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Updates found with 'automatic power factor controller panel'

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Updates found with 'automatic power factor controller panel'

Servo Controlled Voltage Stabiliser The IE Rules 1956 stipulated that the supplier shall supply voltage at the commencement of supply limiting the variation to 6 % of the declared voltage in case of LV/MV distribution system and +6 % / -9 % in case of HV distribution system. But generally it is observed that very low voltage during the day & normal voltage during night in residential area and very low voltage during day and very high voltage during night in industrial areas. As most of the equipment are designed to operate for a voltage variation of ±10 %, automatic voltage regulator is required. Generally two types of regulators are available: STEP RELAY CONTROL: This type of AVR can generally maintain output voltage within ±10 % of the standard output voltage. For wide variation in the voltage, many steps are involved and it may complicate and may also result in voltage surges to the connected equipment. The losses in an electronic stabilizer can be reduced by use of toroidal core transformer. STEP-LESS SERVO CONTROLLED STABILISER This type of stabilizer can regulate the output voltage within ±1 % of the standard voltage and here the variation in the voltage is smooth without steps / interruptions. This type of stabiliser can be designed for wide variation of the voltage with ease. It also have reasonably quick correction time. The Servo Stabilizer find use in telecom equipment, photocopier machines, offset printing presses, AC plants, moulding and machine tools machine, Scientific equipment etc. The voltage regulators are selected based on the following requirements: Input Voltage Variation: Standard ranges are 300 - 460 V, 290 - 470 V, 245 - 470 V for three phase and 160 - 260 V, 170 - 270 V and 140 - 270 V for single phase systems. Output Voltage Variation: Generally taken as 240 ± 1 %. Capacity: Stabilisers are normally designed to take 20 % overload for 60 minute, 50 % overload for 30 minutes and 100 % overload for few minutes. This overloading can take care of short time overloads, transformer inrush currents, motor starting currents and handling of thyristor loads. Type of load: It may be balanced three phase or unbalanced three phase. In the Telecom Department generally unbalanced load condition and unequal input voltage is considered. SERVO STABILISER OPERATING PRINCIPLE: The schematic diagram of the servo is given in figure below. It consists of Step-less variable toroidal wound a motor driven auto-transformer also known as dimmer-stat or variac. Reversible, instantaneous start synchronous motor (Servo motor) Buck-boost transformer (Series transformer) Power contactor Electronic control system Metering and indication panel Protection and cutoff system ( if any) Housing suitable for air/oil cooling. The buck-boost transformer is a series control transformer interposed between input and output. The primary is fed through the Auto transformer output. Depending upon the variation in the input voltage variation, a voltage is induced in this transformer in-phase or out of phase with reference to the input voltage so as to regulate the voltage at a steady value. Thus both step up and step down voltages are obtained through the same transformer tapping. The electronic control system monitors the output voltage continuously and based on the variation of output voltage the servo motor is driven in the forward and reverse direction to vary the output of the Auto transformer which in turn changes the voltage compensation at the buck/boost transformers. The control system monitors the voltage between the phase and neutral for each phase and regulates the voltage on each phase. However the regulation of voltages between the phases may be slightly different based on the actual loading of the individual phases. The single phase stabilizer employs one variable Auto transformer driven by a servo motor and one sensing circuit. The balanced type three phase stabilizer also employs single control circuit. Here the three variable auto transformers are mechanically coupled and are driven by a single motor. The sensing is done in one of the three phases and the other two are corrected automatically. These stabilizers can be used with loads where unbalance is not much and lesser accuracy in output is acceptable. For the unbalanced load and unequal input voltages, the three phase servo voltage stabilizer consists of three sets of identical components each set corresponding to a single phase system with the corresponding control system and with a common output contactor housed in the same enclosure for smaller capacities and in separate enclosure for very high ratings. The main electrical systems are connected in Star to form a three phase system with a common neutral between input and output. In case of oil cooled system, the Auto transformer and buck-boost transformers are immersed in oil. STANDARD FEATURES: Output voltage regulation within ±1 % of the load voltage. A provision is also available to vary the settings to adjust the output voltage at the desired value within ±5 V of the rated voltage. To cutoff the output at high and low input voltages beyond the designated voltages with audio and visual alarm. Overload protection by isolating the load in the stabilizer with visual and audio alarm. Tripping arrangement in case of any phase failure. Auto/Manual provision for restarting the stabilizer after tripping due to any reason. Micro limit switches to cutoff the power supply to the servo motor while it reaches the extreme low voltage and extreme high voltage points.
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Sakthi Electrical Control (Brand name Sakthi) is iso 9001:2008 certified company own by Mr S Thilagar (Electronics & Communication engineer) established in 2001.We manufacture Automatic/Servo Controlled Voltage Stabilizers, Isolation Transformers (Range 1KVA to 3000 KVA) as per BIS (Bureau Of Indian Standards) specification IS:9815 Part 1 and certified by DGS& D.We have a PAN India presence & and we are always ready to serve clients who are Quality Conscious. We are known in the industry for our quick response and after sales service network.We are one of the largest supplier to the Defense Projects in India.• We are available on Rate Contract with Directorate General of Supplies & Disposals (DGS& D) RC Contract No. SMC/ME-5/RC-B3090000/0416/05/OA245/587 Valid from 06-AUG-15 To 31-JUL-16 for Servo Voltage Stabilizers.• We are approved by Engineer In Chief Branch (MES) (ENC)Army HQ vide their letter no.43285/119R/2003/04/Des2 dated 14 November 2006.• We have established a quality management system that is in compliance with the international quality system standard ISO 9001-2008.• We are also the part of the Dun & Bradstreet Global Database and has been assigned the D& B D-U-N-S NO. 91-670-4173.Our Vision:-“Once a customer always a friend”• We believe in Ethics & Commitment to high quality standards.• We want to underline that whatever we commit about quality, we always deliver the same.Company Record: Our manufacturing unit is in approved industrial area, having• MCD (Municipal Corporation of Coimbatore)• DPCC (Delhi Pollution Control Certificate)• S.S.I.(Small Scale Industries Registration )• VAT (Value Added Tax)• ESI (Employees' State Insurance)• Trademark & Excise registrations.Testing facility :Tested as per BIS 9815:Part1 parameters with testing meters duly calibrated by NABL(National Accreditation Board for Testing and Calibration Laboratories approved Labs & time to time third party inspections from CEIL (Certification Engineers International Ltd.), MES (Military Engineer Services), DGSND (Director General Of Supplies & Disposals ) keeps our standards high. Further acceptance test are conducted on every unit and test report issued as-• Physical Examination (Clause No. 6 & 10)• Insulation Resistance Test (Clause No. 11.4)• High Voltage Test (Clause No. 11.5)• Provision For Earthing (Clause No. 7.2)• Leakage Current Test (Clause No. 7.3)• Output Voltage Test (Clause No. 11.6)• No Load Current Test (Clause No. 11.7 & 9.5)• Measurement Of No Load Losses (Clause No.11.8 )• Measurement Of No Load Losses & Efficiency (Clause 11.9 & 9.6)• Induced Voltage Test (Clause No. 11.10)For more information: +91 9786077355 or info@sakthistabilizer.in.Why Sakthi?We have delivered /designed our products for extreme weather conditions of India like our products are running successfully in -• Srinagar, Jammu & Kashmir (Extreme Cold), • Siliguri, West Bengal (Cold and Humid), • Barmer, Rajasthan (Extreme hot), • Cochin, Kerala (Highly Humid), We check every control system of our stabilizers in humidity chamber to ensure that they withstand extreme weather conditions of our country. Please Note:- Copy of type test report 600 KVA Servo Oil Cooled Voltage Stabilizer issued by ETDC(Electronic Test and Development Centre), Ambala and CEIL(Certification Engineers International Ltd.; A wholly owned subsidiary of Engineer’s India Limited, A Government of India Undertaking) with our client list is attached.Prestigious Clientele :Government Sector-• VVIP’s residence of Honorable Lok Sabha / Rajya Sabha Members• Member of Parliament• Honorable Air Chief Marshal• Defense/Domestic Airports• Central Public Works Department• Delhi Development Authority• Special Protection Group• Sulab International Social Service Organization• Delhi Jal Board• Defense Research & Development Organization• Indian Archaeological Department etc.Private Sector-• Aakash Educational Services Ltd• AFP Manufacturing Company• Ambuja Cement Ltd.• Arise India Ltd.• Bikanervala Foods Private Ltd.• Brazil Embassy• Dhruv Global Associates• Ekta Shakti Foundation• Otis Elevators• Olympus Elevators• Rana Motors• Shapoorji Pallonji & Co Ltd.• University Of Kashmir• VLCC Institute etc.Winding Material : We manufacturer stabilizer in pure electrolyte Copper Wire/Strip.• Capacity check :Please feel free to come to our unit and do a self check or allow us to do a third party inspection complete tests as per BIS 9815:1994 Part 1 on full load . It will give you confidence in our products.• Manufacturing capacity :In every 28 hour our products installed somewhere in India.
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