
The KDJB-1200Y is a high-precision, six-phase relay protection tester designed for comprehensive testing of power system protection devices. It delivers flexible voltage and current outputs with excellent accuracy and stability, supporting a wide range of test scenarios including overcurrent, impedance, and transient fault simulations. Equipped with advanced DSP technology, a high-fidelity linear amplifier, and multiple digital interfaces, it ensures reliable, efficient, and automated protection system calibration. Compact and portable, it's ideal for field and laboratory use in power systems.
Product Description: Portable Relay Protection Tester The Portable Relay Protection Tester is a high-precision, handheld test instrument designed for comprehensive field verification of relay protection systems, intelligent electronic devices (IEDs), and automation equipment in power systems. Combining advanced digital signal processing, high-resolution output, and an intuitive interface, this compact yet powerful tester delivers laboratory-grade accuracy in a rugged, portable form factor—perfect for on-site commissioning, maintenance, and troubleshooting. Equipped with multi-channel programmable AC voltage and current sources, precise phase and frequency control, built-in battery power, and a full suite of dedicated test modules, it supports a wide range of protection relay testing scenarios—from basic manual tests to complex multi-state fault simulations.
The KDJB-1200Y is a high-performance, six-phase relay protection tester engineered for comprehensive validation of modern protective relays and automation systems. Featuring six independent AC/DC current and voltage sources, ultra-fast switch outputs, and an integrated industrial PC, it supports complex tests—including differential protection, auto-transfer (ATS), distance relays, and transient fault simulations—with lab-grade accuracy in a portable 19 kg field-ready unit.