Advantages:
Automatic compensation
Fast response ≤ 20 ms
Reduce electricity consumption
TFT color touchscreen
Automatic monitoring by an intelligent controller
Multi-fan cooling control
Capacitor Bank
SINAVA POWER
Advantages:
Automatic compensation
Fast response ≤ 20 ms
Reduce electricity consumption
TFT color touchscreen
Automatic monitoring by an intelligent controller
Multi-fan cooling control
In industrial production and daily life, most loads in power systems are inductive, and the grid power factor is relatively low. A lower power factor reduces equipment utilization, increases power supply investment, damages voltage quality, reduces equipment lifespan, and greatly increases line losses. Therefore, by connecting a capacitor compensation cabinet in the power system, inductive loads can be balanced, power factor can be improved, and equipment utilization can be enhanced. The low-voltage capacitor compensation cabinet consists of a cabinet body, busbar, fuses, switches, surge protection devices, capacitors, reactors, a PFC controller, and multifunctional power meter.
Low-voltage capacitor banks are widely used in power systems with numerous inductive loads, including industrial facilities, commercial buildings and public facilities.
Industrial factories: In industrial production, electric motors and other large equipment generate a large amount of reactive power, and the use of compensation cabinets can significantly improve the efficiency of electricity use in factories.
Commercial buildings: In large commercial complexes or office buildings, compensation cabinets can help optimize electricity usage and reduce electricity bills.
Hospitals and schools: Compensation cabinets improve power-system stability and reliability.
When you need a Low-Voltage Capacitor Bank for power factor correction or reactive power support, Sinava Power has the solution you need. With decades of experience in supplying industrial capacitor banks, our team can provide a customized solution that is tailored to your specific application and unique needs.
A: A capacitor bank is a collection of capacitors connected in series or parallel to store electrical energy, which is primarily used for power factor correction and voltage stabilization.
A: They provide reactive power to compensate for inductive loads, thereby improving the power factor and reducing energy losses in the system.
A: The main types include shunt, series, fixed, and automatic capacitor banks.
A: A power factor greater than 1 is not physically possible in a conventional AC system. A reading above 1 usually indicates a measurement or calculation error.
Now, when we introduce a reactor into this capacitor bank configuration, we transform it into a harmonic filter. The term “harmonic filter” is derived from the synergy between the capacitor’s capacitance and the reactor’s inductance, which collectively establish a low-impedance pathway tailored to a specific frequency. To simplify this concept, think of harmonic filters as constructing a high-speed express lane with minimal resistance for electrons operating at a particular harmonic frequency.
By carefully selecting the appropriate combination of capacitance and inductance, we can effectively engineer this low-resistance pathway, designed to filter out and mitigate current harmonics from the overall system.
Energization: Capacitor banks initially resemble a short circuit during energization, causing voltage drops and transient overvoltages. While not typically harmful to utility equipment, they can affect sensitive customer equipment.
In back-to-back arrangements, energizing the second bank may lead to high inrush currents, shortening the device’s life.
De-energization: When a capacitor switch opens, the voltage across the contacts combines the system and capacitor bank voltages. This can cause re-strikes, generating overvoltages approaching 3 p.u.
Re-strikes can trigger issues like ruptured capacitor cans, blown fuses, and contact wear, leading to dielectric failures.
Low-voltage capacitor banks are essential components in electrical engineering, offering solutions for improving power efficiency and reliability in various applications. Their ability to correct power factors, manage reactive power, and enhance voltage regulation makes them essential to your electrical systems. Contact us today to explore our range of power factor correction capacitors!
Technical Specifications
TSC system
CSC system
| Grid rated voltage | 400 V / 480 V / 550 V | |
| Frequency | 50/60 Hz (±5%) | |
| Rated reactive power | 100–400 kVAr | |
| Operating mode | Automatic | |
| Network pollution level | Low | |
| Harmonic pollution rate | 15…25% [Gh/Sn] | |
| Total harmonic distortion of voltage | 3…4% [THDU] | |
| Power per step | 10–50 kVAr | |
| Switch type | Thyristor switch | Composite switch |
| Switching times | 10^6 times | 1.20 million times |
| Response time | ≤ 20 ms | ≤ 1 s |
| Capacitor technology | Three-phase capacitors | |
| Capacitance tolerance | -5% to 10% | |
| Detuned reactors | 7% / 14% | |
| [Uimp] rated impulse withstand voltage | 8 kV | |
| Main incomer protection | Circuit breaker protection | |
| Breaking capacity | Icu: 35 kA | |
| Control type | Rotary handle | |
| Step protection type | Overload: harmonic control Short-circuit: main circuit breaker | |
| Colour | Grey (RAL 7035) | |
| Weight | 150–300 kg | |
| Dimensions (W × D × H) | 1,000 × 1,000 × 2,000 mm | |
| Environment | ||
| Mounting location | Indoor, free-standing | |
| IP degree of protection | IP40 | |
| Relative humidity | 0…95% | |
| Operating altitude | ≤ 2,000 m | |
| Ambient air temperature for operation | -5…45 °C | |
| Average ambient air temperature for operation | 35 °C (annual) | |
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