About Power Capacitor
Power Capacitor
The capacitor is a component which has the ability or "capacity" to store energy in the form of an electrical charge producing a potential difference (Static Voltage) across its plates, much like a small rechargeable battery. There are many different kinds of capacitors available from very small capacitor beads used in resonance circuits to large power factor correction capacitors, but they all do the same thing, they store charge. In its basic form, a Capacitor consists of two or more parallel conductive (metal) plates which are not connected or touching each other, but are electrically separated either by air or by some form of a good insulating material such as waxed paper, mica, ceramic, plastic or some form of a liquid gel as used in electrolytic capacitors. The insulating layer between a capacitors plates is commonly called the Dielectric.
Construction:
- Dielectric: Polypropylene film
- Semi dry; high viscosity PU resin; non-PCB
- Container type / finish; MS sheet metal/powder coated gray colour
- Built-in inductor coil
Features:
- Three phase
- Self-heating technology
- Naturally air cooled (or forced air cooling)
- Eruption proof
Typical applications:
For power factor correction
Technical Data and Specifications:
| Characteristics | Normal Duty | Long Life (Heavy Duty) | Super Heavy Duty |
| Tolerance | --0/+ 10% | --0/+ 10% | --0/+ 10% |
| Rated Voltage - Vac | 415, 440V* | 415, 440V* | 415, 440V* |
| Rated frequency fr | 50/60Hz | 50/60Hz | 50/60Hz |
| Dielectric Losses | < 0.2 W/kvar | < 0.2 W/kvar | < 0.2 W/kvar |
| Losses (Single Phase cell) | < 0.5 W/kvar | < 0.5 W/kvar | < 0.5 W/kvar |
| Maximum ratings |
| Maximum Permissible Voltage | 1.1 Un | 1.2 Un | 1.3 Un |
| Maximum Permissible Current | 1.3 In (A) | 1.4 In (A) | 1.5 In (A) |
| Transient peak Current max Permissible | 100 In (A) | 200 In (A) | 300 In (A) |
| Climatic category |
| Tmin | -25 C | -25 C | -25 C |
| Tmax | +50C | +50C | 50C |
| Rel humidity | Av < 95% | Av < 95% | Av < 95% |
| Maximum altitude | 4000 m | 4000 m | 4000 m |
| Mean life expectancy |
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| TLD | Upto 100,000 Hrs | Upto 125,000 Hrs | Upto 150,000 Hrs |
| Design data |
| Impregnation | Non-PCB, PU Resin |
| Dielectric | Polypropylene film (metallised) |
| Terminals | Threaded Stud terminals with Ceramic bushings |
| Mounting and Grounding | Self standing with mounting plates and screws for grounding |
| Connection | Delta |
| Cooling | Natural |
| Case Shape/Finish | Rectangular / Powder coated Siemens gray colour |
| Casing of capacitor cell | Extruded Aluminium (Hermatically sealed) |
| Enclosure | IP41-Fabricated sheet metal |
| Safety |
| Safety | Overpressure disconnector, Self healing Sheet metal enclosure |
| Max short circuit current | AFC:10kA |
| Discharge resistor | Included |
| Discharge resistor time | <1 min (50 V) |
*Other voltages available on request
Exceptional Longevity and Safety FeaturesBuilt to last up to 100,000 hours, this capacitor integrates crucial safety measures such as an internal fuse, discharge resistor, and over-pressure disconnector. The self-healing dielectric ensures stable operation, while IP20 enclosure protection and high insulation resistance safeguard against environmental hazards and electrical faults.
Optimized for Industrial Power Factor CorrectionSpecially configured for use in industrial electrical panels and power factor correction applications, this capacitors rated current of 3.5 A at 2.5 kVAR boosts energy efficiency and reduces operational costs. Its robust design suits environments at altitudes up to 2000 meters and working temperatures ranging from -25C to +55C.
Effortless Installation and MaintenanceThe capacitors quick connect terminal and panel mount design streamline installation, making it accessible for both distributors and service providers. Its anodized silver finish and aluminium case combine functionality with durability, ensuring stable performance and easy integration into various electrical setups.
FAQs of Power Capacitor:
Q: How is the power capacitor installed in an industrial electrical panel?
A: The capacitor features a panel mount design with quick connect terminals, allowing for straightforward integration into industrial electrical panels. Professional installation is recommended to ensure correct electrical connections and maximize service life.
Q: What are the primary usage scenarios for this capacitor?
A: This capacitor excels in power factor correction, industrial power supply, and use within electrical panels, contributing to improved efficiency and reduced energy losses in commercial and industrial settings.
Q: Where can the power capacitor reliably operate?
A: It operates efficiently in areas with altitudes up to 2000 meters, working temperatures from -25C to +55C, and environments requiring high moisture resistance, thanks to its IP20 enclosure and protective features.
Q: What safety mechanisms are built into this capacitor?
A: It is equipped with an internal fuse, a fitted discharge resistor, and an over-pressure disconnector, which collectively enhance electrical safety, protect against surges, and mitigate the risk of damage or overheating.
Q: How does self-healing technology benefit long-term performance?
A: The metallized polypropylene film utilizes self-healing technology, which allows localized repair of dielectric breakdown, guaranteeing sustained capacitor functionality and extending operational life up to 100,000 hours.
Q: When should this power capacitor be considered for replacement?
A: Replacement is generally recommended after reaching its maximum service life of 100,000 hours or if dielectric loss factor exceeds 0.2 W/kVAR, ensuring consistent performance and safety in electrical installations.
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