High Voltage Inc PFT-503CM 50kV AC Hipot Tester

Overview

The High Voltage Inc PFT-503CM is a 50kV AC hipot test set designed for field and repair shop high-voltage testing applications. With a 120V input and built-in capacitive compensation, it delivers 3kVA output power while drawing only 1kVA input, enabling reliable operation from standard mains. It is purpose-built for AC over-voltage withstand testing of electrical apparatus such as switchgear, circuit breakers, and transformers.

Key Features

• 0–50 kV AC continuously adjustable output voltage
• Dual-range kilovoltmeter for precise voltage measurement
• Output current meter for load monitoring
• Built-in capacitive compensation for efficient operation
• 3 kVA output power from 1 kVA input (120V mains)
• Zero start and external safety interlock provisions
• HV backup breaker and output overload relay (factory set at 120%)
• Output variac for fine voltage control
• Internally controlled compensation reactors
• Made in the USA

Applications

• High-voltage insulation integrity testing of electrical substations and overhead apparatus
• Switchgear and circuit breaker testing
• Testing automatic circuit reclosers (ACRs)
• Pole-top and pad-mounted transformer testing
• Motorized vacuum switch (MVS) and fault interrupter testing
• Bushing, fuse, and arrester testing
• Motor and insulator testing
• Applied voltage testing of rubber goods and personal protective equipment (PPE)