Brand new high voltage polyester film capacitor bank，Series Capacitor

Brand new high voltage polyester film capacitor bank,Series Capacitor

1.Overview

The series capacitor is composed of a core, a shell, and an outlet porcelain sleeve. The two sides of the box wall are welded with hanging brackets for installation, and one side hanging bracket is equipped with a grounding bolt. The core of the capacitor is composed of several components and insulators. In order to adapt to various voltages, the core is composed of several small components connected in parallel and then connected in series. The capacitor is equipped with a discharge resistor, and the outer shell is formed by welding of stainless steel plates.

2. Purpose

High-voltage series capacitors are connected in series in a 50Hz or 60Hz AC power system to compensate for the inductive reactance of the power line, reduce line voltage drop, increase transmission capacity, and improve line stability.

3. Main features

3.1 Casing: Cold-pressed, anti-fouling type casing is adopted, and the creepage distance is not less than 31mm/kV.
3.2 Mature internal fuse technology:

• After testing, the internal fuse can isolate the faulty component within 0.2ms when the voltage is 0.5√2UN～2.6√2UN, the release energy of the fault point is not more than 0.3kJ, and the remaining intact components are not affected.
• Advanced concealed internal fuse structure, using oil gap arc extinguishing, reducing the possibility of blasting the capacitor case.
• The internal fuse protection and relay protection have perfect coordination standards to ensure the safe and reliable operation of the entire device.

3.3 Liquid medium: 100% benzyltoluene (M/DBT) is used. This liquid has excellent low temperature performance and partial discharge performance.
3.4 The main insulation adopts a composite insulation structure, which not only guarantees excellent electrical performance, but also has a certain degree of mechanical strength, which ensures that the insulation of the capacitor complete set of devices is 100% reliable without protection.
3.5 Good sealing performance: The annual leakage rate is less than 0.1%, and the sealing performance of the capacitor is guaranteed through measures such as automatic argon arc welding, vacuum leak testing, and thermal aging.
3.6 Partial discharge level: the extinguishing voltage is not less than 1.5Un, and each capacitor is tested for partial discharge during the factory test.

4.Executive standard

GB/T 6115-2008,IEC60143-2004,DL/T 840—2003

5.Conditions of Use

• Can be installed indoors and outdoors
• The altitude of the installation site generally does not exceed 2000 meters
• Temperature category: -40/B, pollution level: 1V level
• There is no gas or steam that is severely corrosive to metals.
• No strong mechanical vibration
• No explosive, flammable and dangerous goods

6.Order description

• Rated voltage
• Rated capacity
• Rated frequency
• Implementation standards
• Operating conditions (altitude, temperature category, indoor or outdoor, humidity, etc.)
• If you have special requirements, please specify when ordering

Shaanxi Herong Electric Group Co., Ltd., established in March 2004, located in