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20kHz Sampling Rate On-load Tap Changer Tester| XHYZ1668

Name: 20kHz Sampling Rate On-load Tap Changer Tester| XHYZ1668
Brand: Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
SKU: XHYZ1668
Price: 4,115.00 USD
Availability: InStock

Product Details:

Place of Origin:	Xi'an Shaanxi China
Brand Name:	XZH TEST
Certification:	ISO CE
Model Number:	XHYZ1668

Detail Information

Place of Origin:

Xi'an Shaanxi China

Brand Name:

XZH TEST

Certification:

ISO CE

Model Number:

XHYZ1668

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20kHz Sampling Rate On-load tap changer tester

High Precision Transformer Tester

Portable Design Tap Changer Tester

Trading Information

Minimum Order Quantity:

1 unit

Price:

Negotiable

Packaging Details:

wooden packaging

Delivery Time:

5-8 work days

Payment Terms:

T/T

Supply Ability:

3000unit/year

Product Description

XHYZ1668 On-Load Tap-Changer Tester is a field-proven diagnostic instrument designed for comprehensive evaluation of transformer on-load tap-changers (OLTC). Engineered with advanced intelligent functions and a complete English menu system, it enables on-site personnel to operate with ease even with minimal training. Its compact structure, lightweight build, and excellent anti-interference capability effectively reduce physical burden during field testing. Widely recognized as a trusted choice for power generation and distribution enterprises as well as transformer manufacturers, this instrument plays a critical role in safeguarding safe production and elevating product quality.

Technical Specifications

Parameter	Specification
Output Current	1.0A / 0.5A (Selectable)
Transition Resistance Range	0.3Ω–20Ω (1.0A) \| 5Ω–40Ω (0.5A)
Transition Time Range	0–320 ms
Open Circuit Voltage	24V
Resistance Accuracy	±(5% of reading ± 0.1Ω)
Time Accuracy	±(0.1% of reading ± 0.2ms)
Sampling Rate	20 kHz
Storage Capacity	500 sets of data (built-in)
Display	7-inch high-brightness LCD
Dimensions (Main Unit)	360 × 290 × 170 mm
Dimensions (Cable Package)	360 × 230 × 290 mm
Weight (Main Unit)	6.15 kg
Test Cable Length	Standard 13 m (customizable)

Operating Conditions

Parameter	Specification
Ambient Temperature	-10℃ to +50℃
Relative Humidity	≤ 85% RH
Working Power Supply	AC 220V ± 10%
Power Frequency	50 ± 1 Hz

Key Performance Features

High Output Current, Lightweight Build — Delivers up to 1.0A test current with YN, Y, and Δ type transformer compatibility; resistance values displayed directly without manual conversion.

Dual Testing Modes — Supports both with-winding and without-winding measurement, adapting to diverse field scenarios and transformer configurations.

Adaptive Waveform Display — Automatically adjusts resistance, time, and amplitude axes based on sampled values for optimal waveform visualization and analysis.

Comprehensive Protection Circuit — Built-in safeguards ensure stable, reliable operation under demanding field conditions and electrical environments.

7-Inch High-Brightness LCD — Large, clear display for convenient waveform analysis even in outdoor or poorly lit environments.

500-Set On-Board Storage — Automatic data logging with quick retrieval and on-site thermal printing for immediate documentation.

Product Image

XHYZ1688

Field Troubleshooting Guide

Issue 1: CPU Board Failure Waveform
The waveform shown below may indicate a CPU board malfunction.
Solution: Replace the CPU board.

CPU Board Failure Waveform

Issue 2: Instrument Self-Oscillation Waveform
The waveform shown below may appear due to instrument self-oscillation.
Solution: After the sample is fully discharged, test in the 1-n direction, ensuring that the non-tested windings are properly short-circuited and grounded. Adjust the instrument’s sensitivity or trigger level if necessary.

Self-Oscillation Waveform

Frequently Asked Questions

Q1: Is this tester suitable for municipal power distribution grid maintenance?

Yes, the XHYZ1668 is an excellent fit for municipal power distribution networks where OLTC-equipped transformers are deployed across urban and suburban substations. Its 20kHz sampling rate provides high-resolution waveform capture for precise diagnostics, while the straightforward English menu system allows municipal utility crews to operate it efficiently without specialized training. The built-in 500-set storage supports systematic condition-based maintenance programs across distributed substation assets.

Q2: Can this device handle routine transformer diagnostics in industrial manufacturing plants?

Absolutely. Industrial facilities with arc furnaces, large motor drives, and heavy production loads subject transformers to frequent tap changes and electrical stress. The XHYZ1668’s dual testing modes (with-winding and without-winding) provide flexibility for both scheduled shutdown diagnostics and opportunistic testing during production pauses. Its anti-interference design ensures accurate measurements even in electrically noisy factory environments.

Q3: Is it suitable for oil and gas pipeline pumping station transformers?

Yes. Pipeline pumping stations operate in remote, often harsh environments where transformer reliability is critical to uninterrupted flow. The XHYZ1668’s compact 360×290×170 mm main unit and 6.15 kg weight make it easily transportable to isolated pumping stations. Its wide operating temperature range (-10℃ to +50℃) and field-ready troubleshooting guide with visual waveform references enable rapid on-site diagnostics without needing to return equipment to a central workshop.

Q4: Can it be used for hydroelectric power station transformer maintenance?

Hydroelectric stations present unique challenges with high humidity and variable generation schedules. The XHYZ1668 operates reliably at up to 85% RH and includes a comprehensive protection circuit that guards against moisture-related electrical issues. Its ability to test YN, Y, and Δ type transformers with direct resistance readout (no manual conversion) simplifies testing of the diverse transformer configurations commonly found in hydro facilities.

Q5: Is this tester appropriate for hospital and university campus power system maintenance?

Institutional campuses with dedicated medium-voltage distribution and on-site transformers require reliable OLTC testing to prevent unplanned outages. The XHYZ1668’s intuitive operation, thermal printer for immediate documentation, and 500-set storage for trend analysis make it ideal for campus facility management teams who need auditable maintenance records. Its lightweight portable design allows a single technician to move between multiple transformer locations across sprawling campus grounds.

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On-Load Tap Changer Waveform and Transition Resistance Tester with 7-inch LCD for YN, Y and Delta Transformers | XHYZ1668

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