Product Introduction
The MOEORW-WHFC is an integrated, heavy-duty High Frequency (HFCT) Partial Discharge Calibration Test Bench engineered for comprehensive performance verification, calibration, and routine testing of high-frequency PD detectors and online monitoring systems. Developed in strict adherence to rigorous grid and industry specifications (including equivalent benchmarks to global standards), this system evaluates critical metrics such as sensor transmission impedance, overall frequency response, sensitivity, linearity, anti-interference capability, and channel consistency.
By injecting precise, simulated partial discharge charges into the test loop, the MOEORW-WHFC ensures that field PD diagnostic instruments maintain absolute accuracy, consistency, and reliability before deployment in high-voltage assets.
Product Parameter (Specification)
The complete system framework comprises an integrated calibration workstation housing a high-speed pulse source, a wideband sine wave generator, a high-performance digital storage oscilloscope, and a centralized control PC running dedicated automation software.
I. Fast Pulse Generator Module
Functionality: Supports both positive and negative polarity pulse outputs.
Repetition Frequency: 25 Hz to 10 kHz.
Output Amplitude (into 50Ω load): -10 V to +10 V, continuously adjustable.
Resolution: ≤ 10 mV.
Pulse Rise Time (10% to 90%): ≤ 5 ns (ultra-fast edge).
Pulse Fall Time: ≥ 100 μs.
Pulse Width: ≥ 150 μs.
II. Wideband Sine Wave Signal Generator
Bandwidth: 120 MHz.
Sampling Rate: 1.2 GSa/s.
Channels: 2 independent channels.
Arbitrary Waveform Length: 8 pts to 8 Mpts.
Vertical Resolution: 16-bit.
Maximum Output Amplitude: ±10 V.
III. Digital Storage Oscilloscope (Embedded)
Analog Bandwidth: ≥ 200 MHz.
Real-time Sampling Rate: ≥ 2 GSa/s.
Memory Depth: Interleaved mode: 28 Mpts/CH; Non-interleaved mode: 14 Mpts/CH.
Channels: ≥ 2 Channels.
Product Feature
Comprehensive Calibration Matrix: Evaluates 6 core parameters of HF-PD instrumentation: Sensor Transmission Impedance, System Frequency Response, System Sensitivity, Linearity, Anti-Interference performance, and Multi-Channel Consistency.
Dual-Standard Testing Software: Features pre-configured software profiles aligning with Enterprise and General Industry specifications (such as grid-level compliance modes), allowing users to switch standards with a single click.
Fully Automated Test Sequences: The control PC automatically commands the signal excitation sources, syncs data readouts from the oscilloscope, and evaluates test results without manual step-by-step tweaking.
Multi-Channel Simulation Loop: Equipped with 3 built-in hardware testing circuits and a dedicated HF testing zone with 100pF/500pF injection capacitor switches to replicate multi-scenario field defects.
Automated Word Report Generation: Users can quickly create a digital report asset, input custom device-under-test (DUT) metadata, and export structured validation reports in .docx format directly to the desktop.
Product Application
The MOEORW-WHFC is universally used across high-voltage testing facilities to calibrate instruments tasked with online and offline PD diagnostics on:
High-Voltage Power Cables (using clamp-on or split-core HFCT sensors).
Power Transformers & Reactors.
Gas Insulated Switchgear (GIS) & Medium Voltage Switchgear.
Large Rotating Electrical Machines (Motors & Generators).
Third-Party Calibration Labs & Electrical Research Institutes.
System Components & Accessories
1x Integrated MOEORW-WHFC Calibration Workstation Cabinet (incorporating the main HF testing interface panel).
1x Embedded Digital Storage Oscilloscope (Pre-installed & Networked).
1x Wideband Sine Wave Signal Generator (Pre-installed & Networked).
1x High-Speed Fast Pulse Generator Module.
1x Industrial Central Control PC with pre-loaded Automated Calibration Software.
1x Set of High-Precision High-Impedance Oscilloscope Probes.
1x Set of 1-meter 50Ω Coaxial RF Signal Cables.
1x Printed Product Instruction & Calibration Software Manual.
FAQ
Q1: Does the system support manual data entry or is it fully automated?
A: It supports both. Through the control PC software, you can configure automatic frequency stepping (either stepping up or down at custom time intervals like 3 seconds). Alternatively, engineers can trigger single-pulse or manual point-by-point readouts for tailored R&D purposes.
Q2: What international standards does this system align with?
A: While pre-loaded with domestic grid compliance standards (Q/GDW 11304.5 and DL/T 2278), the fundamental electrical methodologies used-such as pulse current injection and transmission impedance derivation-fully align with international standards like IEC 60270 and IEEE guidelines for partial discharge measurement.
Q3: How do I toggle between different calibration testing standards?
A: Simply navigate to the software menu, select File -> Reference Standard, and choose your required standard profile. The user interface, frequency scaling limits, and calculation algorithms will dynamically update based on your selection.
Q4: What are the storage and environmental care requirements for this workstation?
A: To preserve the electronics, the station should be stored indoors in a well-ventilated, non-corrosive environment with a temperature range of -20°C to 60°C and relative humidity below 80%. In highly humid regions, it is recommended to power on the system at least once a month for ~2 hours to disperse internal moisture.
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