| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Years |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Technical Parameters:
1. High voltage standard capacitor
Model: YL300-100
1) Rated voltage: 300kV
2) Withstand voltage: 330kV (1.1UN), 1min
3) Rated frequency: 10Hz-1000Hz
4) Rated capacity: 100pF (C12)
5) Capacity deviation: ±0.5%
6) Capacity stability: <0.01%/year
7) Accuracy of capacitance data: <±0.05%
8) At rated frequency, the capacitor tanδ at rated voltage should be less than 1×10-5;
9) The capacitor is filled with SF6 gas, and the rated pressure is 4bar
10) The absolute value of the pressure coefficient is not more than 2.2×10-3/0.1Mpa;
11) The absolute value of the capacitor voltage coefficient is not more than 3×10-5;
12) The absolute value of the capacitance temperature coefficient is not more than 3×10-5/ºC;
13) The frequency drift is not more than 1×10-5;
14) The capacitor can withstand the test of 2 times the rated air pressure, which lasted 72 hours;
15) Tightness: annual leakage is not more than 0.25%;
16) The low-voltage side of the 16 capacitor is equipped with a secondary discharge tube protection device to protect the safety of operators. The standard capacity comes with a secondary terminal box and connecting cable. The Lemo plug is equipped with a self-locking function to prevent the plug from loosening;
17) Measuring electrode-to-shielding electrode and grounding electrode, shielding electrode-to-grounding current at 3kV for 1 min or measuring the insulation resistance value with an insulation tester not less than 500MΩ;
18) Continuous operation under 18 rated voltage, partial discharge is less than 2pC;
19) Long-term operation under rated voltage;
20) Total package weight: about 450kg
Complete equipment:
1. 300kV standard capacitor body 1 unit
2. Mobile chassis 1 pc
3. Dedicated equalizing ring 1 pc
4. Dielectric loss special measuring line 2 (50 meters)
5. Junction box 1 pc
6. Factory report and certificate 1 copy
7. Manual 2 copies
8. Inflatable connector (DILO matching) 2 pcs
9. Pressure gauge (WIKI) 1 pcs
10. Maintenance manual 1 copy
Acceptance test items
|
No. |
Test Item |
Accept |
Remark |
|
|
Appearance and anti-corrosion layer inspection |
√ |
Inspect the anti-corrosion layer, casing color, appearance and size of metal parts; |
|
|
Terminal inspection |
√ |
After inserting the plug of the connecting wire into the socket of the terminal, it shall have a self-locking function; |
|
|
Protection device inspection |
√ |
Apply power frequency voltage from low to high to the protective device between each low-voltage terminal of the capacitor and the ground; |
|
|
Air pressure check |
√ |
/ |
|
|
Tightness test |
√ |
Wrap the sealing surface of the capacitor and let it stand for 24, then perform a quantitative test; |
|
|
Mechanical performance inspection |
√ |
Fill the capacitor with nitrogen at 2 times the rated pressure for 72 hours; |
|
|
Withstand voltage test |
√ |
During the test, the capacitor 0 voltage should be continuously boosted to 330kV and kept for 1 minute; |
|
√ |
Method 1: Use a 3000V insulation resistance meter to measure the insulation resistance between the low-voltage terminals of the capacitor and between the ground; Method 2: Apply a power frequency voltage of 3kV between the low-voltage terminals of the capacitor and between the capacitor and the ground for 1 min; |
||
|
|
Capacitance measurement |
√ |
100kV-300kV, measured under every 100kV; |
|
|
Loss tangent measurement |
√ |
100kV-300kV, measured under every 100kV; |
|
|
Partial discharge test |
√ |
Raise the capacitor from 0 to Un, keep it for 1min, before and after the withstand voltage; |
HuaZheng Electric Manufacturing (Baoding) Co.,Ltd is the supplier of the State Grid in China.It means we are the supplier of the Chinese Government.And our products spread throughout the whole China.
){kind=link}