WESTINGHOUSE 1247219 BAL-PT-FUSE 15KV .5 AMP INT. RATING 130000 (I3)

Description:

The Westinghouse 1247219 BAL-PT-FUSE is a medium-voltage potential transformer (PT) fuse designed to provide primary-side overcurrent protection for instrument transformers, metering circuits, and protective relaying systems. Commonly installed in medium-voltage switchgear, substations, distribution systems, and metering compartments, this fuse helps protect potential transformers from fault currents while maintaining system reliability. The fuse features a 15 kV voltage rating, 0.5 Amp current rating, and a 130,000 A interrupting rating for high-fault-capacity applications.

Applications:

The Westinghouse 1247219 BAL-PT-FUSE is commonly used in medium-voltage electrical systems to protect potential transformers (PTs), voltage transformers (VTs), metering circuits, and protective relay circuits from overloads and short-circuit conditions. It is typically installed in utility substations, industrial power distribution systems, switchgear lineups, and electrical metering assemblies where dependable instrument transformer protection is required.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1247219
• Product Designation: BAL-PT-FUSE
• Product Type: Potential Transformer Fuse
• Voltage Rating: 15 kV
• Current Rating: 0.5 Amp
• Interrupting Rating: 130,000 A (130 kA)
• Frequency Rating: 50/60 Hz
• Fuse Class: Instrument Transformer / PT Protection Fuse
• Function: Potential transformer overcurrent protection
• Application: Medium-voltage metering and protective relaying systems
• System Compatibility: Potential transformers (PTs) and voltage transformers (VTs)
• Installation Type: Switchgear and metering compartment mounting
• Operating Environment: Industrial, commercial, and utility power systems
• Intended Use: PT and control power transformer protection
• Performance Feature: High interrupting capacity for medium-voltage instrument transformer circuits.

Common Replacements:

• Eaton PT Protection Fuse
• Bussmann Medium-Voltage PT Fuse
• S&C Instrument Transformer Protection Fuse