Digital Transformer on Load Tap Changer Equipment on-Load Switch Tap-Changer Tester

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: KDKC-2020
• Time Measurement Range: 1ms~300ms
• Customized Support: OEM, ODM, Obm, Software Reengineering
• Maximum Voltage of The Port: 24V
• Time Resolution: 0.1ms
• Three Independent Testing Power Sources: 3A/1A Level; 0.6A/0.2A Gear
• Resistance Measurement Range: 0.3-40 Ω
• Instrument Setting Sampling Rate: 10-30kHz
• Resistance Resolution: 0.1 Ω
• Transition Resistance Range: 100 Ω
• Accuracy: Transition Resistance: ± 5% Reading ± 0.1 Ω
• Power: Electronic
• Transport Package: Wooden Box with Foam Inside
• Trademark: KDZD
• Origin: Hebei, China
• HS Code: 9030332000

Product Description

Products introduction

 

The KDKC-2020 transformer on load tap changer tester adopts computer control. Through a specially designed measurement circuit, it can measure the transition time, transition waveform, transition resistance, three-phase synchronicity, and other parameters of the on load tap changer. Users can directly measure them through the tap changer lead according to their needs and on-site conditions, or directly connect them through the transformer's three-phase bushing and neutral point.

 

The KDKC-2020 transformer on load tap changer tester has functions such as displaying, analyzing, storing, and printing the measured data. Solved the problem of outdated measurement methods and lack of specialized testing methods for on load tap changers in current power transformers. It is of great significance to timely diagnose potential faults of on load tap changer during preventive testing of power equipment and transformer overhaul, in order to improve the reliability of power system operation.

 

Technical parameter
Three independent testing power sources	3A/1A level; 0.6A/0.2A gear
Maximum voltage of the port	24V
Instrument setting sampling rate	10-30KHz
Resistance measurement range	0.3-40 Ω
Voltage mode	1A gear: 0.4 Ω~20 Ω 0.2A gear: 10 Ω~100 Ω
Transition resistance range	100 Ω
Resistance resolution	0.1 Ω
Accuracy: Transition resistance	± 5% Reading ± 0.1 Ω
Time measurement range	1ms~300ms
Time resolution	0.1ms
Time measurement accuracy	1ms~100ms ± 0.1ms; 100ms to 300ms ± 1%
Accuracy	Transition time: ± 0.5% Reading ± 0.2mS
Three phase synchronization	0.1ms; Sampling frequency: 10-20KHz
Processing section	High speed 32-bit microprocessor, storing up to 1000 sets of waveforms
High speed A/D converter	up to 400KHZ sampling rate
Power supply	AC220V10%; Power 180W
Size	420mm * 350mm * 220mm
Weight	12kg

 

Product features

 

1. Test Y0, Y, and △ type transformers, and display the resistance values directly without conversion.

 

2. Humanized data analysis can automatically identify faults in the middle of the waveform and mark them.

 

3. The waveform display automatically adjusts the resistance and time amplitude based on the sampled data.

 

4. It can be tested with or without windings.

 

5. The four terminal wiring method provides high-precision resistance measurement without the need for wire compensation.

 

6. Continuous testing can be conducted during testing to save time on transformer power outages.

 

7. This transformer on load switch tester can generate Word reports, facilitating data management and querying.

 

8. The instrument is controlled by a small computer with an external configuration of 800 × 480 color LCD touch screen.

 

9. High speed printer, supporting external mouse, easy to operate.

 

10. The instrument can automatically save 1000 sets of data internally, or it can be saved on an external USB drive.