ZX-1200: High-Performance Relay Protection Tester

In modern power systems, the performance of relay protection devices is critical to maintaining grid stability, preventing equipment damage, and ensuring uninterrupted power supply. Accurate, efficient testing of these protection systems demands advanced, reliable test equipment—and the ZX-1200 Microcomputer Relay Protection Tester stands out as a robust solution tailored to meet the evolving needs of power industry professionals.

Core Technology: DSP-Controlled Precision Output

At the heart of the ZX-1200 lies a Digital Signal Processor (DSP)-controlled output system, which delivers significant advantages over traditional test equipment. The DSP architecture enables ultra-fast operation, strong real-time digital signal processing, wide transmission bandwidth, and high-resolution D/A conversion. These capabilities translate to output waveforms with exceptional precision, minimal distortion, and excellent linearity—ensuring test signals replicate real-world power system conditions with high fidelity.

Complementing its advanced processing core, the ZX-1200 is built with high-quality precision components and specialized structural design. The result is a compact, lightweight unit that is fully functional and easy to transport, with the ability to begin operation immediately upon power-up. This makes it ideal for field flow tests, where portability and quick setup are essential.

Key Functional Features

The ZX-1200 is engineered with user-centric features to support comprehensive relay protection testing:

Flexible Voltage and Current Output Combinations: Adaptable configurations to match diverse testing scenarios, from single-phase to multi-phase relay systems.

Versatile Operation Modes: Supports various test protocols to accommodate different relay types and application scenarios.

New Hi-Fi Linear Power Amplifier: Delivers clean, stable power output to maintain signal integrity during testing.

High Performance: Optimized for speed, accuracy, and reliability, even in demanding field environments.

Powerful Software Functions: Intuitive, feature-rich software supports automated testing, data analysis, and test report generation.

Independent DC Power Output: Dedicated DC power channels to power auxiliary devices or test DC-powered relays.

Comprehensive Interfaces: Complete input/output interfaces for seamless integration with different relay types and test setups.

Perfect Self-Protection Function: Built-in safeguards against overvoltage, overcurrent, and operational faults to protect both the tester and connected devices.

Comprehensive Technical Specifications

The ZX-1200’s specifications are designed to meet the rigorous demands of power system testing:

Channel Configuration: Standard six-phase current and six-phase voltage channels, enabling full simulation of three-phase power system conditions.

AC Current Output:

Per-phase range: 0–30A (0.1 grade precision); up to 180A with six-phase parallel connection

Long-term allowable current: 10A per phase; maximum output power: 450VA per phase (1000VA for six-phase parallel)

Frequency range (fundamental wave): 0–1000Hz; harmonic order support: 0–20

DC Current Output: 0–±10A per phase (0.2 grade precision), with a maximum load voltage of 20V.

AC Voltage Output:

Phase voltage: 0–120V (0.1 grade precision); line voltage: 0–240V

Output power: 80VA (phase) / 100VA (line); frequency range: 0–1000Hz, with 0–20 harmonic order support

DC Voltage Output: Phase voltage range 0–±160V (0.2 grade precision); line voltage up to ±320V, with output power of 70VA (phase) / 140VA (line).

Input/Output Interfaces: 8 input channels (supporting free contact (1–20mA, 24V) and electric potential contacts (“0”: 0–+6V; “1”: +11V–+250V)) and 4 output channels (DC: 220V / 0.2A; AC: 220V / 0.5A).

Time Measurement: Range from 0.1ms to 9999s, with accuracy better than 0.1ms, ensuring precise timing of relay operation.

Conclusion

The ZX-1200 Microcomputer Relay Protection Tester combines cutting-edge DSP technology, robust design, and comprehensive features to deliver a reliable, high-performance solution for relay protection testing. Its portability, precision, and versatility make it an invaluable tool for power utilities, maintenance teams, and testing laboratories, helping to ensure the safety and reliability of power systems worldwide.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/