HC90 Oil Cup for Liquid Dielectric Loss Measuring

HC90 serial tan delta & dissipation factor measuring electrode, also named: oil cup, is special designed for power cable oil, power transformer oil, HV capacitor oil… - liquid insulation material dielectric loss and dissipation factor (tgδ), relative dielectric constant (er).direct current resistance rate measurement.    
On the function, HC90 Serial oil cup can take the place of  similar products from european/amercia, which also adopt IEC relative standard.    
It’s special designed shield electrode, the distance between electrode is 2mm, cylinder type air capacitor, with the function of constrain and eliminate stray capacitance and improve measuring accuracy.

  
Main Technical Parameter:
a.       Distance between two electrode: 2mm
b.       Hollow cup capacitance: 60±5pF
c.       Maximum measuring voltage: 2kV
d.       Hollow cup tgδ: ≤5×10^-5
e.       Liquid volume: 40cm³
f.        Electrode material: stainless steel
g.       Dimension: 240mm x 220 (Dia x H)

Electrode structure:

1.Exhaust side
2. Insulating column
3. Shielding guard electrode(guard ring)
4. Measuring electrode(inner electrode)
5. High voltage electrode(outer electrode)
6. Fastening nut
7. Mounting body
8. Leading-out terminal of measuring electrode