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Transformer Winding Deformation Tester SFRA Sweep Frequency Response Analyzer DDS Automatic Diagnostic System

Name: Transformer Winding Deformation Tester SFRA Sweep Frequency Response Analyzer DDS Automatic Diagnostic System
Brand: Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
SKU: XHBX1502
Price: 4,115.00 USD
Availability: InStock

Product Details:

Place of Origin:	Xi'an, Shaanxi, China
Brand Name:	XZH TEST
Certification:	CE ISO
Model Number:	XHBX1502

Detail Information

Place of Origin:

Xi'an, Shaanxi, China

Brand Name:

XZH TEST

Certification:

CE ISO

Model Number:

XHBX1502

Highlight:

High Light

Highlight:

Transformer Winding Deformation Tester SFRA

DDS High-Speed Frequency Sweep Analyzer

Automatic Winding Fault Diagnostic System

Trading Information

Minimum Order Quantity:

1unit

Price:

Negotiable

Packaging Details:

wooden packaging

Delivery Time:

5-8work days

Payment Terms:

T/T

Supply Ability:

500 units per month

Product Description

Product Overview

XHBX1502 — Transformer Winding Deformation Tester (SFRA)

DDS Digital High-Speed Sweep • Automatic Diagnosis • USB + Bluetooth Connectivity

The XHBX1502 is a professional transformer winding deformation diagnostic instrument utilizing the Frequency Response Analysis (FRA) method, a globally recognized technique for non-intrusive internal transformer condition assessment. By measuring the characteristic parameters of transformer internal windings across a broad frequency spectrum, the instrument quantifies response changes to accurately detect and classify winding faults. The system employs DDS (Direct Digital Synthesis) digital high-speed frequency sweeping technology with a dual-channel 16-bit A/D sampling system, delivering laboratory-grade precision in a portable field instrument. Compatible with both linear and segmented sweep measurement modes, it fully conforms to the power industry standard DL/T911-2004.

Key Features

DDS Digital High-Speed Sweep: Advanced Direct Digital Synthesis (USA) technology ensures precise, stable frequency generation across the full 10Hz–10MHz range with 40,000 sweep points and 0.01% scanning accuracy.
Dual Measurement System: Supports both linear sweep frequency measurement and segmented sweep frequency measurement, compatible with domestic and international measurement protocols and user preferences.
Dual-Channel 16-bit A/D Sampling: High-resolution synchronous acquisition clearly captures waveform changes during tap-changer operation in field testing.
Comprehensive Fault Detection: Accurately diagnoses twisting, bulging, displacement, tilting, inter-turn short-circuit deformation, and phase-to-phase contact short-circuit faults.
Automatic Data Analysis: Built-in intelligent analysis software performs horizontal comparison (A/B/C phase winding similarity) and longitudinal comparison (historical data vs. current measurement), classifying results into four diagnostic grades.
One-Click Report Generation: Automatically generates professional Word e-documents with analysis results, amplitude-frequency curves, and diagnostic conclusions for archiving and printing.
Dual Connectivity: Standard USB communication between laptop and instrument, with optional wireless Bluetooth connectivity for convenient field operation.
Flexible Display: Amplitude-frequency characteristics with linear and logarithmic frequency axis options, allowing users to print curves in preferred indexing format.
Software-Adjustable Output: Signal output amplitude adjustable via software, peak amplitude ±20V, with 50Ω output impedance for optimal signal integrity.

Technical Specifications

Parameter	Specification
Linear Sweep Range	10Hz – 10MHz, 40,000 sweep points; resolutions: 0.25kHz, 0.5kHz, 1kHz
Segmented Sweep Range	0.5kHz–1MHz, 2,000 sweep points (5 sub-bands: 0.5–10kHz / 10–100kHz / 100–500kHz / 500–1,000kHz)
Amplitude Test Range	-120dB to +20dB
Amplitude Accuracy	0.1dB
Scanning Frequency Accuracy	0.01%
Signal Input Impedance	1MΩ
Signal Output Impedance	50Ω
Signal Output Amplitude	±20V (software adjustable)
In-Phase Test Repeatability	99.9%
Instrument Dimensions	300 × 340 × 120 mm
Aluminum Case Dimensions	310 × 400 × 330 mm
Connectivity	USB (standard) + Wireless Bluetooth (optional)
Compliance Standard	DL/T911-2004 — Frequency Response Analysis Method for Power Transformer Winding Deformation

Diagnostic Analysis System

The XHBX1502 features a comprehensive automatic data analysis system that performs two independent comparative analyses:

Horizontal Comparison (Inter-Phase Analysis)

A vs. B vs. C Phase Winding Similarity Assessment

Compares the frequency response characteristics across all three phases of the same transformer to detect asymmetric winding conditions. The system automatically analyzes amplitude-frequency curve correlations between phases and classifies consistency into four grades: Very Good (pass), Good (minor deviation), Poor (significant deviation — recommend investigation), and Very Poor (severe deviation — immediate attention required).

Longitudinal Comparison (Time-Series Analysis)

Historical Baseline vs. Current Measurement — Same Phase Tracking

Compares the current frequency response measurement against the original factory or commissioning baseline data for each individual phase (A-A, B-B, C-C). This time-series approach detects progressive winding degradation that may not appear in inter-phase comparison. The system classifies winding condition into four diagnostic grades: Normal (no detectable change), Mild Deformation (minor shift — schedule monitoring), Moderate Deformation (notable change — plan maintenance), and Severe Deformation (critical change — immediate overhaul recommended).

Testing Workflow

Instrument Setup & ConnectionConnect the XHBX1502 to the transformer under test via USB or Bluetooth to the laptop. Ensure all safety protocols are followed for de-energized transformer testing.
Parameter ConfigurationSelect sweep mode (linear or segmented), frequency range, and resolution settings based on the transformer type and test requirements. The software provides preset configurations for common transformer ratings.
Frequency Sweep MeasurementInitiate the DDS sweep across the configured frequency range. The dual-channel 16-bit A/D converter simultaneously captures excitation and response signals with 99.9% in-phase repeatability.
Automatic Data AnalysisThe software automatically processes the captured data, performing both horizontal (inter-phase) and longitudinal (time-series) comparison analyses against stored baseline data.
Report Generation & ArchivingReview the diagnostic results and generate a professional Word e-document containing amplitude-frequency curves, comparison tables, and diagnostic conclusions for immediate printing or digital archiving.

Applications

•Power Utility Transformer Maintenance: Routine condition assessment of power transformers in substations, transmission networks, and distribution systems — non-intrusive SFRA testing avoids costly oil sampling and internal inspection.

•Post-Fault Diagnostic Investigation: Rapid post-event assessment of transformers suspected of internal damage following through-fault events, short circuits, or transportation incidents — compare against baseline data to determine damage extent.

•Factory Acceptance & Commissioning Testing: Establish baseline frequency response signatures for new transformers prior to installation, enabling accurate longitudinal comparison throughout the transformer service life.

•Industrial & Renewable Energy Sites: On-site diagnostics for transformers in power plants, wind farms, solar installations, and heavy industrial facilities where transformer reliability directly impacts production continuity.

Frequently Asked Questions

Q1: How does the SFRA method detect transformer winding deformation?

The Sweep Frequency Response Analysis (SFRA) method measures the transfer function of transformer windings across a wide frequency range (10Hz–10MHz). Each transformer winding has a unique frequency response "fingerprint" determined by its distributed RLC network. When mechanical deformation occurs — such as winding displacement, buckling, or inter-turn short circuits — the distributed capacitance and inductance values change, producing measurable deviations in the frequency response curve compared to the baseline. The XHBX1502 quantifies these deviations and automatically classifies the severity.

Q2: What is the difference between linear and segmented sweep measurement?

The XHBX1502 supports two measurement modes. Linear sweep covers the entire 10Hz–10MHz range with uniform frequency steps (up to 40,000 points at 0.25kHz resolution), providing maximum detail across the full spectrum — ideal for comprehensive baseline establishment and critical diagnostic investigations. Segmented sweep divides the frequency range into five sub-bands (0.5–1,000kHz) with optimized resolution per band, totaling 2,000 points — suitable for routine maintenance screening where measurement time is a priority. Users can select the mode that best fits their testing protocol.

Q3: Can the instrument generate professional test reports?

Yes. The XHBX1502 includes a built-in automatic report generation system that creates complete Word e-documents with one click. Each report includes the amplitude-frequency response curves (both magnitude and phase), horizontal and longitudinal comparison analysis results, diagnostic classifications, and test condition metadata. Reports can be immediately printed, saved digitally, or shared via USB for compliance documentation and client deliverables.

Q4: What connectivity options are available for field testing?

The instrument provides dual connectivity: standard USB communication for reliable wired connection between the laptop and instrument, and optional wireless Bluetooth for cable-free field operation. Both interfaces support full instrument control, real-time data acquisition, and waveform display. The Bluetooth option is particularly valuable in substation environments where cable management around high-voltage equipment can be challenging.

Q5: What standards does the XHBX1502 comply with and what is the ordering process?

The XHBX1502 fully complies with the Chinese power industry standard DL/T911-2004 "Frequency Response Analysis Method for Winding Deformation of Power Transformers" and aligns with international SFRA testing practices (IEC 60076-18 methodology). Standard delivery time is 5–8 working days after order confirmation. Each instrument is packed in a reinforced aluminum alloy case (310×400×330mm) with internal foam cushioning. XZH TEST provides manufacturer warranty, with minimum order quantity of 1 unit and T/T payment terms.

Tags:

Transformer Winding Deformation Tester SFRA Sweep Frequency Response Analyzer DDS Automatic Diagnostic System

High Light

Highlight:

Transformer Winding Deformation Tester SFRA

DDS High-Speed Frequency Sweep Analyzer

Automatic Winding Fault Diagnostic System

XHBX1502 — Transformer Winding Deformation Tester (SFRA)

Horizontal Comparison (Inter-Phase Analysis)

Longitudinal Comparison (Time-Series Analysis)

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DC winding resistance tester,

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