Table of Contents

Overview of Automatic Integrated Transformer Test Bench

This integrated automatic test bench integrates transformer performance testing units, precision current transformers, a medium-frequency power source, high-voltage test transformer and contactless three-phase voltage regulator. It automatically tests key transformer parameters such as no-load loss, load loss and impedance voltage with 0.05-class high measurement precision.

Supported by adjustable voltage, current and frequency output as well as stepless on-load voltage regulation, the system realizes automatic voltage stabilization via TWK control modules. Stable for long-time operation, this bench fits factory inspection, laboratory research and routine detection of transformers.

Product Features – Fully Automatic Integrated Transformer Comprehensive Test System

Fully Automatic & Manual Dual Operation Mode

This test system supports full computer control via mouse or touch screen, while reserving manual operation functions. All test data is automatically saved and uploaded to test reports. Original records can be quickly recalled by entering the data serial number. After users input transformer capacity and high/low voltage parameters, the system automatically selects and switches CT/VT gears, adjusts the voltage regulator speed, and stops precisely at rated voltage or current. It also features automatic data locking, report uploading, one-click report printing, and full automatic system reset after testing.

High-precision Full-data Monitoring System

Equipped with a self-developed high-precision power analyzer, the system displays all test parameters and vector diagrams on a single screen in accordance with international standards. Ensuring superior data accuracy, our power analyzer has been stably running for two years at the National Transformer Quality Inspection Center.

Multi-level Safety Protection Design

The system adopts combined software protection, hardware protection and system interlock protection. With a split structure and separated primary and secondary circuit design, it effectively protects operators and tested transformers, improving overall test safety and stability.

3P3W Test Principle with High-precision Transformers

Adopting the three-wattmeter (3P3W) testing principle and equipped with three independent 0.05-class single-phase transformers, the system realizes fully electric automatic gear shifting for both primary and secondary sides. It greatly improves test stability and measurement accuracy.

Variable-frequency Speed Regulation for Precise Voltage Control

Traditional inductive voltage regulators cause large mechanical inertia and unstable voltage control. Our unique variable-frequency speed regulation allows adjustable motor speed during voltage boosting, ensuring ultra-precise voltage control for no-load tests and power frequency withstand tests, and significantly improving test efficiency and data consistency.

Built-in 31st Harmonic Analysis Function

The integrated power analyzer supports up to 31st harmonic analysis, meeting advanced power quality testing requirements for transformer inspection and factory testing.

All-in-one Integrated Test Platform

This unified platform integrates all transformer test functions, including DC resistance test, turns ratio test, no-load & load loss test, power frequency withstand voltage test and induced withstand voltage test. Each module works independently and supports flexible combination with full automatic testing.

Simplified Installation & High System Reliability

The integrated structural design simplifies daily operation, on-site installation and commissioning. It reduces system failure rates and greatly improves the long-term operational reliability of the test bench.

Technical Parameters

Category	Specification
I. Transformer Test Parameters	5. Total three-phase power ( $P$ )
	6. No-load current ( $I_{0} %$ )
	7. No-load loss ( $P_{0}$ )
	8. Load loss ( $P_{K}$ )
	9. Impedance voltage ( $U_{K}$ )
	10. Three-phase individual power values: $P_{ab}$ , $P_{b}$ , $P_{c}$ ( $P_{b c}$ )
	11. Average three-phase voltage ( $U_{n}$ )
	12. Average three-phase current ( $I_{n}$ )
II. Precision Current Transformer Specifications	1. Rated operating voltage: 1 kV
	2. Withstand voltage: 3.5 kV
	3. Burden capacity: 1 VA
	4. Measuring range: 0.1 A ~ 220 A
	5. Accuracy class: 0.05
	6. Seven selectable transformation ratios: 200/1 A, 100/1 A, 50/1 A, 20/1 A, 10/1 A, 5/1 A, 2.5/1 A
III. Medium-Frequency Generator Set Specifications	1. Rated capacity: 30 kVA
	2. Output voltage range: 30 V ~ 800 V
	3. Rated output current: 21 A
	4. Output frequency: $150 Hz \pm 2%$
	5. Input voltage: 380 V
IV. Oil-Immersed AC Testing Transformer Specifications	1. Rated capacity: 20 kVA
	2. Rated high/low voltage: 50 kV / 0.6 kV
	3. Output current range: 0 ~ 0.4 A
	4. Input voltage range: 0 V ~ 500 V
	5. Input current range: 0 ~ 34 A
	6. Rated operating frequency: 50 Hz
V. TSJA-100 kVA Three-Phase Voltage Regulator Specifications	1. Input: three-phase 380 V; Output voltage range: 10 V ~ 650 V
	2. Maximum load current: 89 A
	3. Contactless voltage regulation design, easy to operate
	4. Reliable long-term operation; widely used in industrial & mining enterprises, agriculture and scientific research institutions as general-purpose voltage regulating equipment
	5. Stepless and smooth output voltage adjustment under loaded conditions with constant input voltage
	6. Automatic voltage regulation & stabilization when matched with TWK controller; designed for rated frequency of 50 Hz

Applications

This test bench is mainly adopted for factory ex-factory inspection, type test and routine maintenance test of various power transformers. It automatically completes the measurement of no-load loss, load loss, impedance voltage and other core electrical indicators.

Equipped with high-precision current sensing, adjustable medium-frequency power supply, high-voltage test device and contactless voltage regulating unit, it meets the testing demands of transformer manufacturers, power supply enterprises, industrial & mining units as well as scientific research institutions. The equipment supports on-load stepless voltage adjustment and automatic voltage stabilization, delivering accurate and efficient test data for product quality verification, performance analysis and equipment fault diagnosis of transformers.

FAQ | Automatic Integrated Transformer Test Bench

Q1: What main tests can this integrated transformer test bench perform?

A: It automatically measures transformer key parameters including total three-phase power, no-load current, no-load loss, load loss and impedance voltage. It also supports high voltage withstand test and variable voltage output calibration with matched supporting units.

Q2: What is the accuracy grade of the supporting current transformer?

A: Equipped with 0.05-class precision current transformers with 7 optional transformation ratios, the measurable current range covers 0.1 A to 220 A to ensure high-precision sampling during testing.

Q3: What are the adjustable ranges of the built-in power supply and voltage regulation components?

A: The 30 kVA medium-frequency unit outputs 30–800 V & 150 Hz±2% power; the 20 kVA oil-immersed test transformer provides up to 50 kV high voltage; the TSJA-100 kVA regulator outputs 10–650 V stepless adjustable three-phase voltage under load.

Q4: Does the voltage regulator support automatic voltage stabilization?

A: Yes. Matched with the TWK control system, the contactless three-phase regulator realizes automatic voltage regulation and stable output voltage even under loaded working conditions.

Q5: What scenarios is this test bench suitable for?

A: Widely used for transformer factory delivery inspection, type test, routine maintenance detection, together with electrical experiment tasks for power companies, mining factories, agricultural departments and research laboratories.

Q6: What is the rated working frequency of the whole bench system?

A: The system is designed for standard 50 Hz power frequency operation with stable long-term continuous running performance.

Q7: Is the bench capable of continuous long-hour testing work?

A: The whole set adopts reliable industrial-grade hardware structure, supporting long-period stable operation to meet mass batch testing demands of transformer manufacturers.

Reviews

There are no reviews yet.

Be the first to review “HF-TC-613 Automatic Integrated Transformer Test Bench”

Leave your message

HF-TC-613 Automatic Integrated Transformer Test Bench