Eaton Cooper Power Series 2603973B02T Epoxy Bushing Well 200A 15kV 25kV 28kV with Fixed Stud for Pad-Mounted Transformer

Product Specifications

Product Name/Series: Eaton Cooper Power Series Epoxy Bushing Well with Fixed Stud (2603973B02T)

Maximum Rated System Voltage: 25 kV / 28 kV Class (Optimized for 15.2/26.3 kV and 16.2/28.0 kV underground distribution grids)

• Lightning Impulse Insulation Withstand (BIL): 125 kV Full Wave Crest Parameters.
• AC Power Frequency 1-Minute Withstand Voltage: 45 kV rms Symmetrical Baseline.
• DC 15-Minute Withstand Voltage: 100 kV Symmetrical Baseline.
• Minimum Corona Voltage Level: 21.5 kV with strict zero-discharge verification.

Continuous Base Current Capacity: Rated for 200 A rms continuous current carrying loops.

Short Circuit Fault Current Withstand: Validated up to 10,000 A rms Symmetrical for 0.17 seconds and 3,500 A rms Symmetrical for 3.0 seconds.

Apparatus Installation Dimensions: Designed for standard 2.50 inch shank diameters to fit 2.56 inch (65 mm) transformer tank opening holes.

Apparatus Clamp & Component Configuration Matrix

The Eaton Cooper Power series 200A bushing well infrastructure is engineered to interface seamlessly with specialized external clamping hardware for diverse tank wall environments:

• Standard Fixed Stud Assemblies: Utilizing a knurled copper stud with rolled threads to ensure high contact conductivity and permanent structural alignment during apparatus assembly.
• 3-Stud Flanged Clamping Layouts: Precision-calibrated with stainless steel or mild steel configurations to provide rigid, leak-free compression on industrial power networks.
• 4-Stud Multi-Bail Tab Layouts: Utilizing heavy-gauge steel clamps with up to four integrated bail tabs, specifically built for securing feedthru inserts and loadbreak elbows in high-vibration applications.

Material & Structural Characteristics

• Premium Specialized Epoxy Compound Housing: Formulated and molded to create a uniform, high-density insulation body that delivers exceptional electrical, thermal, and mechanical properties.
• Semi-Conductive External Molded Collar: Heavy-duty molded outer ring that provides continuous ground plane connectivity during live grid operation, ensuring safe operator exposure.
• Engineered 7-Degree Tapered Flange Profile: Advanced flange geometry formulated to systematically provide controlled and uniform gasket compression around the tank wall interface.
• Knurled Copper Stud with Rolled Threads: High-conductivity fixed hardware ensures low contact resistance and eliminates thermal drift under constant transformer vibration.
• Factory-Provided Shipping Cap Protection: Features a robust secondary shipping cap pre-installed over the well cavity to protect internal female contacts from dust and moisture intrusion during transit.

Product Functions

1. High-Voltage Primary Winding Line Transition: Establishes a rugged, insulated pathway for primary winding leads to pass from inside the oil tank to the exterior front plate panel safely.

2. Hermetic Gaskets Compression Sealing: Achieves a tight seal that prevents fluid leakage, operating reliably even under extreme thermal cycling of the insulating medium.

3. Universal Separable Connector Interfacing: Serves as a versatile apparatus receptacle; its standard internal taper mates seamlessly with all bushing inserts, feedthru inserts, and loadbreak elbows meeting global standards.

Key Features

1. Strict Quality Control Standards: Fully complies with the latest revision of the IEEE Std 386 standard for separable insulated connector systems, ensuring total field cross-brand intermateability.

2. Fluid-Filled Apparatus Compatibility: Formulated using advanced polymers proven to maintain total structural stability and zero swelling when fully submerged in transformer oil or bio-based Envirotemp FR3 fluids.

3. 100% Factory Quality Certification: Every production unit undergoes definitive quality screening including thorough physical inspection, periodic dissection, and non-destructive fluoroscopic X-ray analysis.