Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
Product Description
Fireproof high voltage shunt capacitor (hereinafter referred to as capacitor) is composed of components, insulation, discharge resistance, connecting parts, shell, outgoing porcelain sleeve, etc. The shell is formed by stainless steel plate and welded. There are hanging clamps welded on both sides of the box wall for installation and grounding bolts on both sides. The inner shell is filled with benzyl toluene insulating oil to make the capacitor have good electrical performance. Water-based fireproof medium is filled between the inner shell and the outer shell to make the capacitor fire-proof.
Fireproof high-voltage shunt capacitors are mainly used to compensate the reactive power of the power system, improve the load power factor, reduce the reactive power transmission of the line, improve the transmission capacity of the grid, reduce power loss, reduce energy loss and improve voltage quality and improve equipment utilization.
Executive standards:GB/T 11024; DL/T 1647-2016; IEC 60871
Product Parameters
The insulation between the capacitor terminal and the housing shall be able to withstand the test voltage shown in Table 1. The time of application frequency test voltage is 1min. Capacitor insulation levels are selected according to Table 2. If you have any special requirements, please make them at the time of ordering.
Table 1 Insulator Level kV
Capacitor's insulation level
|
Insulation level |
| Short-time power frequency withstand voltage square mean root value. |
Lightning impulse withstand voltage (1.2 ~ 5) /50μs peak |
| 10 |
42 |
75 |
| 20 |
65 |
125 |
Table 2 Insulation kV
| Rated voltage |
6.3/√3, 6.6/√3,7.2/√3 |
10.5/√3,11/√3, 12/√3, |
11/2,12/2,11,12 |
21/2,23/2,20,21,22,24 |
| Insulation level |
10 |
20 |
| Item |
Value |
| Rated frequency |
50Hz |
| Rated capacity |
100,200,300,334,417,500,667kvar (negotiable) |
| Loss Angle tangent value (tanδ) |
≤0.0003 |
| Phase |
Single or Three |
| Discharge resistance |
The capacitor is equipped with internal discharge resistance, and after disconnecting from the grid, the voltage on the terminal can be reduced to less than 50V within 10 minutes. If you have any special requirements, please make them at the time of ordering. |
| Capacitance deviation |
3%~+5% |
| Inner fuse |
Comply with the requirements of Article 6.2.19 of DL/T1647-2016 |
Properties
1. Bushing: cold-pressed, anti-pollution type bushings, creepage distance is not less than 31mm/kV.
2. Liquid medium: 100% benzyl toluene (M/DBT) is used, which has excellent low temperature performance and partial discharge performance.
3. The main insulation adopts composite insulation structure, which ensures excellent electrical performance and has certain mechanical strength, ensuring that the ground insulation of the capacitor complete set is 100% reliable without protection.
4. Good sealing performance: annual leakage rate is less than 0.1%, through automatic argon arc welding, vacuum leakage test, hot aging and other measures to ensure the sealing performance of the capacitor.
5. Partial discharge level: the extinguishing voltage is not less than 1.5Un, and each capacitor is tested for partial discharge during factory test.
Service Environment
1. Indoor substations, underground substations and other substations with fire prevention requirements.
2. The elevation of the installation site does not exceed 2000m (please specify when ordering a place higher than 2000m).
3. Temperature category: -25/C.
4. There should be no severe mechanical vibration in the installation site, no corrosive gas, water vapor, no flammable gas, no conductive or explosive dust around.
5. The harmonic content of the installation site should meet the requirements of relevant national standards, and if there are special requirements, indicate it in the contract.
6. The switch should have no heavy breakdown.
7. Working position: the ground inclination is not more than 5 degrees.
8. Earthquake: less than magnitude 8.
Order Instruction
1. Rated voltage; 2. Rated capacity; 3. Rated frequency; 4. Standards,
5. Service conditions (altitude, temperature, indoor or outdoor, humidity, etc.), 6. Other special requirements.
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