Product Overview

Power Quality

Power quality refers to the ability of electrical equipment to efficiently utilize the energy supplied to it. Various factors, such as electrical harmonics, poor power factor, voltage instability, and imbalance, can negatively affect equipment performance. To address these challenges, ELCO offers a range of solutions, including ELCO Passive Products, ELCO Systems Active Solutions, ELCO Systems MV Solutions and Fault Current Limiting Solutions , designed to enhance power quality and efficiency.

PASSIVE PRODUCTS

The combination of a low voltage PFC capacitor, detune reactor, capacitor duty contactor, and power factor regulator provides a comprehensive solution for improving power quality, reducing energy costs, and enhancing the reliability and efficiency of electrical systems. This setup is particularly beneficial in industrial and commercial applications where power factor correction and harmonic mitigation are critical. Below is the breakdown of the advantages.

Product Differentiation Overview

COMPONENT

BENEFIT

IMPACT

Low Voltage PFC Capacitor

Improves power factor by compensating for reactive power

Reduces energy costs, avoids utility penalties, and improves efficiency

Detune Reactor/Series Reactor

Prevents resonance with harmonics, protecting the capacitor and system

Enhances reliability of capacitor and prevents harmonic resonance while allowing reactive capacitive power injection.

Capacitor Duty Contactor

Handles high inrush currents during capacitor switching

Extends capacitor life and prevents contactor pre-mature failure

Power Factor Regulator

Automatically adjusts capacitor switching to maintain optimal power factor

Ensures continuous power factor correction and reduces manual intervention

Combination

Reduces line losses and improves system capacity

Lowers energy losses and maximizes infrastructure utilization

Ensures compliance with power quality standards

Avoids regulatory issues and ensures safe operation

Enhances equipment performance and lifespan

Provides power factor correction as well as tuned filtering against resonance occurrences

Provides energy cost savings by reducing reactive power demand

Lowers electricity bills, especially in high-consumption settings

Offers scalability and flexibility for future load changes

Future-proofs the system and adapts to changing needs

More robust

Able to withstand higher operating ambient

Easier to replace

Can replace component that have problem only, cheaper compared to active IGBT Solutions

Product Differentiation Overview

Phase

System Voltage

Rated Voltage

Series

IMPACT

Three Phase (3P)

380V / 400V / 415V

440V

700 Series

Cylindrical Type come with Terminal Block
To handle total Harmonic Distortion Voltage (THDv < 1.5%) and Current (THDi < 15%)

200 Series

Cylindrical Type come with Capping and Cable Gland
To handle total Harmonic Distortion Voltage (THDv < 1.5%) and Current (THDi < 15%)

200 Series Pole Mounted

Cylindrical Type come with Double Hex Stud and Bird Cap
To handle total Harmonic Distortion Voltage (THDv) of ≤ 3% and a Total Harmonic Distortion Current (THDi) of < 30%, Lightning Impulse value 15kV/36kv

134 Series

Prismatic Type
To handle total total harmonic distortion in voltage (THDv) of less than 3% and in current (THDi) of less than 25% without detuned/series reactors*[see Extended Warranty Offers]

525V

705 Series (Heavy Duty)

Cylindrical Type come with Terminal Block
To handle total Harmonic Distortion Voltage (THDv) of ≤ 3% and a Total Harmonic Distortion Current (THDi) of < 30% or 25%, without Detuned Reactors/ Series Reactors

205 Series (Heavy Duty)

Cylindrical Type come with Capping and Cable Gland
Top Deck – Capping with Cable gland
To handle total Harmonic Distortion Voltage (THDv) of ≤ 3% and a Total Harmonic Distortion Current (THDi) of < 30% or 25% without Detuned Reactors/ Series Reactors

205 Series Pole Mounted (Heavy Duty)

Cylindrical Type come with Double Hex Stud and Bird Cap
To handle total Harmonic Distortion Voltage (THDv) of ≤ 3% and a Total Harmonic Distortion Current (THDi) of < 25%

135 Series (Heavy Duty)

Prismatic Type
To handle total Harmonic Distortion Voltage (THDv) of ≤ 4% and a Total Harmonic Distortion Current (THDi) of < 30% or 25% without Detuned Reactors/ Series Reactors*See Extended Warranty Offers]

Single Phase (1P)

240V/250V

212 Series Pole Mounted

Cylindrical Type come with Capping and Cable Gland
To handle total Harmonic Distortion Voltage (THDv < 1.5%) and Current (THDi < 15%)

ELCO SYSTEMS MV SOLUTIONS AND FAULT CURRENT LIMITING SOLUTIONS

What are harmonics?

Harmonic is a component of a periodic wave having a frequency that is an integral multiple of the fundamental power line frequency of 50 Hz. For example, 150 Hx (3 x 50 Hz) and 250 Hz (5 x 50 Hz) is a 3rd and 5th order harmonic of the fundamental frequency. Depending on the impedances available on local grid, harmonic penetration level THDu > 3%, with corresponding THDi > 30% is generally a cause for serious consideration as these prevalent harmonics can interact with current network impedances to create a resonance circuit.

Consequences of high harmonic distortion level?

Harmonics can cause several problems such as :

Transformers vibrations & getting overheated
Significant Transient activity i.e. nuisance tripping in supply system protection relays and mechanical damage caused by suddence stoppage of heavy machines.
Decreasing distribution capacity due to skin effect in cables
Neutral conductors in 3-Phase balanced circuits getting overheated and / or burnt
Failure of Power factor correction capacitors without series/detuned reactors
Interference in telecommunication equipment
Generator Hunting caused by frequency of the transient torque harmonics matching the machine oscillation natural frequency
Supply Voltage distortion and increased lagging power factor

Negative Consequences of Harmonics on Plant Equipment

EQUIPMENT

CONSEQUENCES

Current Harmonic Distortion Problems

Capacitors

Blown Fuses, reduced capacitor life

Motors

Reduced motor life, inability for fully load motor

Fuses/breakers

False/spurious operation, damaged components

Transformers

Increased copper losses, reduced capacity

Voltage Harmonic Distortion Problems

Transformers

Increased noise, possible insulation failure

Motors

Mechanical

Electronic loads

Mis operation

Now you can resolve power quality and harmonic distortion issues with ELCO Systems’ MV Solutions and Fault Current Limiting Solutions.

Please Contact Us for more information.