10kV Tan Delta Tester for Transformer and Bushing Dielectric Loss Testing in Substation and Power Plant Applications

Product Description

SXJS-III Tan Delta Tester

The Tan Delta Tester is designed for dielectric loss and capacitance measurement of high-voltage electrical equipment. It is widely used for transformers, instrument transformers, bushings, capacitors and surge arresters in power plants, substations, transformer manufacturing facilities and electrical maintenance departments. The tester is also suitable for insulation condition assessment during equipment installation, handover and preventive testing.

The system uses variable-frequency power technology with automatic frequency conversion, analog-to-digital conversion and data processing. Its power supply generates pure sine-wave outputs at 45 Hz and 55 Hz and provides automatic voltage application up to 10 kV. The design offers strong interference resistance and fast testing for dielectric loss measurements in electrically noisy field environments.

Product Parameters

Product Advantages

• Variable-Frequency Testing — Uses frequency conversion technology with 45 Hz and 55 Hz pure sine-wave output for dielectric loss measurement.
• High Interference Resistance — Designed to maintain reliable testing performance in field environments with strong electrical interference.
• Automatic Voltage Application — Provides automatic voltage application with a test voltage up to 10 kV.
• Fast Digital Processing — Combines microcontroller technology, analog-to-digital conversion and data processing for efficient measurement.

Application Scenarios

1. Transformer dielectric loss testing
2. Instrument transformer insulation testing
3. Substation bushing testing
4. Capacitor dielectric loss measurement
5. Surge arrester insulation testing
6. Preventive testing at power plants and substations

FAQ

Q1. What equipment can this Tan Delta Tester measure?
A: It is suitable for transformers, instrument transformers, bushings, capacitors and surge arresters.

Q2. What is the test voltage range?
A: The specified test voltage range is 0.5–10 kV.

Q3. What frequency does the tester use for dielectric loss testing?
A: The variable-frequency power supply provides pure sine-wave outputs at 45 Hz and 55 Hz.

Q4. Can it be used for field testing?
A: Yes. It is designed for dielectric loss measurements in substations, power plants and other field environments, including locations with significant electrical interference.

Q5. What is the capacitance measurement range?
A: The capacitance measurement range is 3 pF to 60000 pF.