Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 107 views

    Capacitor Bank PDF

    Uploaded by

    sapnaadiyodi
    The document discusses the benefits and specifications of using a 7% detuned reactor in a power factor correction capacitor bank. Some key benefits include prolonging the life of capacitors, preventing fuse blowing or tripping, and reducing harmonics. Specifications for a 7% detuned reactor include being able to handle 150% rated current, inductance tolerance of less than 3%, and withstanding 175% rated current without saturation. Dimensions and weights are provided for reactors used with different sized capacitors.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd

    Capacitor Bank PDF

    Uploaded by

    sapnaadiyodi
    107 views2 pages
    The document discusses the benefits and specifications of using a 7% detuned reactor in a power factor correction capacitor bank. Some key benefits include prolonging the life of capacitors, preventing fuse blowing or tripping, and reducing harmonics. Specifications for a 7% detuned reactor include being able to handle 150% rated current, inductance tolerance of less than 3%, and withstanding 175% rated current without saturation. Dimensions and weights are provided for reactors used with different sized capacitors.

    Original Description:

    detuned reator

    Original Title

    capacitor bank.pdf

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The document discusses the benefits and specifications of using a 7% detuned reactor in a power factor correction capacitor bank. Some key benefits include prolonging the life of capacitors, preventing fuse blowing or tripping, and reducing harmonics. Specifications for a 7% detuned reactor include being able to handle 150% rated current, inductance tolerance of less than 3%, and withstanding 175% rated current without saturation. Dimensions and weights are provided for reactors used with different sized capacitors.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    107 views2 pages

    Capacitor Bank PDF

    Uploaded by

    sapnaadiyodi
    The document discusses the benefits and specifications of using a 7% detuned reactor in a power factor correction capacitor bank. Some key benefits include prolonging the life of capacitors, preventing fuse blowing or tripping, and reducing harmonics. Specifications for a 7% detuned reactor include being able to handle 150% rated current, inductance tolerance of less than 3%, and withstanding 175% rated current without saturation. Dimensions and weights are provided for reactors used with different sized capacitors.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    You are on page 1of 2

    7% Detuned reactor

    for use in PF correction capacitor bank

    Why use a harmonic filter reactor in a power factor correction capacitor bank?
    1. Capacitor are required to improve power factor, and possible system interaction may occur with the installation of a plain capacitor bank. 2. Permissible distortion limits of the local utility or IEEE-519 are exceeded, and filters are required to reduced them. 3. A combination of 1 & 2 above, whereby capacitor are required to improve power factor and with the addition of the capacitors, permissible distortion limits are exceeded.

    Benefit of using

    De-tuned reactor.

    1. Pro-long the life of power factor capacitor by reducing overheating, or fuse failure. 2. Prevent nuisance input fuse blowing or circuit breaker tripping. 3. Reduce over heating of transformer. 4. Reduce the harmonic current in the electrical supply system. 5. Addressing the harmonic problems created by non-linear load such as AFD's, AC-DC converter, DC drives, welding m/c etc. ** The use of specific filtering factor requires careful system analysis. As a general rule, filtering factor p=7% is used where imported harmonics from the power source is the main concern.

    Specification of

    De-tuned reactor p=7%.

    1. The reactor is designed to be able to handle 150% rated current. 2. Harmonic current handling capacity (for p=7% de-tuned reactor): I1 = 1.06 Ic ( fundamental current ) I3 = 1.04 x I1 ( 3rd harmonic. ) I5 = 1.31 x I1 ( 5th harmonic. ) I7 = 1.13 x I1 ( 7th harmonic. ) I max =1.5 x I1 3. Inductance tolerance is manufactured to be less than 3%, for admissible capacitor tolerance of 5%. 4. Reactor Linearity Reactors still have 100% of their nominal inductance at 150% of their rated current. This assures maximum filtering of distortion even in the presence of severe harmonics and best absorption of surges. 5. Saturation of iron core: The reactor will not saturated (a drop of 10% of the inductance value) at 175% of rated current. 6. Design: comply to IEC 289. 7. Insulation class - Class H 180C. 8. Operating temperature: 90C max. temperature rise at ambient temperature of 40C. Thermostat at 135C is fitted to the coil windings for overload protection. 9. Testing: Insulation strength tested at 2.5kV. 10.Noise level: below 40db. - reactor will not harm. *** Other specification available upon request.

    Below apply to p=7% reactor to be used with 525V 50Hz capacitor at 415V 50Hz only. ** Filtering %p is only achieved by using a detuned reactor with the specified corresponding capacitor only. Use of other non-matching value capacitor with the reactor voids all warranty.
    1. Rated voltage: Ur = 600V 50Hz. 2. De-tuning (filtering factor): p=7.0% or Fres. = 189Hz. 3. Cooling: natural cooling. Exhaust fan may be needed in totally enclosed casing. 4. Protection class: IP=00 (open type) 5. Installation: Approximated 50mm (2") is needed to adjacent part. This is due to the magnetic flux-line caused by the reactor. 6. Vibration: Reactor are subjected to vibration due to its magnetic flux. - Strong support and sometimes vibration pad may be needed.

    Capacitor kVAr 10 15 20 25 30 40 50 60 70 80 100 120 150 200

    IN Amp 12 17 22 27 33 44 55 67 76 89 110 133 165 220

    Pv(max) Watt 80 108 117 120 155 160 170 175 180 185 205 220 240 280

    A mm 225 225 225 225 200 200 200 255 255 255 255 255 310 335

    B mm 210 210 210 210 240 240 240 306 306 306 306 306 306 380

    C mm 130 133 138 140 140 145 155 210 235 245 260 290 330 330

    D mm 67 69 74 80 87 100 103 113 123 137 153 182 254 294

    E mm 116 116 116 116 136 136 170 170 170 170 170 170 153 168

    H-holes mm 10 10 10 10 10 10 10 10 10 10 10 10 12 12

    Wt kg 10 12.5 13.5 15 18 24 32 36 40 53 61 67 75 90

    Design type Type A Type A Type A Type A Type B Type B Type B Type B Type B Type B Type B Type B Type C Type C

    ** Specification subject to change without prior notice. **

    You might also like