1-500kV Standard capacitorDetailed product description：

1-500kV standard capacitor:

In every high-voltage laboratory and experiment, compressed gas standard capacitors are an important instrument and play a crucial role in these situations. In dielectric loss testing, compressed gas capacitors are used to measure the capacitance and dielectric loss tangent (tg δ) of capacitors, cables, bushings, insulators, transformer windings, and insulation materials. Moreover, it can also be used as a voltage divider device in high-voltage measurement. Under certain specific conditions, it can also be used as a high-voltage coupling capacitor in partial discharge measurements. In order to comply with the testing requirements of the "Preventive Testing Regulations for Power Equipment (DL/T596-1996)", our company has launched a complete set of testing equipment that can measure dielectric loss at rated voltage. For example, on-site testing requires measurement at a voltage of 100KV. A 150KV high-voltage standard capacitor and its corresponding QS41b or KMSB30 high-voltage bridge can be selected.

The complete measurement device for 1-500kV standard capacitors has the characteristics of small size, few peripheral connections, high measurement accuracy, high degree of automation, and easy on-site testing. In addition, the 10KV series standard capacitors have small volume and light weight, and the smallest one is particularly suitable for built-in use in automatic dielectric loss meters

Characteristics:
1. Capacitance (C) and dielectric loss (tg δ) and their stability. 
2. The impact of changes in air pressure, temperature, and humidity on capacitance is small and can be ignored. 
3. The dielectric loss itself is small

Structure Introduction:
1. The shell is composed of a bottom and a cover made of metal steel plates, which are fastened to both ends of the shell with bolts. 
2. The capacitor casing is equipped with highly polished high and low voltage electrodes. 
3. The capacitor is filled with SF6 gas, and the external shielded socket can be compatible with various types of electrical bridges and plugs of automatic dielectric loss meters at home and abroad.

Technical performance of 1-500kV standard capacitors:
Rated voltage: 1-500kV
Rated capacitance: 20-100pF
Measurement error: ＜ ± 0.05% 
Actual capacitance deviation: ＜ ± 1% 
Dielectric loss: tg δ ≤ 1 × 10-5 
Temperature coefficient: α ＜ 5 × 10-5/℃
Usage conditions: The installation and operation altitude of the capacitor shall not exceed 1000 meters
Using ambient air temperature: -10 ℃ -40 ℃; 
Relative humidity not exceeding 70%; 
Working frequency: 50Hz