DOCSLIB.ORG

United States Patent [191 [11] 4,081,853 Wickson [45] Mar

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
United States Patent [191 [11] 4,081,853 Wickson [45] Mar United States Patent [191 [11] 4,081,853 Wickson [45] Mar. 28, 1978 {75154 IOVERCURRENT PROTE CT ION ISYSTEM ' FOREIGN PATENTI DOCUMENTS nventor: Arthur K. Wickson Pa os Verdes Estates, Calif‘ ’ 476,607 8/1915 France ............................... .. 361/104 - _ . Primary Examiner-Harry E. Moose, Jr. [73] Asslgnee‘ it: gzgr%glicforporanon’ LOS Attorney, Agent, or Firm—Joel D. Talcott; Frank J. g ' ' Kowalski; Albert J. Miller [21] Appl. No.: 669,790 [57] ABSTRACI. [22] Flled: Mar‘ 23’ 1976 A plurality of fuses are connected in a general parallel [51] Int. C13z ................................... .. H02H 3/08 con?guration for protecting a circuit, the fuses being [52] US. Cl. .......................................... .. 361/104 serially connected with inductances of varying magni [58] Field of Search ................... .. 317/15, 14 B, 40 A, tude such that steady state current may be divided 317/50; 337/4, 6, 161, 162, 293; 361/104 equally among the fuses permitting the use of fuses of [5 6] References Cited lower rating. During an overcurrent surge, substantially the entire current overload is applied to each fuse in US PATENT DOCUMENTS turn so that the total elapsed time for opening the circuit 835,388 11/1906 Berg ........ .. 317/40 AX is less than with fuses alone 2,284,1l4 5/1942 Weichsel 317/40 A 2,672,540 3/1954 Dewey ............................... .. 337/293 11 Claims, 4 Drawing Figures Over current Protection US. Patent March 28, 1978 4,081,235 3 Fig. 1. Over current Protection 3s 42 32 BW/40 4e 48 14%,50 34 I g . 54 56 52 : 20 so 30 ‘0A 29 24 / ,4 / 74 42 68\ M /76 62 Flg- 3 662% so Zea/‘65o 64 7o __rY4\72 £56 2e /20 L4“ - {F2 Fig. 4. 4,081,853 , 1 2 protection system is greatly accelerated so that the time OVERCURRENT PROTECTION SYSTEM for opening the circuit is substantially reduced. Thus, This invention is directed to overcurrent protection by the use of inexpensive components, a sure and reli systems and more particularly to a novel system for use able fuse system is provided which is capable of rapidly in protecting sensitive components, such as semi-con disconnecting a load from the power source on occur ductors, against damage caused by excessive current, rence of a sudden overcurrent fault. the fuse system being designed to respond more quickly The advantages of the overcurrent protection system than fuses alone to a sudden increase in current above of this invention will be more readily apparent when the the continuous rated value of current for the circuit. following speci?cation is read in conjunction with the It is generally desirable in electrical systems to open appended drawings wherein: the circuit very quickly to interrupt an overcurrent FIG. 1 is a generally schematic view of an electrical condition. In some cases, however, it is critical that circuit in which the overcurrent protection system of circuit interruption occur in a very short time period. this invention may be used; For example, substantial advances have been made in FIG. 2 is a schematic view of a preferred embodiment controlling the application of power to loads, such as of overcurrent protection system of this invention; electrical motors, by using thyristors either singly or in FIG. 3 is a schematic view of an alternate embodi bridge or other combinations to control the application ment of the overcurrent protection system of this inven of power to the load. While the use of power thyristors tion; and is highly desirable, these semiconductor devices are FIG. 4 is a schematic view similar to FIG. 2 for illus destroyed by excessive current overloads of sufficient 20 trating the operation of the overcurrent protection sys duration and are expensive to replace. tem of this invention. Accordingly, fuses and other protective devices are Referring now to the drawings, FIG. 1 illustrates in connected in series with these power thyristors to pro simple schematic form an example of a circuit in which vide protection against damage due to overload cur an overcurrent protection system 10 in accordance with rents. However, the degree of protection provided by 25 this invention might be used. It will be understood, any protective device in response to the occurrence of however, that the overcurrent protection system 10 an overcurrent fault is dependent upon its ability to may be utilized in a wide variety of circuit applications. respond with suf?cient speed to prevent damage to the In this speci?c example, it is desired to utilize a three semiconductor device. phase alternating current power source 12 to provide a When a given overload current is suddenly applied to direct current output through terminals 14 for energiz a fuse, the elapsed time before the fuse link vaporizes is ing a suitable load (not shown). To accomplish this, a determined by Fr value or rating of the fuse. This rating thyristor bridge circuit 16 is used. Conductors 18 are is roughly a constant for the fuse and the vaporization connected between the AC power source 12 and the time for any current level through a particular fuse can thyristor bridge 16 to provide input voltage to the be determined by equating Ft to this rating. Any means 35 bridge. This three phase power output is converted in a that reduces this rating reduces the time for the link to well known manner to a direct current output fed vaporize and, accordingly, increases the protection of ' through output conductors 20 and 22 to the DC output the components in series with the fuse. Individual fuses terminals 14. have been designed, and are available, with low rating The overcurrent protection system 10 is interposed in values to provide the highest degree of protection, but 40 the conductor 20. It will be seen that only one overcur the minimum ratings that can be attained are limited by rent protection system 10 is required for protection of the electrical and thermal properties of materials that all six thyristors of the bridge 16 unlike prior art fuse are available for the construction of the fuse. systems which are generally only capable of protecting It is known in the prior art that a single fuse can be one or two thyristors due to insuf?cient sensitivity. replaced by a plurality of smaller fuses connected in 45 For optimum operation, the overcurrent protection parallel, e.g., a 500 amp fuse may be replaced by ?ve system 10 must have a very small resistance so as to not 100 amp fuses connected in parallel. However, the fuse utilize signi?cant power when the bridge 16 is being rating of the combination turns out to be approximately used to power a DC load. However, in the event of a the same as the rating of the single fuse because, al sudden overcurrent condition which could otherwise though the rating of each fuse is smaller, the overcur 50 damage one or more of the thyristors in the bridge 16, rent fault is divided among the fuses, e.g. a 1000 amp the overcurrent protection system 10 must open thev fault current would be divided 200 amps to each fuse, so circuit completely in a short enough time period to that the total time required for vaporizing all the fuses prevent any thyristor damage. to open the circuit is roughly the same'as the time re The overcurrent protection system 10 of this inven quired to vaporize a single 500 amp fuse. ‘ 55 tion. fully accomplishes these requirements and the pre In accordance with this invention, a single fuse is ferred embodiment is illustrated in FIG. 2. The overcur replaced by a plurality of smaller fuse connected in rent protection system 10 is connected to the conductor parallel. An inductor is connected in series with each 20 at junctions 24 and 26. A conductor 28 connects the fuse but one, the total inductance connected in series junction 24 through a fuse 30 and junctions 32 and 34 to with each fuse being of differing values so that upon the junction 26. The junction 24 is also connected by a occurrence of an overcurrent fault, the inductors intro conductor 36 through an inductor 38, a junction 40 and duce a high reactance into the circuit causing substan a fuse 42 to the junction 32. A conductor 44 runs from tially the entire overcurrent fault to be directed through the junction 40 through an inductor 46, a junction 48 the fuse having no series inductor associated therewith. and a fuse 50 to the junction 34. The junction 48 is in After this fuse rapidly vaporizes, substantially the entire 65 turn connected to the junction 26 by a conductor 52 overcurrent is directed through the fuse having the least through an inductor 54 and a fuse 56. ' value of inductive reactance in series therewith. In this In the preferred embodiment, the fit ratings of the manner, vaporization of all fuses in the overcurrent fuses 30, 42, 50 and56 are generally equal and the induc 4,081,853 3 4 tors 38, 46 and 54 have substantially equal values of if the inductor 74 had an inductance L, the inductor 80 inductance and a very small value of DC resistance. would have an inductance 2L and the inductor 72 When the overcurrent protection system 10 of FIG. 2 would have an inductance 3L. It will be vunderstood, is operating in a circuit under steady state conditions, however, that great variations in the values of these the ?ow of current through each of the fuses 30, 42, 50 inductances are possible. Further, as in the circuit of and 56 is about equal, differing only by the practically FIG.
Load more

Recommended publications
  • Three-Phase Power Capacitor with Fuse Protection
    Power capacitors, LV CSB-F Three-phase power capacitor with fuse protection Description Features Features The application of new technologies to ma- Operating voltage 230, 400 V (for other voltages, please ask) nufacture prismatic capacitors have allowed Support voltage 400 V 440 V CIRCUTOR to reinvent the classic CS capa- Capacity tolerance ± 10% citor, manufactured for over 35 years. CS Capacitor + General protection fuses of the Unit composed of NH-00 type with high rupture power (HRP) The spirit of innovation and proprietary te- Insulation level 3 / 15 kV chnology used during the design of the new Discharge resistance 75 V / 3 minutes CSB capacitor have increased the lifespan of Overcurrent 1.3 times the rated current permanently traditional prismatic capacitors by over 60%. 10% 8 over 24 hours 15% up to 15 minutes over 24 hours Overvoltage This new series has improved all aspects of 20% up to 5 minutes over 24 hours the previous models, offering our customers 30% up to 1 minutes over 24 hours a longer-lasting, safer and more profitable Frequency 50 or 60 Hz • Dielectric < 0.2 W / kvar capacitor. Losses: • Total < 0.5 W / kvar • Dielectric regeneration • Internal fuse Protections • Overpressure system Application • Vermiculite Construction features • M6 for CV, M10 for CQ, CSB, Its application is mainly based on the com- • Power rating Terminals: CSB-6B, CFB, CFB-6B • Earth pensation of transformers and motors. In • M6 general, they are used for the compensation • CV 5 Nm Torque value of installations with constant loads. • CQ, CSB,
    [Show full text]
  • FSW Fuse-Switch-Disconnectors
    Motors | Automation | Energy | Transmission & Distribution | Coatings FSW Fuse-Switch-Disconnectors www.weg.net Fuse-Switch-Disconnectors The FSW Fuse-Switch-Disconnectors, developed according to International Standard IEC 60947-3 and bearing CE certification, are applied in electric circuits in general so as to provide the disconnection and protection against short circuits and overloads by means of NH blade contact fuses. In order to ensure a long lifespan, the FSW Fuse-Switch-Disconnectors are manufactured with reinforced thermoplastic materials and flame retardant. Additionaly, they feature contacts with silver coating, providing low power losses. Safety and Simplicity WEG switch-disconnector has several characteristics which aim at increasing security for operation and maintenance of the equipment, simplifying diagnoses and fuse replacement: g The switch-disconnector allows checking the state of the fuses through a transparent cover, besides featuring small openings which allow making electrical measurements without interrupting the operation. g As per IEC 60947-3, the switch-disconnector can perform the non- frequent opening under load. The FSW series has arc chambers for the extinction of the electric arc and disconnects all the phases together, ensuring full insulation between the load circuit and power supply. g In the opening of the switch-disconnector, the fuses remain fixed to the cover, preventing their drop or accidental contact between the energized parts. Furthermore, the cover is totally removable, allowing simple fuse replacement in a simple and safe area out of the electrical panel. g The switch-disconnectors also feature a built-in auxiliary contact in order to indicate when they are open or not properly closed.
    [Show full text]
  • AN-Mersen-Application-Information-Capacitor-Protection.Pdf
    CAPACITOR APPLICATION INFORMATION PROTECTION The primary responsibility of a capacitor fuse is to For applications 600V or less in lieu of specific fusing isolate a shorted capacitor before the capacitor can recommendations from the capacitor manufacturer, damage surrounding equipment or personnel. Typical we suggest a Mersen A60C Type 121 or an A6Y Type capacitor failure occurs when the dielectric in the 2SG fuse sized at 165% to 200% of the capacitor’s capacitor is no longer able to withstand the applied current rating (contact factory for technical data). If voltage. A low impedance current path results. The these fuses are not dimensionally acceptable, then excessive heat generated builds pressure and can a non-time delay Class J or Class RK1 fuse could be cause violent case rupture. A fuse will isolate the used and sized at 185% to 220% of the capacitor’s shorted capacitor before case rupture occurs. current rating. For applications over 600V to 5.5kV, we suggest FUSE PLACEMENT Amp-Trap A100C to A550C capacitor fuses. These The Code requires that an overcurrent device be medium voltage fuses are available in a variety of placed in each ungrounded conductor of each voltage ratings and mounting configurations. Refer capacitor bank (see Figure 1). The Code further to Section MV for specific data. Medium voltage requires that the rating or setting of the over- capacitor fuses are sized at 165% to 200% of the current device be as low as practicable. A separate capacitor current rating. overcurrent device is not required if the capacitor is Capacitor fuses are selected for their ability to connected on the load side of a motor-running provide short circuit protection and to ride through overcurrent device.
    [Show full text]
  • SMD Power Inductors At-A-Glance Your One Source for Wire Wound Magnetic Solutions
    Worldwide Presence Engineering Expertise Leading Edge Technology Award Winning Support Our Commitment to Quality SMD Power Inductors At-A-Glance Your one source for wire wound magnetic solutions 2,700 Standard P/Ns to Choose From Inductance Range 0.01uH to 10mH DC Current Range 4mA to 70A DC Resistance Range 2mW to 140W Height Range 1mm to 12.3mm Custom Formulated Powder Materials High Efficiency +1 866.239.5777 signaltransformer.com MEDICAL Signal Transformer wire wound SMD Inductors have Diagnostic Surgical Equipment found their way into every market segment Patient Monitoring Hand Held Devices Surgical Generators In-Home Dialysis SC1206, SC1210, SC1812, SC2220 Series Blood Analyzers • 0.1uH to 10mH Inductance • 2mm to 5mm Height NETWORKING • 0.05A to 7.8A Saturation Current Data Center Switching Routers SC31 to SC108 SERIES — Unshielded Servers & Server I/O Server Blades • 0.8uH to 1.2mH Inductance 100G Core Switches • 1.8mm to 8.3mm Height NIC Cards • 0.03A to 4.7A Saturation Current 3U Top Rack & End of Rack 40G Firewall Patch Panels & Wiring SC33xxF SERIES — Unshielded Closet • 1.0uH to 1.0mH Inductance • 3mm to 11.43mm Height TELECOM/DATACOM • 0.1A to 18.0A Saturation Current Set-Top Boxes Hard Drives Laptops SC52LC & BC53LC Series — Shielded Printers • 1.2uH to 220uH Inductance Plotters • 2mm to 3.0mm Height Telephone Line Switching PBX • 0.18A to 2.92A Saturation Current Current Line Detection SCRH SERIES — Magnetically Shielded • 1.0uH to 180uH Inductance CONSUMER Digital Cameras • 1.9mm to 4mm Height Video Recorders • 0.15A
    [Show full text]
  • Principles of Shunt Capacitor Bank Application and Protection
    Principles of Shunt Capacitor Bank Application and Protection Satish Samineni, Casper Labuschagne, and Jeff Pope Schweitzer Engineering Laboratories, Inc. Presented at the 64th Annual Georgia Tech Protective Relaying Conference Atlanta, Georgia May 5–7, 2010 Previously presented at the 63rd Annual Conference for Protective Relay Engineers, March 2010, and 9th Annual Clemson University Power Systems Conference, March 2010 Originally presented at the 36th Annual Western Protective Relay Conference, October 2009 1 Principles of Shunt Capacitor Bank Application and Protection Satish Samineni, Casper Labuschagne, and Jeff Pope, Schweitzer Engineering Laboratories, Inc. Abstract—Shunt capacitor banks (SCBs) are used in the electrical industry for power factor correction and voltage support. Over the years, the purpose of SCBs has not changed, but as new dielectric materials came to market, the fusing practices for these banks changed from externally fused to internally fused, fuseless, and finally to unfused [1]. This paper gives a brief overview of the four most common types of SCBs. What are the differences between them? Which is the best one to use? What type of protection is best suited for each bank configuration? The paper provides a quick and simple way to calculate the out-of-balance voltages (voltage protection) or current (current protection) resulting from failed capacitor units or elements. While the identification of faulty capacitor units is easy with an externally fused bank, it is more complex with the other types of fusing, making maintenance and fault investigation difficult. This paper presents a novel method to identify the faulted phase and section in capacitor banks. Fig. 1. Four most common capacitor bank configurations I.
    [Show full text]
  • Cmos Resistive Fuse Circuits
    12-2 CMOS RESISTIVE FUSE CIRCUITS Hae-Seung Lee and Paul Yu Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge, MA 02139 the drain currents of M1 and M2, which are approximately U2 INTRODUCTION each. M5 and M6 stay in the mod region, and they function as linear resistors.The series combination of these two linear In thi:; paper, we present simple CMOS circuits, each resistorsis the equivalent resistance between the two of which fuxtions as a linear resistor within a predetermined range of the voltage across it, and as an open circuit outside terminals of the fuse; that range. The circuits have been fabricated in a standard REQ =[k5,f$VGS5,6 - vT)]-l 2pn CMOS process in a silicon area of 70~mX 90pn, and operate at a single 5V supply. 'where k5,6 = $h%X ("k .6 In the early stage of vision processing, it is desirable As V1 is raised with respect to V2, more current is steered to to smooth out small variations of intensity in the image. A I +AI spatial low-pass filter which performs a Gaussianor binomial M1. When the drain current of M1 exceeds 7V3 is convolution of the image has been used for image smoothing. An interesting implementation of such a spatial low-pass filter quickly pulled down near the source potential of M1, turning is a resistive grid shown in Fig. 1, where V(ij) is the voltage M3off. Since the circuit is symmetric, the samething proportional to the intensity at the pixel (ij), and V(i,j) isthe happens in the opposite direction, also.
    [Show full text]
  • DS-IEC-Low-Voltage-GP-Multibloc
    MULTIBLOC® 3.ST8 Size 3, 630A, 690VAC, Design for Bottom Fitting, 3-,4-pole MULTIBLOC® 3.ST8 Size 3, 630A, 690VAC, Design for Bottom Fitting, 3-,4-pole IEC FUSE SWITCH DISCONNECTORS NH FUSE SWITCH DISCONNECTOR FEATURES & BENEFITS • Touch protection IP 20 - when fuse link is in test mode IP rating is main- tained • Padlocking of switch door cover - optional • Parking position of switch oper- ating cover even with fuse-links inserted • Indicating switch for switch door position - optional • Electronic or electro-mechanic fuse monitoring - optional The production programme of MULTIBLOC® series 3.ST8 comprises • Modular system of cover - cover NH fuse switch disconnectors for 630A. for cable termination area can be extended as required They are designed for bottom fitting/panel installation and are • Varieties of cable termination: available in triple pole and quadruple pole units. screw, bolt, clamp strap For installation of MULTIBLOC® NH fuse switch disconnectors in • Installation on to 60 mm and distribution units with central cover, respective covers are used to 100 mm bus bar system with obtain a uniform profile in height and length. adapter MULTIBLOC® size 3 are designed for NH fuse-links in accordance with • Safe on load connection/discon- nection in accordance with IEC IEC/EN 60269-2, VDE 0636-2, size 3, 630A. 60947-3 MULTIBLOC® offers the user the possibility of fast and easy installation as well as a high degree of security during installation and APPLICATIONS maintenance. • Panel boards for industrial use • Feeder pillars for industrial
    [Show full text]
  • Fuses & Circuit Breakers
    ® Fuses & Circuit Breakers FUSES fuse provides good motor protection from both long- term small overloads and short-term large over - Fuses and circuit breakers are often used to protect loads. motors from burning out due to current overloads. Fuses and circuit breakers are usually located out - The CURRENT LIMITING fuse will never blow side the motor for easy access. regardless of conditions. It prevents the electrical current to the motor from exceeding the rated cur - Fuses conduct electrical current normally when rent. operating below their maximum rating. When an over current condition exists that exceeds the fuse’s If a fuse continues to blow, check to see that it is the maximum rating, heat builds up inside the fuse. This proper size rating for the application. If the fuse is causes the conduction element inside the fuse to the correct size, there could be another cause other melt. The element melts and opens the circuit. than current flow. Electrical current can no longer flow to the motor, Here are the maximum fuse ratings in amperes for thus ceasing normal operation of the motor. A fuse motor running protection: with a melted element is calls a blown fuse. There are four basic types of fuses AC Motors Single-Phase Fast acting Split Phase or Cap Start Time-delay HP 120V 240V Multipurpose Current-limiting 1/6 4.4 2.2 – 5.8 2.9 The starting current of a motor can be from two to 1/3 7.2 3.6 six times the running current of the motor. FAST- ACTING fuses blow immediately after the maximum – 9.8 4.9 rating of the fuse is exceeded.
    [Show full text]
  • Fuses and Overcurrent Protection Devices
    SOLUTIONS FOR POWER MANAGEMENT FUSES AND OVERCURRENT PROTECTION DEVICES FOR POWER ELECTRONICS AND BATTERY-RELATED APPLICATIONS SAFE AND RELIABLE PROTECTION IN TWO DISTINCT PRODUCT CATEGORY OFFERINGS Mersen offers a broad and comprehensive line of protective devices for the protection of power electronics and DC applications. This brochure provides the reader a product line overview, classified into two distinct categories: CHAPTER 1: SEMiconductor Protection FUSES PAGE 3 Semiconductor Protection Fuses are used to protect sensitive loads against overcurrent conditions in power electronic equipment. StANDARD POWER RAILWAY AND TRACTION APPLICATION-ENGINEERED CONVERTER PROTECTION CONVERTER PROTECTION CONVERTER PROTECTION FUNCTION FUNCTION FUNCTION • Protection of power modules in converter / • For installation in heavy or light rail • Protection of highly demanding and inverter / rectifier applications specific applications PRODUCT FAMILIES • For protection of main electrical feed and PRODUCT FAMILIES the power conversion • Square Body Fuses. p.7 • Low Inductance Square Body . p.14 PRODUCT FAMILIES • North American Style Round Body. p.8 • High Performance Square Body . p.15 • DC high performance Square & Round • IEC Cylindrical Body . p.9 Body Power Fuses . .p.13 • NH DIN and BS88 Fuses. .p.10 & 11 • Cylindrical Auxiliary DC Fuses. .p.16 • Miniature Fuses. p.12 CHAPTER 2: OVERCURRENT protection DEVICES for battery applications PAGE 18 Overcurrent Protective Devices (OCPD) are specifically designed to safely clear both high and low DC fault currents for today’s demanding DC systems in EV/HEV and Electrical Energy Storage applications. DC FUSES FOR E-MOBILITY HYBRID OVERCURRENT PROTECTIVE DEVICES FUNCTION FUNCTION • Fuses specifically designed for protection of DC battery related • Hybrid DC protection and management for battery powered applications such as Electric Vehicles (EV) and Energy Storage systems such as Electric Vehicles (EV) and Energy Storage (EES) (EES) facilities facilities PRODUCT FAMILIES PRODUCT FAMILIES • M-fuse for Battery Module Protection.
    [Show full text]
  • Surface-Mount Fuses Fundamentals
    Surface-mount Fuses Surface-mount Fuses Fundamentals Overview TE Circuit Protection offers the widest selection of surface-mount fuses available for addressing a broad range of overcurrent protection applications. Helping to prevent costly damage and – Fundamentals promote a safe environment for electronic and electrical equipment, our single-use chip fuses provide performance stability to support applications with current ratings from .5A up to 20A. TE Circuit Protection also offers the telecom FT600 fuse for telecommunications applications. This telecom fuse helps comply with North American overcurrent protection requirements, including Telcordia, GR-1089, TIA-968-A (formerly FCC Part 68), and UL60950 3rd edition. Multi-layer Design for Chip Fuses The multi-layer design has the benefit of exposing more fuse Figure 1 element surface area to the glass-ceramic absorption material. When the fuse elements open, there is more material for the Glass/Ceramic Multiple Fuse Substrate Single Fuse Glass Substrate Elements Material Element Coating vaporizing fuse metals to absorb into, resulting in a very efficient and effective quenching of the fuse arc. Figure 1 compared the multi-layer design of our SFF fuses with standard glass coated designs. The glass coated designs rely on the coating on only one side of the fuse element to absorb the Multi-layer Design Single-layer Glass Coated Design vaporizing fuse material when it opens. Therefore, there is much less absorption material available to absorb the fuse metals. The Figure 2 result can be prolonged arcing and possible coating breach. Fault Zones Figure 2 shows how the absorption characteristics of the two designs differ.
    [Show full text]
  • PCB and Small Dimension Fuses
    Electronic —–PCB PCB and smallsmall dimension dimension fuses fuses 4 Contents Description Page 5 x 15mm fusesfuses . .4-2 5 x 20mm IECIEC fuses . .4-3 5 x 20mm ULUL fusesfuses . .4-5 1/4"x1/4˝ x 5/85/8˝- to 11˝- fuses . .4-6 1/4"x1/4˝ x 1 1/41/4˝- fast-acting fuses . .4-7 1/4"x1/4˝ x 1 1/41/4˝- time-delay fuses . .4-8 PCB mount fuse holders . 4-9 PCB fuseclips for 5mm dia. fuses . 4-11 PCB fuseclips for 1/4˝1/4- dia. fuses . .4-12 PCB fuseclips for 9/32˝,9/32-, 13/3213/32˝- and 9/16˝9/16— dia. fuses . 4-14 Electronic fuses BUSSMANN SERIES FULL LINE CATALOGCATALOG 1007—July 20152015 Eaton.corn/bussmannseries Eaton.com/bussmannseries 4-1 4 Electronic —–PCB PCB and smallsmall dimension dimension fuses fuses 5 x 15mm fuses C515 (axial leads) C518 (axial leads) C517 (axial leads) C519 C520 Specifications Description: Fast-acting Specifications Specifications fuse. Description: Description: fuse. 1.g. Construction: Glass tube. Time-delay fuse. Fast-acting fuse. 4 Dimensions: Dimensions: Ratings: 5 x 15mm 5 x 15mm Volts — — 350Vac* 350Vac* — 32Vdc (self (0.197"(0.197” X 0.591").0.591”). (0.197"(0.197” X 0.591”).0.591"). — 32Vdc (self certified) Construction: Construction: certified) if I Amps — 3A Glass tube. Glass tube. Amps — 3A Ratings: Ratings: IR — — 100A100A @@ 350Vac350Vac — 100A @ Volts — — 125Vac125Vac (3.5- Volts — — 250Vac250Vac — 100A @ 7A) 250Vac 7A) — 32Vdc (self — 250Vac certified) — 10kA @ — 250Vac certified) 125Vac (125mA-3A) Amps — 100mA-5A 125Vac Amps — 100mA-5A *350Vac/100A IRIR is UL Recognized — 32Vdc (self certified) IR — 35A (100mA-750mA @ — 32Vdc (self certified) IR — 35A (100mA-750mA @ Agency information: CE, UL Listing Amps — 125mA-7A 250Vac) CE, UL Listing Amps — 125mA-7A 250Vac) File E19180, Guide JDYX, CSA IR — 25A (350mA @ 600Vac) — 10kA (100mA-5A @ 125Vac) File E19180, Guide JDYX, CSA IR — 25A (350mA @ 600Vac) — 10kA (100mA-5A @ 125Vac) Certification File 53787, Class — 35A (125mA-1A @ 250Vac) — 100A (1.5-3.5A @ 250Vac) — 35A (125mA-1A @ 250Vac) — 100A (1.5-3.5A @ 250Vac) 1422-01, UL Recognized, File E19180, Guide JDYX2.
    [Show full text]
  • Mv Power Capacitors and Banks Bioriphaso Tf
    2014 MV POWER CAPACITORS AND BANKS BIORIPHASO TF All fi lm dielectric MV Power Capacitors QUALITY MADE IN ITALY Index Icar: Products and solutions 1 ICAR Quality System 3 Medium and High Voltage Solutions 3 Capacitors BIORIPHASO/TF 4 BIORIPHASO/TF Without internal fuses 7 BIORIPHASO/TF With internal fuses 9 BIORIPHASO/TF trifase / three phase 11 Capacitor Bank 12 Metal Enclosed Capacitor Banks 14 Technical Remarks 15 Safety and Storage Instructions 16 III Icar: Products and solutions ICAR is a leading manufacturer of capacitors and power factor correction systems in low and medium voltage; it controls with its own companies all production phases: the polypropylene/paper film, metallization, winding,manufacturing of the finished product. The ICAR Group has several plants, all located in Europe. The power factor correction range is made entirely in Italy. For details on the individual families, download the full catalogs on the website, www.icar.com. Here are all equipment and the solutions ICAR proposes. Custom components MV Capacitors and for power factor banks for power factor correction correction Power electronics Active Harmonic capacitors Filters LV voltage EMI RFI filters stabilizers Capacitors for Motor run energy storage capacitors and discharge Lighting Isolation and LV/LV capacitors special transformers 1 ICAR Means Capacitors ICAR SpA is synonym of capacitor from 1946, conjugated over its multiple applications. All along ICAR has been believing in the quality of its products and in the strength of the International regulations for the achievements of the high performance standards required for capacitor in industrial applications. Nowadays ICAR is one of the few companies able to manufacture capacitors starting from the raw material up to the finished product; the entire process is checked in order to obtain a product of high quality level that guarantees its functioning even in the most burdensome plant configurations.
    [Show full text]