The KDJB-430A is a lightweight, high-performance relay protection tester that combines advanced power electronics with high-fidelity linear amplifiers in an ultra-compact form factor. Featuring a 10.5-inch HD touchscreen, dual-core DSP processing, and robust AC/DC output capabilities, it delivers laboratory-grade accuracy for on-site testing of protective relays—ideal for field engineers seeking portability without compromise.
The KDHL-SH Series Three-Phase Intelligent Loop Resistance Tester is a high-precision, high-current instrument designed for measuring contact resistance in circuit breakers, disconnect switches, busbars, cable joints, and welding seams. Built with advanced switching power supply technology and precision electronics, it delivers stable DC current compliant with national standard GB736. Compact, lightweight, and highly immune to electromagnetic interference, it ensures accurate, reliable, and efficient resistance testing in both lab and field environments.
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.
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.
