MAGNEWIN ENERGY PVT. LTD. Kupwad, Sangli, Maharashtra

General Information Scope Medium Frequency Water Cooled Capacitors from 1 kV up to maximum 5000 volts, to maximum 7000 kVAr and frequency up to 50 kilocycles for indoor use. • with dead casing, open terminal (2 bushings). • with live casing, open terminal (1 bushing). Applicable Standards • IEC 60110-1 Capacitors for Induction Heating & Melting application. • IS 9251 Capacitors for inductive heat generating plants operating at    frequencies between 40 and 24000 Hz • DIN EN 60110-1 Power Capacitor for Induction Heating Installations. • VDE 05650-9:1999-09 Ratings • Voltage: Up to 5kV • Output Capacity: Up to 10000 kVAr • Frequency: Up to 50 kHz • Mounting: Suitable for both Horizontal / Vertical • Container: Imported Embossed Aluminium sheet. • Construction: Live / Isolated (Dead) container Safety Over pressure dis-connector provided with NC contact. Tests Each and every Capacitor is subjected to Routine tests in accordance to IEC 60110-1. • Measurement of Capacitance. • Measurement of Dielectric Loss angle @ 50Hz. • Voltage test between terminals • Voltage test between terminals & container • Sealing Test Features • Low losses < 0.8 watts per kVAr• World Class Raw Materials • Manufactured in state of art infrastructure• Volume Optimized and highly Reliable • Trouble free Long life performance • Environmentally friendly.

Voltage : Up to 5kV

Steep fronted waves (lightning or switching) on transmission as well as distribution networks, can cause inter turn insulation failure of rotary machines and transformers. Surge Capacitors provide surge protection to high voltage motors, transformers and generators by limiting the voltage rise. Hence Surge Capacitors are used as protective devices for protection of power system equipments. Surge Capacitors are designed taking into consideration its application to operate under severe stringent power system conditions. Connecting surge Capacitors between line and ground at the motor / transformer / generator terminals in shunt, prevent the equipments from damage due to voltage surges. For a more comprehensive protection scheme, Surge Capacitors may be used in conjunction with surge arrester. This surge pack modifies both the wave shape and magnitude. Lightning arrester takes no current from the line during normal operation. When a surge occurs, the arrester turns on to provide a discharge path. When the surge disappears, the arrester turns off. The main advantage of a Capacitor is that there is no time delay in turning on as it always conducts. The disadvantage is that the amount of current it can handle is limited to a few amps, depending on the Surge Voltage. For this reason, an arrester should always be installed with a Capacitor to protect Capacitor from intense surges.These Capacitors are virtually maintenance free, needing only occasional cleaning of bushings and painted surface and ensuring adequate tightening of electrical connections. Temperature rise of surge Capacitor is to be monitored continuously. Surge Capacitors are never protected with any type of fuse or any protection as itself is a protective device.    Features • Low losses < 0.8 watts per kVAr• World Class Raw Materials • Manufactured in state of art infrastructure• Volume Optimized and highly Reliable • Trouble free Long life performance • Low noise level • Environmentally friendly.    Ratings Single Phase Capacitors units • 0.125 to 0.5 uF • Up to 40 kV • 50 Hz or 60 Hz • Indoor or outdoor use.Applicable Standards I5:11548Temperature range Capacitors are designed for working temperature between -10°C to +55°C Mounting Surge Capacitors may be mounted vertically or horizontally as required by the customer.

General Information Magnewin make capacitors are manufactured to comply IEC 60871 and BIS 13925 standards using latest technology, materials and state of art plant and machinery. Experienced and skilled workmanship enable's to manufacture highly reliable and long life performance capacitors in line with International standards. Applications • Fixed Power Factor Corrections using individual Capacitor• Dynamic Automatic Power Factor Correction (APFC)• Tuned and detuned Passive filters • Harmonic Filter applications with loads viz. UPS, VFD, Furnaces and converters, etc. Standard Ratings 50,75,100,125,150,175,200,220,250,264, 275,300,350,400,500,750, 1000 KVAr in 10 /3ØVoltage: 3.3, 3.6, 4.2, 6.6, 6.99, 7.2, 7.3, 8, 9.56, 10.56, 11, 11.55,22,24 kV Frequency: 50/60 Hz Other ratings can be supplied on request.De-tuned Harmonic ReactorAir cored, Aluminium wound, dry type Reactors are used along with Capacitors in De-tuned harmonic filter applications. Rating: Detuned Reactors are available in 6% and 13 % ratings. Features • Compact size and convenient mounting • Low losses • Low noise level • Tested as per IS 5553 and IEC 60076 - 6• Environmentally friendly. • Trouble free Long life performance• Volume Optimized and highly Reliable• Manufactured in state of art infrastructure• World Class Raw Materials     Testing All the Capacitors are tested as per IEC 60871 and IS 13925 standards in our well-equipped In House Test Laboratory. Magnewin Capacitors are type tested at regular intervals as per IEC 60871 and IS 13925 standards. Magnewin Capacitors have also been Endurance tested as per IEC 60871-2 at NABL accredited independent National Laboratory. Protection Each element is protected with an individual encapsulated fuse complying with IEC 60871-4. The sizing of fuse is calculated using specially developed software. Internal fuses are designed and placed to isolate only the faulty element without affecting the adjacent healthy element, allowing uninterrupted operation of the Capacitor unit and the bank. Magnewin has developed the In-House test facility to conduct the Internal Fuse test in accordance to IEC 60871- 4. External fused Capacitors can also be supplied on specific request. Capacitor Banks / MV APFC Panels Indoor Sheet metal cubicles up to 33 KV for switched Capacitors / Harmonic filters / Automatic P F Control Panels and structural open type substation banks up to 145 KV network are in-house fabricated and assembled.

Features • Bi-axially oriented both side hazy(rough) polypropylene   film to ensure good oil impregnation• Capacitor grade aluminum foil for high current   carrying capacity• No reduce in output• Low Losses < 0.3 watts per kVAr• Suitable for flexi banking• High peak inrush current withstand capability• Specially vacuum processed, oil impregnated design • Suitable for frequent switching operation   Applicable standards IS 13585 (Part 1) : 2012 IEC 60931-1 :1998 1Ø/3Ø APP (Film + Foil) type Heavy Duty Capacitor for Power Factor Improvement& Harmonic Filtering.   Principles of Power Factor Correction A vast majority of electrical loads in low voltage industrial installations are inductive in nature. Typical examples are motors, transformers, drives & fluorescent lighting. Such loads consume both active and reactive power. The active power is used by the load to meet its real output requirements whereas reactive power is used to meet its magnetic field requirements.The reactive power (inductive) is always 90° lagging with respect to active power as shown in figure 1. Figure 2 & 3 show the flow of kW, kVAr and kVA in a network before and after installation of Capacitors. Active and Reactive power always flow in every electrical installation. This means that the supply system has to be capable of supplying both active and reactive power. The supply of reactive power from the system results in reduced efficiency due to• Increased current flow for a given load • Higher voltage drops in the system• Increase in the losses of Transformers, Switchgear and Cables • Higher KVA demand from supply system as given in figure 2 • Higher electricity cost due to levy of penalties / loss of incentives   It is therefore necessary to reduce & manage the flow of reactive power to achieve higher efficiency of the electrical system and reduction in cost of electricity consumed. The quick & cost effective method of reducing and managing reactive power is through improvement of power factor by installing Power Capacitors. Concept of reduction in kVA demand from the system is shown in figure 3.   Application PF correction in LV network LV Dynamic Automatic power factor correction panels (APFC) (Contactor / Thyristor switched) Fixed power factor correction Tuned and detuned Harmonic filters   Safety Internal element fuse design Non polluting, nonhazardous NPCB Capacitor fluid Externally fitted Discharge resistors Steel enclosure for protection from live terminals Standard ratings of Capacitors Output: 5, 7.5, 10, 12.5, 15,20,25 KVAr / 41 S and 440 Volts with 151 and CE marking Higher ratings can be supplied on request. Effect of temperature rise Every Capacitor is designed for a specific lowest and highest ambient temperature. Life of Capacitor decreases when operated beyond the limits. Capacitor should not be exposed to heat and must be kept in a well- ventilated position to avoid overheating. Capacitors used in conjunction with series reactor in detuned filter application, the location of reactor affects the surrounding air temperature, Since the reactor radiates heat, it should be placed always above the Capacitor or in a separate column in order to protect capacitors from excessive heating. It is always recommended to adopt forced air cooling in detuned reactor filter panels.   Effect of over currentThe maximum allowed RMS current is given in technical data ofthe Capacitor. Operating the Capacitor beyond, will reduce the life of the Capacitor. Higher current drawn by Capacitor means increased losses. This results in heating of the Capacitor, thereby, reducing its life. Effect of over voltage Operating the Capacitor beyond permissible limits of over voltage will damage the Capacitor. Some levels of over voltages are accepted only for a short duration but they reduce the life of the Capacitor. Such levels must not occur for more than 200 times in the life time of a Capacitor.   Protection of Capacitors Capacitors have to be protected against short circuit currents by using external fuses having adequate current rating. It is recommended to use HRC fuses, having current rating of 2 -2.5 times the rated current of Capacitor. Switching of Capacitors When the Capacitor is switched in to the network, high inrush currents flow. Fast acting contactors which are capable of handling the high current level should be used. Capacitor duty contactors (connected with resistors) are better suited, since they damp the inrush currents. Contactor / switch gear ratings should be minimum 1.5 times of the rated current of Capacitors. Discharging Capacitors Capacitor must be discharged before it is re-energized to avoid superimposition of voltage over residual voltage. This helps to increase the life of Capacitor. The Capacitor voltage must reduce to less than 75V within 3 minutes. This is achieved by connecting an external discharge resistor across the Capacitor terminals. No disconnecting device be connected between the Capacitor and discharge resistor.  Earthing of Capacitor An Earthing terminal has been provided on the body of the Capacitor to be used for earthing. It is recommended to earth the Capacitor for safety purpose. Resonance Capacitors connected in harmonic rich environment are prone to resonance related problems, leading to failure of Capacitors. Under such conditions detuned reactors in series with Capacitors are preferred. Maintenance The Capacitors should be kept in a well- ventilated area, free from any corrosive medium. Terminal connections should be tightened as recommended and cleaned regularly for better performance and enhanced life   De-tuned Harmonic Reactor Iron Cored Reactors are used along with Capacitors in De-tuned harmonic filter applications. RatingDetuned Reactors are available in 5%, 6%, 7% and 14 % ratings.Features • Linearity up to 200% • Compact size and convenient mounting • Low losses • Low noise level • Tested as per IS 5553 and IEC 60076 - 6 Safety • Thermal switch provided to protect the Reactor from overheating. • E class insulation

Features • World Class Raw Materials• Manufactured in state of art infrastructure• Low inductance (ESL)• Low series risistance ( ESR)• Volume Optimized and highly Reliable• Trouble free Long life performance• Environmental Friendly Applicable Standards IEC 61071-2007 and IS 13666:1993 Capacitors in accordance with other standards / against specifications can be manufactured upon request. Applications • Defense • Pulse forming network • Medical equipments • Cable fault locators • Impulse generators • Metal forming • Magnetizers / Demagnetizers    Ratings • Voltage up to 150 kV DC • Inductance < 25 nH • Energy upto 50 Kilo Joules • Voltage reversal 20% to 80% • Peak current 500 kA • PRR 10 PPS and above Construction • Live case • Dead case • Syllac type bushing • Double bushing • Vertical/Horizontal mountingCategories Energy Storage Capacitors are classified into different categories depending on maximum peak current, repetition rate, working temperature, storage temperature, or inductance values. Classification Based on Max. Peak Current 1 Max. Peak Current 25 kA 2 Max. Peak Current 50 kA 3 Max. Peak Current 200 kA 4 Max. Peak Current 500 kA   Classification Based on Repetition Rate 1 Repetition - Rate - A Up to - 5 PPM 2 Repetition - Rate - B Up to - 1 PPS 3 Repetition - Rate - C Up to - 10 PPS 4 Repetition - Rate - D Up to - 100 PPS 5 Repetition - Rate - E Over - 100 PPS Classification Based on ambient Temp. 1 Category - L - 0 to 45° C 2 Category - H - 0 to 50° C Classification Based on Storage ambient Temp. 1 Category - L1 - 0 to 70° C 2 Category - H1 - 0 to 50° C Classification Based on Inductance value1 Category 1 - 15 - to - 60 nH 2 Category 2 - 61 - to - 150 nH 3 Category 3 - above - 150 nH (Low Inductance Capacitors can also be supplied against specific requests.)Temperature range Capacitors are designed for operation between -40°C to +55°C.