Anti-interference Capacitance & Dissipation Factor Tester China Tan Delta Tester Manufacturer
Product Description
Why choose GDGS?
In the preventive testing of power equipment, the measurement accuracy of dielectric loss (tg δ) and capacitance (Cx) is directly related to the safety assessment of equipment operation.
GDGS Transformer Dielectric Loss Tester is an integrated intelligent tester that integrates variable frequency power supply, step-up transformer, and SF6 high stability standard capacitor. It is designed specifically for power plants, substations, and laboratory sites, and can automatically measure the dielectric loss and capacitance of various high-voltage electrical equipment.
No matter how much electric field interference exists on site, GDGS can use frequency conversion and digital filtering technology to help you "clear the interference fog" and obtain real and reliable insulation data.
Functional highlights
Multiple testing modes, one machine can handle all scenarios
No longer need to prepare multiple sets of instruments for different devices. GDGS has built-in rich testing modes to easily handle various complex working conditions:
| Positive/Negative Connection Method: Suitable for testing conventional transformers, motors, bushings, and other equipment. |
External high voltage/external standard capacitor: flexible adaptation to special on-site requirements. CVT testing: For capacitive voltage transformers, it supports separate testing and synchronous testing, doubling efficiency. |
CVT ratio test: One click measurement of ratio and voltage angle difference, data is clear at a glance. LCR testing: Automatically identify and measure inductance, capacitance, resistance, and angle values. |
Intelligent anti-interference technology, stable even under strong electric fields
Instrument is equipped with a built-in digital notch filter and supports multi frequency point selection . In the strong interference environment of substations with voltage levels of 500kV or even higher, accurate measurements can still be made, completely solving the industry pain point of data drift under high electric fields.
CVT testing "black technology" - without dismantling the high voltage leads
Traditional CVT testing requires the removal of high-voltage leads, which is time-consuming, labor-intensive, and carries safety risks. GDGS supports direct measurement of CVT without dismantling high-voltage leads, and can measure the dielectric loss and capacitance of the upper end C0 of CVT through reverse shielding method, greatly improving on-site work efficiency.
Large screen touch control, operating like a smartphone
Equipped with a high-end full touch LCD screen 120mm × 90mm, the interface is clear and friendly. Each step of the operation has clear instructions, even for non professionals, simply follow the on-screen prompts and click to complete the entire testing process, truly achieving "power on and use".
Massive storage and data export
| Built in large capacity memory, capable of storing 200 sets of test data and automatically recording time series. |
| Support one click export from USB flash drive, data can be viewed, analyzed, and managed on a computer, making it easy to generate reports. |
| Equipped with a built-in thermal printer, test results can be printed on-site. |
Technical parameters
1 | Use conditions | -15℃∽40℃ | RH＜80% | |||||
2 | Anti-interference | Frequency conversion | ||||||
3 | Power | AC 220V±10% | Allowable generator | |||||
4 | High output | 0.5KV∽10KV | Every 0.1kV | |||||
Precision | 2% | |||||||
Maximum current | 200mA | |||||||
Capacity | 2000VA | |||||||
5 | Self-excited power | AC 0V∽50V/15A | 50.0HZ,60.0HZ Single frequency 45.0HZ/55.0HZ 47.5HZ/52.5HZ 55.0HZ/65.0HZ 57.5HZ/62.5HZ Automatic double frequency | |||||
6 | Resolving power | tgδ: 0.001% | Cx: 0.001pF | |||||
7 | Precision | △tgδ:±( Reading *1.0%+0.040%) | ||||||
△C x :±( Reading *1.0%+1.00PF) | ||||||||
8 | measuring range | tgδ | Unlimited | |||||
C x | 15pF ＜ Cx ＜ 300nF | |||||||
10KV | Cx ＜ 60 nF | |||||||
5KV | Cx ＜150 nF | |||||||
1KV | Cx ＜300 nF | |||||||
CVT test | Cx ＜300 nF | |||||||
9 | LCR test | L>20H（2kV） | R>10KΩ（2kV） | |||||
Accuracy: 1% | Angular resolution: 0.01 | |||||||
10 | CVT test | CVT ratio range : 10∽10000 | ||||||
Accuracy: 1% | Variable ratio resolution: 0.01 | |||||||
11 | Exterior dimension | 350（L）×270（W）×315（H）(host) | ||||||
350（L）×270（W）×160（H）(accessory box) | ||||||||
12 | Memory size | The 200 group supports U disk data storage | ||||||
13 | Weight | host: 22.75Kg | ||||||
accessory box: 5.25Kg | ||||||||
On site application wiring reference
Positive connection method: suitable for equipment with both ends insulated from ground.
Reverse connection method: applicable to equipment with one end grounded.
CVT self-excited method: When the voltage is ≤ 2kV, the CVT's own winding is used for excitation without the need for an external high-voltage source.
GSTg test: Conduct high to low, low to high shielding tests on the second or third winding of transformers.
Packing List
SN | Designation | QTY. |
1 | Host computer | 1 unit |
2 | Accessory case | 1 pc |
3 | Red HV test wire | 1 pc |
4 | Black LV test wire | 1 pc |
5 | AC220V power cord | 1 pc |
6 | CVT self-excited power cord (attached)
| 1 pc |
7 | Ground wire
| 1 pc |
8 | Operation Instruction | 1 copy |
9 | Certificate of Conformity | 1 copy |
10 | Fuse, printer paper | Spare |