دستگاه کاهنده برق سه فاز
دستگاه کاهنده برق سه فاز
فروش ==>> کلیک کنید=> دستگاه کاهنده برق سه فاز. ورود به فروشگاه سایت
دستگاه کاهنده برق سه فاز
•Soft start و Soft Stop بدون تغییر در دور و فرکانس موتور با قابلیت استارت زیر بار
•دارای برنامه ( Motor Energy Control(MEC جهت صرفه جویی مصرف برق تا ۳۵% بدون تغییر در فرکانس و دورموتور
•برگشت سرمایه Pay Back عموماً بین ۱ تا ۳ سال
•کاهش گرما تا ۳۰% ، لرزش و نویزهای موتور
•جلوگیری از ضربات چکشی یا Water Hammer بویژه در پمپهای اب
•کنترل و کاهش هزینه دیماند با استفاده از کاهش جریان راه اندازی تا بیش از ۵۰%
•بهبود Cosφ موتور ( نه اصلاح آن) و افزایش بازده موتور
•کاهش کابل مصرفی تا ۵۰% در زمان نصب
•بدون هیچگونه جرقه در زمان کنتاکت
•کنترل و مدیریت هوشمند انواع سیستم های تهویه مطبوع جهت کاهش مصرف تا ۳۵ %
•کنترل و مدیریت هوشـــمند انواع کمپرســورهــا جهت کاهش مصرف انرژی و هزینه های نگهداری و … تا ۳۵%
•نصب آسان و بدون هرگونه Setting و Set Up دوره ای
•حذف هرگونه کنتاکتور ، کنترل فاز ، بیمتال و … از تابلو قدرت و حفاظت
•افزایش طول عمر موتور و کاهش هزینه های نگهداری
•رنـج قــدرت ۴-۳۰ Amps-220V تک فاز 2.2 kW-1450 kW-380 to 690V سه فاز
توضیحات محصول:
- مناسب برای مصارف صنعتی و مشترکین که تا ۵۰۰ آمپر مصرف می کنند.
- دستگاه بدون تغییر در سیم کشی برق ساختمان و بعد از کنتور نصب می گردد.
(۱)Capacitor Bank arrangement.
The capacitor equipment, unless being supplied in the LV distributionsection of a Package Substation, It is mounted in a free standing enclosure designed for indoor/outdoor use. Thescope of supply include, but not be limited to, the following:
a) Capacitor units, comprising several capacitor elements connected in a three phase arrangement enclosed in aluminum case, with their terminals brought out.
b) MCCB
c) Switching devices to connect the capacitor sub-banks to the supply. The switching of the capacitors are in response to the changing reactive load.
d) Reactive power regulator and controller and associated cabling.
e) Protection equipment and all associated cabling.
f) All CT’s required to implement the scheme.
g) All primary and secondary cabling.
(۲)Capacitor Elements
The capacitors elements are preferablybe wound from a metallized polypropylene film dielectric to produce a dry type cell. The wound dielectric/electrode coil is contained within a suitable case with wired out connections. The case is flexible to accommodate changes in the internal pressure.
(۳)Capacitor Units.
The single capacitor elements are assembled into delta connected groups of 3, as many groups of 3 capacitors being connected to achieve the required capacitance of the capacitor unit. The assemble group of capacitor elements are contained within aluminumcase with the terminals brought out through bushings. The bushings are of well processed porcelain or cast resin, approved for outdooruse at continuous voltage, and hermetically sealed to the aluminum case. The terminals are heavily tinned and suitable for standard copper conductors. All capacitor units are provided with an insulating terminal cover.
The clearance between two capacitor units is not less than 5 cm.
Discharge resistors are connected across the external terminals, which suitably rated to drain the residual voltage to 50 volts within 60 seconds after the capacitor is disconnected from the supply.
(۴)Moulded case circuit breakers.
If a Moulded Case Circuit Breakers (MCCB) is used as the mains supply isolator to the capacitor bank then it’s circuit breaker mechanismsshall be of the tripfree pattern to prevent closing the breaker onto a faulty circuit, and engraved to indicate ‘ON/OFF’ position and rated current.
The MCCB ensure protection against circuit overloads and against short circuits bymeans of electronic protection thermal and instantaneous magnetic trips.
all MCCB can be adjustable to rated current of capacitor bank thermal protection adjustment range (0.5 ÷۱ ) In
magnetic protection adjustment range (2 ÷ ≥ ۱۰) In .
The MCCB have the feature to limit the fault current to the rating of the MCCB.
for capacitor banks rated at 140 kvar the rated current for MCCB 400 A , ICU ≥۴۵ KA.
ICS ≥ ۵۰% ICU for all MCCB.
(۵)AC Magnetic Contactors.
Contactors used for power factor correction including limiting resistor to avoid inrush current
Contactors used for switching the capacitor sub-banks are designed to withstand the surge currents associated with capacitive switching.Means provided to prevent manual operationof the contactor. Terminals and contacts are shrouded to prevent inadvertent finger contact.
All switchgear and protective devices and their connections are capable of carrying continuously 1.5 times the rated capacity of the capacitor unit to which they are connected, inaccordance with IEC 831 section6.
Operating voltage for coil of contactors 220 v ± ۱۰% .
(۶) Reactive Power Regulator.
The capacitor banks are equipped with reactive power controller which will detect and measure the reactive power on the LV network and initiate a control unit to switch the appropriate number of capacitorsub banks in or out. There is a manual on/off push button provided which will take control of the sub bank to allow switching to be under operator control. Indication and push buttons for manual operationof each sub bank are provided.
The controller select the sub bank to be switched in and means provided to vary the duty cycle to ensure a reasonable distributionof switching operations between different sub banks.
The system is designed to minimize disturbance on the system and to avoid hunting. The controller is automatically switch off the capacitor bank in the event of loss of the 20 kV supply and be capable of restarting the capacitor bank automatically on restoration of thesupply.
v The regulator measures and display the following ( active,reactive power, current, voltage, harmonies, power factor, frequency, capacitive load, number of stage in service………..).
v The regulator protects the capacitor bank if the harmonies is equal or more than ( 15 %).
v The regulator selects the suitable capacitor unit to put it in service with regardingto ( work’s hours and the required reactive power).
v Operating voltage 380 V with suitable protection.
v Regulator can be adjustment a
The Multilin DGCC Capacitor Bank Controller enables a utility to optimize operational planning and asset tracking through 3-Phase power quality monitoring, and to reduce system downtime. The Multilin Capacitor Bank Controller is a 3-Phase Capacitor Bank Controller that is compatible with most Capacitor Bank Switches, including Cooper, Joslyn, and Trinetics.
