In the dynamic field of power system protection, ensuring the reliability and accuracy of relay devices is paramount. The ZX-803 Three-Phase Relay Protection Test System emerges as a cutting-edge tool designed to address the complex testing requirements of modern electrical protection systems. With its advanced architecture, high precision, and versatile functionality, the ZX-803 is engineered to validate and calibrate a wide range of relays, including current, voltage, directional, differential, frequency, and microprocessor-based protections, while simulating transient and transitional faults for comprehensive system evaluations.
Key Features
1.Flexible Voltage-Current Output Configurations
The ZX-803 offers a standard 4-phase voltage and 3-phase current output, supporting diverse combinations to accommodate various protection schemes. Each phase voltage delivers up to 120V, while the three-phase current output reaches 120A in parallel mode. The fourth voltage channel, Ux, is programmable for 3U0, synchronization checks, or user-defined values, enhancing adaptability in complex testing scenarios.
2.Dual Operational Modes
Equipped with an integrated touchpad, ergonomic keyboard, and a high-resolution TFT display running a native Windows-based interface, the device supports standalone operation. Simultaneously, it seamlessly interfaces with external PCs or laptops, ensuring compatibility with advanced automation workflows.
3.High-Fidelity Linear Power Amplifier
Unlike conventional switching amplifiers, the ZX-803 employs a linear amplification system to guarantee distortion-free waveforms across all output ranges—from milliampere-level sensitivity tests to high-current fault simulations. This design eliminates high-frequency interference, ensuring precision even in noise-prone environments.
4.Advanced DSP-Driven Performance
A dedicated digital signal processor (DSP) ensures rapid computation, high-resolution D/A conversion, and real-time waveform control. This results in exceptional output accuracy (<0.2% for AC/DC primary ranges), minimal harmonic distortion, and seamless frequency adjustments (0–1200 Hz with 0.001 Hz resolution).
5.Robust Software Suite
The embedded software supports automated testing, fault playback, protection characteristic scans, and real-time data logging. Features such as vector diagrams, report generation, and compatibility with external printers streamline complex validation tasks.
6.Integrated Auxiliary Power Supply
A dedicated adjustable DC output (110V/220V, 1.5A) eliminates the need for external sources during relay commissioning or circuit breaker testing.
7.Enhanced Connectivity and Safety
With 8 programmable input contacts (compatible with dry contacts or 0–250V signals) and 4 output relays, the ZX-803 accommodates multi-device coordination studies. Additional interfaces, including USB, RS232, and mouse/keyboard ports, ensure seamless integration into test environments. Comprehensive hardware and software safeguards, including thermal management and fault diagnostics, ensure operational reliability.
Technical Specifications
1.AC Current Output: 3×40A (450VA per phase), 120A (1000VA in parallel)
2.AC Voltage Output: 4×120V (80VA per phase), 240V line-to-line (120VA)
3.DC Current Output: 3×±10A (200VA)
4.DC Voltage Output: 3×±160V (80VA)
5.Accuracy: 0.2% (AC), 0.5% (DC)
6.Phase Control: 0–360° (±0.2° resolution)
7.Harmonic Injection: Up to 24th order
8.Dimensions: 396×354×178 mm | Weight: 16 kg
Applications
The ZX-803 is indispensable for utility substations, industrial power networks, and protection device manufacturers. Its portability and all-in-one design make it ideal for field testing of distance relays, differential relays, frequency relays, and synchronization schemes, as well as full-scale system commissioning.
Conclusion
Combining precision engineering, user-centric design, and robust computational power, the ZX-803 Three-Phase Relay Protection Test System redefines efficiency in protection device validation. Its ability to simulate intricate fault conditions, coupled with unmatched waveform fidelity and operational flexibility, positions it as an essential tool for ensuring the resilience of modern power infrastructure. Whether deployed in laboratories or on-site, the ZX-8093 delivers unmatched performance in a compact, reliable package.
In the dynamic field of power system protection, ensuring the reliability and accuracy of relay devices is paramount. The ZX-803 Three-Phase Relay Protection Test System emerges as a cutting-edge tool designed to address the complex testing requirements of modern electrical protection systems. With its advanced architecture, high precision, and versatile functionality, the ZX-803 is engineered to validate and calibrate a wide range of relays, including current, voltage, directional, differential, frequency, and microprocessor-based protections, while simulating transient and transitional faults for comprehensive system evaluations.
Key Features
1.Flexible Voltage-Current Output Configurations
The ZX-803 offers a standard 4-phase voltage and 3-phase current output, supporting diverse combinations to accommodate various protection schemes. Each phase voltage delivers up to 120V, while the three-phase current output reaches 120A in parallel mode. The fourth voltage channel, Ux, is programmable for 3U0, synchronization checks, or user-defined values, enhancing adaptability in complex testing scenarios.
2.Dual Operational Modes
Equipped with an integrated touchpad, ergonomic keyboard, and a high-resolution TFT display running a native Windows-based interface, the device supports standalone operation. Simultaneously, it seamlessly interfaces with external PCs or laptops, ensuring compatibility with advanced automation workflows.
3.High-Fidelity Linear Power Amplifier
Unlike conventional switching amplifiers, the ZX-803 employs a linear amplification system to guarantee distortion-free waveforms across all output ranges—from milliampere-level sensitivity tests to high-current fault simulations. This design eliminates high-frequency interference, ensuring precision even in noise-prone environments.
4.Advanced DSP-Driven Performance
A dedicated digital signal processor (DSP) ensures rapid computation, high-resolution D/A conversion, and real-time waveform control. This results in exceptional output accuracy (<0.2% for AC/DC primary ranges), minimal harmonic distortion, and seamless frequency adjustments (0–1200 Hz with 0.001 Hz resolution).
5.Robust Software Suite
The embedded software supports automated testing, fault playback, protection characteristic scans, and real-time data logging. Features such as vector diagrams, report generation, and compatibility with external printers streamline complex validation tasks.
6.Integrated Auxiliary Power Supply
A dedicated adjustable DC output (110V/220V, 1.5A) eliminates the need for external sources during relay commissioning or circuit breaker testing.
7.Enhanced Connectivity and Safety
With 8 programmable input contacts (compatible with dry contacts or 0–250V signals) and 4 output relays, the ZX-803 accommodates multi-device coordination studies. Additional interfaces, including USB, RS232, and mouse/keyboard ports, ensure seamless integration into test environments. Comprehensive hardware and software safeguards, including thermal management and fault diagnostics, ensure operational reliability.
Technical Specifications
1.AC Current Output: 3×40A (450VA per phase), 120A (1000VA in parallel)
2.AC Voltage Output: 4×120V (80VA per phase), 240V line-to-line (120VA)
3.DC Current Output: 3×±10A (200VA)
4.DC Voltage Output: 3×±160V (80VA)
5.Accuracy: 0.2% (AC), 0.5% (DC)
6.Phase Control: 0–360° (±0.2° resolution)
7.Harmonic Injection: Up to 24th order
8.Dimensions: 396×354×178 mm | Weight: 16 kg
Applications
The ZX-803 is indispensable for utility substations, industrial power networks, and protection device manufacturers. Its portability and all-in-one design make it ideal for field testing of distance relays, differential relays, frequency relays, and synchronization schemes, as well as full-scale system commissioning.Combining precision engineering, user-centric design, and robust computational power, the ZX-803 Three-Phase Relay Protection Test System redefines efficiency in protection device validation. Its ability to simulate intricate fault conditions, coupled with unmatched waveform fidelity and operational flexibility, positions it as an essential tool for ensuring the resilience of modern power infrastructure. Whether deployed in laboratories or on-site, the ZX-8093 delivers unmatched performance in a compact, reliable package.
GDZX is a manufacturer of power testing equipment, offering a wide range of product categories with comprehensive models and providing professional technical support. Contact: +86-17396104357.Website: https://www.highvoltage-testequipment.com/
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