Industrial 9917D52H02 Voltage Transformer Primary

The Cutler Hammer/Westinghouse 9917D52H02 Voltage Transformer Primary is an industrial-grade primary component identified by the part number 9917D52H02. It carries a 4200 VAC rating and a 45 kV specification, reflecting its use in high-voltage electrical systems requiring voltage sensing or conditioning. This primary unit forms the high-voltage side of a voltage transformer assembly used in industrial installations to provide accurate voltage signals for metering, protection relays, or control equipment. With the Cutler Hammer/Westinghouse designation, it aligns with established standards for reliability in demanding environments typical of electrical distribution infrastructure. Typical use cases include high-voltage distribution networks, testing and calibration facilities, and electrical maintenance environments where accurate voltage sensing is required. As a primary element, this device is designed to be paired with a matching secondary pathway within a voltage transformer setup to enable voltage measurement and monitoring in power systems.