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active comp naac's product

The Activcomp is a state of the art, electronic switching system designed for Power factor Correction & Harmonic Filter.

Connection and disconnection of the capacitors to and from the network occurs at zero current crossing. This smooth connection avoids the transient effects typically created by electro mechanically switched PFC systems.
 

The electronic switches do not wear out or deteriorate during the switching process and the capacitors are not adversely affected by transients. These advantages contribute to a much longer life expectancy compared with electro mechanically switched PFC systems.

The power factor is controlled very accurately by means of an advanced closed loop control & measuring unit, that takes into consideration all three phases and the effect of harmonics
(1 through 63).

The Activcomp system is equipped with a unique scan feature that protects capacitors from "exploding" and contributes to longer life expectancy. This is achieved by reducing over-current and overheating in the capacitors which may result from harmonics on the mains. The switching element can perform an unlimited number of switching operations. The connection of one group of capacitors occurs simultaneously with the disconnection of another group. This operation is performed every few seconds and engages all capacitor group in turn, resulting in a reduction of mean current due to the lower ratio of engagement time to cycle time (duty cycle).

The scan feature, together with the unique reactor design, substantially reduces the temperature rise of the reactors and protects the cabinet from overheating.

Controller

A digital signal processor (DSP) and a VLSI component form the basis of the controller's technology. It features an LCD display, analog and digital circuitry, precise firing algorithms and optional communication capabilities. The controller has 9 input channels; 4 voltages (for Wye networks), 3 main currents and 2 internal system currents. The information obtained from these measurements is used for Fast Fourier Transform (FFT) analysis, performed each network cycle on all channels. Further harmonics are calculated on all phases, allowing the Activcomp to achieve ideal compensation even in the presence of harmonics.

The Activcomp's controller is available with a choice of data gathering levels, from essential power parameter measurements only (V, I, f, kW, kVA, kVAr) to complete power system performance monitoring that takes advantage of the comprehensive measurement system (over 2,000 electrical parameters, including min/max levels and four-quadrant measurement of power and power factor).

The large LCD display is full-graphic, 160x128 pixels, and has long-lasting LED backlighting with FSTN technology. Characters are displayed in varying sizes and methods to enhance visibility. These include a Large Digits display, Harmonic spectrums, real-time Waveform plots and simple Text screens that include menus, easy-to-use setup programs and various measurements.

General Specifications:

Operational Mode

• Manual
  
• Automatic
  
• Test

Scan mode

Display Structure :

• Graphic, high contrast FSTN LCD
  
• 4.7", Black/White
  
• Long life LED backlight
  
• Antiglare coated polycarbonate window

Functions :

• Menu driven operation
  
• Self explained windows
  
• User friendly
  
• Easy installation using wizard

Display Modes
(Refer to images on next page):

• Large Digit Screen-displays 9 numerical values
  
• Waveform Screen - displays wave shape together with waveform detailed information
  
• Harmonics Screen - displays complete harmonic spectrum, including each harmonic details from 1st to 63rd (amplitude, percentage and phase shift).

Built in Power Quality measurement system
Simultaneous measurement of the following sections:

• Mains (total of load and capacitor)
  
• Load
  
• Capacitor (system)
  
• Combination of Mains, Load and Capacitors.

For example, if reactive energy parameter is selected, the user can see the KVAr consumption by the Load, the connected KVAr by the Capacitor System and the result on the Mains.
Calculation Method

• True RMS measurements (up to 63rd harmonics).
  
• Based on FFT algorithm which is carried out cycle to cycle (128 samples per cycle).

Error & Alarms

• Self explained, automatic capacitor group self test procedure
  
• Blown fuse error
  
• Shorted SCR error
  
• Over temperature alarm
  
• Parallel resonance detection mechanism

The system identifies the resonance frequency (5th, 7th etc.) and disables the connection of the Capacitors groups as soon as resonance occurs.

• Phase sequence error detection
  
• Frequency margins error detection
  
• Spikes detection
  
• Automatic recording of all troubleshooting related Events including time (year, month, day, hour, minute, second, Cycle number), up to 16,000 events, stored in FIFO Configurations.

• Voltage free contact (N.O./N.C.) Alarm relay

Communication.

• Isolated RS485
  
• Up to 115k Baud Rate
  
• Protocols options: ELCOM-( High-Speed Communication protocol) ModBus/RTU (IEEE 754 Floating Point)
  
• Full remote control

Controller Specifications

Power Supply: LCD Display Size: LCD Display Resolution: LCD Display Type: Frequency Power Consumption: Operating temperature: Communications: Alarm: Protection class: Dimensions: Weight: Storage temperature: Sensors: Currents:	115/230V, 50/60Hz 94x76mm Graphic 160x128 pixels FSTN, LED backlight 30 to 70 Hz 10VA 20 to +55°C RS-485 communication port Voltage free N.O/N.C, relay, max 2A@250VAC IP 40 144x144x138mm 1.4 kg -25 to +70°C Three 5A current sensors for Mains/Load Two 5A current sensors for Capacitor current Four volt. sensors (upto 500V ph. to ground)
Keys:	Five soft touch button
Controller Box Standard:
Electromagnetic compatibility: Safety standards:	EN50081-2, EN50082-2, EN55011, EN61000 4 2/3/4/5, ENV50204, ENV50141. EN61010-1, EN50439-1

Power Factor & Harmonics Studies

As power utilities continue to be pushed to the limits of supply capability, rising energy costs and decreasing power quality will continue to be an issue for consumers. Users continually search for ways to not only reduce energy costs, but also ensure their processes will continue to operate, no matter the quality of the incoming power. To accomplish this, more and more variable frequency drives, UPS systems, CFL, LED, Computer and other non-linear loads are being installed.

It has been found that with increased use of electronic component like UPS, CFL, Computers and more there is disturbance in electrical system which imbalance the system and creates problem like

• Voltage sags and surges,
• Power interruptions,
• Low power factor
• Harmonic distortions,
• Ground loops,
• High speed transients,
• Electrical noise,
• Lightning damage

Load Monitoring Services

What to monitor & record?

• The process is similar to a doctor using a ECG monitor to record the quality of heartbeat by converting it to electrical signals for one’s heart.
• Monitoring will provide us with valuable data; however the data needs to be interpreted and applied to the particular equipment/situations for arriving at right decisions
• Recording the power parameters like, Current , Voltages kW, kVA, kVAR ,THDsetc. for their peak, average on daily or weekly basis etc on the desired feeders.

Why should customer opt for it?

• Over time, gradual changes in loads on power system can result in the overloading of electrical network leaving the distribution equipment in inadequate position than what originally it had been designed for. This can result in compromised safety margins and tolerances resulting in sudden tripping of protection equipment.
• Unmonitored changes can cause the gradual degradation of the electrical and electronic components due to heating power system, which can result in untimely damage to equipments and power system itself.
• Medium to large commercial and industrial customers usually find very difficult to monitor and control their load changes. The Load dynamics keeps on changing as per seasons, orders/ sales, production capacities etc. Manual monitoring in such situations may not be suffice.

NECPL offer the precise LMR service

• NECPL can provide specialized service locally as well from remote locations to collect Power parameters . It can be from various measurements points inside the same plant/building or from multiple locations at different plants of same organization. The data can collected at centralized location through Web based software or by manual downloading at each site as per scope of work.
• We shall examine your company’s power system in meeting the demands of the electrical equipment &suggest if any changes are required.
• Measuring and monitoring Service will be provided to the customers according to theirrequirements which can be for12 Hours, 24 Hours, 7 days or up to 30 days period depending upon their occupancy, work schedule etc. like in Banks, Offices, Call centers and Industries.

Benefits of NECPL LMR

• Offer LMR with specialized meters and software tools for customers to analyze their load cycles with energy requirements to make informed decisions regarding up gradation of their network and to identify cost-saving measures.
• Demand charges can be reduced from rescheduling load usage during peak load periods with various calculations provided on time of usage or other factors as per customer utility billing scheme.

Comprehensive Energy Audits

What exactly is an Energy Audit?

An Energy Audit is an assessment of how much energy a premise/factory/building consumes, combined with suggestions on how you can make yourself more energy-efficient. An audit shows where you are losing energy which can be avoided, and how your insulation, heating,cooling systems, lighting systems, electrical systems and appliances, could be made more efficient.



NECPL offer its specialized Energy Audit Service

• Energy Audit will be divided into three categories;


• Category I shall be the Baseline study for benchmarking.


• Category II shall be Detailed Energy Audit and Analysis.


• Category III shall be Investment Grade Energy Audit


• Post Audit Implementation of Energy Saving Proposals.


• Provide accurate & detailed report on potential of energy savings after evaluating the performance of all equipments for example :
  
  
  
  • Electrical
  
  
  • Thermal
  
  
  • Lighting Systems
  
  
  • Electrical Systems, Heaters
  
  
  • Transformers
  
  
  • Power Quality of Incoming and distribution points
  
  
  • DG sets
  
  
  • Steam Systems
  
  
  • Refrigeration Systems, AHU, Chillers, HVAC,VAM, Ventilation System
  
  
  • Hydraulic Systems
  
  
  • Fans, Blowers& Pumps
  
  
  • Compressed Air Systems
  
  
  • Cooling Tower
  
  
  • Heat Exchangers
  
  
  • Furnaces, Boilers, Ovens etc.

Benefits of Energy Audit offered by NECPL

• Reasonably priced energy audit


• Exclusive customer focus, i.e., one team for one customer at one time for giving timely & dedicated service.


• Good Quality & Unbiased Energy Audit reports

power quality analysis

NAAC ENERGY offers specialized services in the field of Power Quality Studies and Analysis.The objectives of our services can be different as per each customer specific requirements power quality requirement.

NECPL has vast experience and in the field. It has carried out more than 1200 PQ studies in last few years and offered successful solutions to many customers all over India and abroad.

Many Industrial and Commercial users from small, medium to large scale have gained immensely in terms of energy saving & improved efficiency of Network with recommendation and solutions offered by us. The Objective of these PQ studies is to identify and offer following

• Finding out reason for any operational problem in the network like tripping of switchgears, burning of Electronic Components, sudden breakdowns, glitches in software and communication or any other anomaly suspected to be because of poor power quality conditions. Their impact on maintenance cost and product/service quality is also analyzed.


• Possible Solutions to rectify the customer PQ problem with their cost analysis.


• Analyzing Network losses due to power quality