SX series Test Transformer Digital Display Operation Box/Console

Product Introduction

The SX series test transformer digital display operating box/console is a supporting control device specifically designed for test transformers and high-voltage electrical test systems. The equipment features digital display and a new type of high-precision current relay, enabling real-time monitoring of parameters such as voltage, current, zero position, contactor status, and timing status during testing. It also integrates overcurrent protection and timing control functions.

الoperating box offers smooth output regulation, easy operation, and comprehensive protection functions. It can be used together with test transformers, voltage regulators, and other equipment, and is suitable for high-voltage tests such as power-frequency withstand voltage and insulation performance testing of power systems and related electrical equipment.

Product functions

1. Precise voltage regulation function

Output voltage continuously adjustable from 0 to 250V AC

Provides stable adjustable input voltage for the test transformer

Enables smooth voltage rise and fall control during testing

2. Voltage and current monitoring

Real-time display of voltage and current parameters during testing

Meter voltage range: 100V / 100kV

Uses high-precision current relay, allowing operators to monitor test status in real time

3. Overcurrent protection function

Triggers protection when test current exceeds the set value

Prevents damage to the test transformer and equipment under test caused by excessive current

Enhances safety during high-voltage testing

4. Timing control function

Supports test time setting

Timing range: 1 second to 99 hours

Can perform corresponding control when the set time is reached, improving test automation

5. Zero-position and safety control function

Monitors the zero-position status of the voltage regulator

Ensures the equipment is at a safe zero-voltage position during startup

Works with contactor control and protection systems to reduce risks caused by misoperation and equipment abnormalities

المعايير الفنية

مواصفات المنتج

1.Monitoring: Output current, instrument voltage, zero position, contactor status (open/close), and timer status.

5.Compact Design: Engineered for space efficiency with a small footprint and lightweight construction.

Product advantages

Comprehensive safety protection: Features overcurrent protection, zero-position protection, and contactor control, enhancing the safety of high-voltage testing.

Digital precision monitoring: Real-time display of key parameters such as voltage and current, making test status more intuitive.

Stable and precise voltage regulation: Supports continuous voltage regulation with smooth voltage rise and fall, meeting different high-voltage testing requirements.

Convenient and efficient operation: Integrates voltage regulation, measurement, protection, and timing functions, reducing manual operations.

Compact, portable, and widely applicable: Small in size and easy to transport, suitable for testing transformers, instrument transformers, cables, surge arresters, and other high-voltage equipment.

Comparison with Other control consoles and cabinets

Application Scenarios

1. High-voltage testing in power systems

Used for withstand voltage and insulation testing of high-voltage equipment in substations, power plants, and transmission and distribution systems.

2. Substation on-site testing

Performs power-frequency withstand voltage testing and insulation performance testing on high-voltage electrical equipment during installation, maintenance, and before commissioning at substations.

3. Electrical equipment manufacturers

Suitable for factory inspection and quality testing at power equipment manufacturing enterprises, serving as supporting control equipment for test transformers.

4. On-site handover testing of power equipment

After new equipment installation is completed, the operating box controls the test transformer for handover testing, used to verify whether the equipment meets operational requirements.

5. Cable withstand voltage testing

Used together with a high-voltage test transformer for AC withstand voltage testing on power cables, control cables, and other cables, checking cable insulation performance.

6. Laboratories and testing organizations

Suitable for power research institutes, third-party testing organizations, high-voltage laboratories, and university laboratories for high-voltage testing and research on various electrical equipment.

7. Electrical equipment maintenance and servicing

During routine maintenance, fault diagnosis, or after major overhauls, checks equipment insulation condition through withstand voltage testing, reducing the risk of faults after equipment is returned to service.

FAQ

Q: What types of high-voltage test projects is this device suitable for?

A: It is mainly suitable for power-frequency withstand voltage testing, insulation performance testing, and test transformer supporting tests. It can be applied to high-voltage testing of electrical equipment such as transformers, switchgear, cables, instrument transformers, and insulators.

Q: How to select the appropriate operating box specification?

A: The selection is mainly based on the test transformer capacity, input voltage, output voltage, test current, and specific test items. If the technical parameters of the test transformer are provided, we can further match the appropriate operating box specification.

Q: Can the device be used as a control unit for test transformers?

A: Yes. The SX series operating box is mainly used as a supporting control unit for test transformers, providing functions such as input voltage regulation, parameter monitoring, test timing, and protection control.

Q:How does the temperature rise test work? 

A:The SX series operating box manufacturer supplies a controlled high current to the test specimen. As current flows through the specimen, heat is generated at conductive and contact points. Temperature sensors are installed at specified measurement locations. The system continuously collects temperature data and monitors the temperature rise during the test. After the preset test duration is reached, the system can automatically reduce the output current and stop the test.

Precautions

1. During use, the test transformer digital display operation box/console manufactures should be reliably grounded.

2. The process of boosting and lowering should be carried out at a constant speed, without sudden acceleration or deceleration.

3. During the experiment, monitoring instruments should be observed at all times to promptly detect any unexpected situations.

4. During use, please handle the equipment gently and keep it clean and hygienic.

When choosing testing equipment, brand reputation, supplier reliability, and price are important factors. Wuhan Ultra High Voltage Power Company is a trusted supplier of high-voltage power testing equipment, serving State Grid, China Southern Power Grid, and major electrical manufacturers. We provide not only reliable equipment at competitive prices, but also complete testing solutions, including system design, on-site commissioning, training, and after-sales service. With Wuhan UHV, you can buy with confidence and use our equipment with peace of mind.