Tan Delta and Capacitance Diagnostic System
I.Introduction:
TDT Transformer Capacitance and Tangent Delta Diagnostic System is a high-precision instrument, which can be applied to automatically measure electrical loss tangent ( ) and capacitance of all kinds of high voltage electrical equipments on the spot of power plants, substations,laboratory, etc. The instrument is an integrated structure with a dielectric loss test bridge, a variable frequency power supply, a step-up transformer and a SF6 high stability standard capacitor.
II.Features.
★Large LCD display
Simple operation, the instrument is equipped with a high-end full touch LCD screen, super touch interface, and each process is very clear. Operators can use it without additional professional training.
★Mass storage data
The instrument is equipped with a calendar chip and large capacity memory. The test results can be stored in chronological order. Users can view historical data at any time and print it out.
★Multiple test modes
The instrument can be tested by high pressure, high voltage, standard, positive connection method, reverse connection method, self excitation method and other methods.
★CVT test step in place
The instrument can also test the full sealed CVT (capacitor voltage transformer) C1, C2 dielectric loss and capacitance, to achieve the C1, C2 simultaneous test.
★Do not dismantle the high-voltage lead measurement CVT
The instrument can accurately measure the dielectric loss and capacitance of CVT without dismantling the CVT high voltage lead.
★CVT reverse shield method for measuring C0
The instrument can be used to measure the dielectric loss and capacitance value of C0 on the upper end of CVT.
★High speed sampling signal
The inverter and sampling circuit of the instrument are all controlled by digital, and the output voltage is adjustable continuously.
★Multi protection security
The instrument has many protection measures, such as input voltage fluctuation, output short circuit, over voltage, over current and temperature.
III.Specifications:
| 1 |
Use conditions |
-15ºC∽40ºC |
RH<80% |
| 2 |
Anti-interference |
Frequency conversion |
| 3 |
Power |
AC 220V±10% |
Allowable generator |
| 4 |
High output |
0.5KV∽10KV(rated voltage:10KV) |
Every 0.1kV |
| 0.5KV∽12KV(rated voltage:12KV) |
| Precision |
2% |
| Maximum current |
200mA (rated voltage:10KV) |
| 167mA (rated voltage:12KV) |
| Capacity |
2000VA |
| 5 |
Self-excited power |
AC 0V∽50V/15A |
45HZ/55HZ 47.5HZ/52.5HZ
55HZ/65HZ 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 |
| rated voltage:10KV |
10KV |
Cx < 60 nF |
| 5KV |
Cx < 150 nF |
| 1KV |
Cx < 300 nF |
| rated voltage:12KV |
12KV |
Cx < 30 nF |
| 5KV |
Cx < 150 nF |
| 1KV |
Cx < 300 nF |
| CVT test |
Cx < 300 nF |
| 9 |
CVT range |
10∽10000 |
| accuracy |
0.1% |
| Resolving power |
0.01 |
| 10 |
Exterior dimension |
350(L)×270(W)×270(H) |
| 11 |
Memory size |
The 200 groups supports U disk data storage |
| 12 |
Weight |
28 Kg
|
