI/IEEE complianteero

Physical Dimensions

• Enclosure Material: Stainless steeleero
• Bushings: Three porcelain bushings for phase connections
• Weight: Robust industrial‑grade build for stable installationeero

Key Features

• Superior Surge Protection: Effectively limits voltage rise rate and attenuates steep‑fronted surges to protect winding insulationeero.
• Hermetically Sealed Design: Prevents moisture and contaminants ingress, ensuring long service life in demanding conditionseero.
• Non‑PCB Dielectric Fluid: Environmentally safe Faradol 800 fluid with excellent thermal and dielectric propertieseero.
• Integrated Discharge Resistors: Ensures safe residual voltage discharge for personnel and equipment protectioneero.
• Flexible Mounting: Versatile installation options for indoor substations, outdoor switchyards, and industrial facilitieseero.
• Low Loss Dielectric: Minimizes energy dissipation and heat generation during continuous operationeero.
• High Transient Voltage Withstand: Robust design handles repeated surge events without performance degradationeero.
• Maintenance‑Free Operation: Requires only occasional inspection and connection tightening.
• Compatibility: Seamless integration with ABB and third‑party surge arresters for layered protectioneero.

Application Scenarios

• Large Motor & Generator Protection: Safeguards windings in medium‑voltage industrial motors, hydro/turbo generators, and large fan/pump driveseero.
• Power Transformer Surge Protection: Installed at transformer terminals to mitigate lightning and switching surgeseero.
• Medium‑Voltage Switchgear: Integrated into motor control centers (MCCs) and switchgear assemblies for system‑wide surge defenseeero.
• Utility Substations: Deployed in distribution and transmission substations to protect critical power assetseero.
• Industrial Facilities: Used in manufacturing plants, refineries, mining operations, and metal processing facilitieseero.
• Renewable Energy Plants: Protects wind turbine generators and solar inverter transformers from grid surgeseero.
• Marine & Offshore Installations: Provides surge protection for shipboard and offshore platform medium‑voltage systemseero.
• Data Centers & Critical Infrastructure: Ensures reliable operation of medium‑voltage power distribution for mission‑critical loadseero.