High Voltage Fuse Links
High Voltage Fuse Links
This document provides comprehensive information on high-voltage fuse-links and accessories, focusing on protection against short-circuits. It covers specifications for various fuse-link types suitable for indoor, outdoor, and oil-submerged applications, along with a range of accessories.
The high-voltage fuse-links comply with VDE 0670 T402/IEC 60 282-1 and VDE 0670 T4/IEC 60 282-1 standards. They are available in different rated voltages, lengths, and amperages, suitable for applications such as transformers, condensers, and engines.
The document lists a wide range of fuse-links, including general-purpose and back-up types with controlled power dissipation (ÜLA). Each product entry includes details like rated voltage, length, diameter, amperage, order number, and price.
Technical data for the fuse-links is available, providing insights into their specifications and performance characteristics.
Selection tables are provided according to T402 and T4 standards, assisting in choosing the appropriate fuse-link for specific requirements.
The fuse-links offer reliable protection and are nationally and internationally approved, designed to ensure safety and efficiency in power systems.
A variety of accessories, including fuse-base contacts, are available to complement the fuse-links, enhancing their functionality and ease of use.
Prices are listed for each product, with technical adaptations possible. The prices are exclusive of VAT and are based on the recommended retail price as of February 1, 2011.
- Protection of High-Voltage Motors: EFEN HV back-up Fuse-Links protect motors from high short-circuit currents, requiring additional protective devices for overload disconnection.
- Protection of High-Voltage Capacitors: Individual capacitors can be protected against short-circuits, considering rated voltage and current.
- Protection Against Distance Short-Circuits: HV Fuse-Links are used upstream of transformers, considering both transformer and line impedance.
- Special Applications: Includes protection of voltage and capacitive transformers, railway installations, and oil-tight designs for integration into devices like transformers.
- Selection Criteria: Consider transformer ratings, time-current characteristics, and secondary device selectivity.
- Example Procedure: For a 630 kVA transformer, select Fuse-Links based on time-current characteristics to ensure they interrupt short-circuit currents within 2 seconds.
- ÜLA System: Controls power dissipation to prevent overheating in SF6 insulated substations, ensuring power dissipation does not exceed 75 W.
- Benefits: Includes thermal protection, independence from mounting position, and non-ageing mechanism.
- Functionality: Combines HV Fuse-Links with switches for short-circuit protection and load switching capacity.
- Selection Criteria: Consider rated transfer current and fuse-initiated opening time.
- Characteristics: Extended breaking range for low currents, enabling selectivity with low voltage circuit-breakers.
- Manufacturing: Available in oil-tight versions for direct integration into transformers.
- Design: Compact design for integration into transformer housing, providing short-circuit protection.
- Specifications: Suitable for transformers with limit ratings up to 3000 VA (6-12 kV) or 6000 VA (15-24 kV).
- Tables: Provide guidance on selecting HV back-up Fuse-Links based on transformer rated current, service voltage, and mode of protection.
Detailed tables list electrical data, dimensions, and weights for various fuse-link models, including rated voltage, current, breaking current, and power dissipation.
The document references standards such as VDE 0670 T4 and IEC 60282-1, ensuring compliance with international electrical safety and performance standards.
The document suggests selecting the next higher voltage level of HV fuse-links for capacitor protection and highlights preferred current values for various applications.
The document notes that technical adaptations are possible, indicating flexibility in product application and customization.
Catalog excerpts
Protection from Short-circuit Special Test device for tripping device version with threat High-voltage Fuse-Link for voltage transformers (HSW) Back-up Fuse-Link with ÜLA (controlled power dissipation)
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MM: Bild angeben Content High Voltage Fuse-Links and Accessories High Voltage Fuse-Links acc. to VDE 0670 T402/IEC 60 282-1 356 High Voltage Fuse-Links acc. to VDE 0670 T4/IEC 60 282-1 358 HV Fuses for Voltage Transformers 361 Accessories 362 Technical data see page 364 Selection table acc. to T402 371 Selection table acc. to T4 372 Features The portfolio of HH Fuse-Links includes various types for indoor, outdoor and oil-submerged applications. Many different Fuse-Links, for example in special dimensions, as well as a wide range of accessories round up the portfolio. System The range of general...
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361 IN THE LINE OF POWER For more information see page 364 High Voltage Fuse-Links 67036-0003 High-voltage Fuse-Links for Voltage Transformers (HSW) acc. To VDE 0670 T4/IEC 60 282-1 Description Rated voltage kV Length Ø Amps Order-No. PU PG Sur. Ag Sur. Cu Price €/pc. with indicator 6/12 160 22 1,6 67036-0004 1 HH 1 78,60 with indicator 15/24 280 22 1,4 67037-0004 1 HH 1 94,85 without indicator 6/12 160 22 1,25 67036-0003 1 HH 1 62,45 without indicator 15/24 280 22 1,25 67037-0003 1 HH 1 78,60 without indicator 20/36 421 37 1 67088-0003 1 HH 1 90,15 Technical adaptations possible • Recommended...
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362 IN THE LINE OF POWER For more information see page 364 Accessories for High Voltage Fuse-Links 68007-0010 HV Fuse-Bases acc. to DIN 43 624 for indoor Description Rated voltage kV Length Ø Order-No. PU PG Sur. Ag Sur. Cu Price €/pc. HV Fuse-Bases 12 293 45 68007-0010 1 netto 61,40 HV Fuse-Bases 24 443 45 68008-0010 1 netto 74,30 HV Fuse-Bases 36 538 45 68012-0010 1 netto 128,00 67033-0003 High Voltage Solid-Links Description Rated voltage kV Length Ø Order-No. PU PG Sur. Ag Sur. Cu Price €/pc. HV Solid-Link 292/51 12 292 51 67033-0003 1 HH 1 79,65 HV Solid-Link 442/51 24 442 51 67034-0003...
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363 IN THE LINE OF POWER For more information see page 364 Accessories for High Voltage Fuse-Links 68004-0010 Holder Properties: - Holder for 3 HV Fuse-Links Description Rated voltage kV Length Ø Amps Order-No. PU PG Sur. Ag Sur. Cu Price €/pc. Holder 68004-0010 1 HH 3 75,50 68013-0020 Test device for tripping device. Description Rated voltage kV Length Ø Amps Order-No. PU PG Sur. Ag Sur. Cu Price €/pc. Test device 192 mm, 65 Nm 7,2 68013-0020 1 netto 655,00 Extension to 292 mm 12 68014-0010 1 netto 38,80 Extension to 442 mm 24 68015-0010 1 netto 54,90 Technical adaptations possible • Recommended...
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364 IN THE LINE OF POWER Fig.1 High Voltage Fuse-Links Technical data General information HV Fuse-Links have been used for reliable protection in mediumvoltage switchgear and controlgear and systems for decades. They protect apparatus and equipment against the thermal and dynamic effects of short-circuits. The outstanding features of EFEN HV Fuse-Links are: • High breaking capacity • High current limitation • Low switching voltage • Quick breaking • Non-ageing EFEN HV Fuse-Links conform to the following standards: • VDE 0670 T4/IEC 60 282-1: High-voltage fuses “current-limiting fuses” • VDE 0670...
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365 IN THE LINE OF POWER High Voltage Fuse-Links Technical data Rated voltage range It is important for HV Fuse-Links that they must be operated at the voltage for which it has been rated. Accordingly, the operating voltage corresponds to the maximum rated voltage of the Fuse- Link. Owing to the switching voltage occurring during arcing, the Fuse-Link cannot be used at lower voltages without limitation. A lower operating voltage at which the Fuse-Link can still be used without exceeding the system insulation level during extinction must therefore be taken into account. From these two values results...
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366 IN THE LINE OF POWER High Voltage Fuse-Links Technical data Description of further applications of EFEN HV Fuse-Links Protection of high-voltage motors With EFEN HV back-up Fuse-Links, high-voltage squirrel-cage motors can be protected against the consequences of high short-circuit currents. An overload must be disconnected by accompanying protective device. Protection of high-voltage capacitors It is possible to protect individual capacitors using EFEN HV back-up Fuse-Links in the event of a short-circuit. However, particular aspects must be taken into account with respect to the rated voltage...
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367 IN THE LINE OF POWER High Voltage Fuse-Links Technical data Protection of transformers The following should be observed for HV Fuse-Link selection: a) Transformer ratings – Service voltage (U) – Rated output (S) – Relative short-circuit voltage (uk %) – Inrush current (8...12 IN) b) Time-current characteristic of HV Fuse-Links c) Secondary devices/selectivity Procedure based on an example: A 630 kVA transformer has a transformer rated current of 18,2 A at a service voltage of 20 kV. The relative short-circuit voltage is 4 % and the inrush current is 12 x lN. The short-circuit current on secondary...
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368 IN THE LINE OF POWER Power dissipation Pa of HV Fuse-Link [W] High Voltage Fuse-Links Technical data HV back-up Fuse-Links acc. to VDE 0670/IEC 60 282-1 with controlled power dissipation ÜLA Application EFEN HV back-up fuses type ÜLA meet the requirements of VDE 0670 and were specifically developed to be installed in compact sized enclosed SF6 insulated substations. In these substations HV fuses are enclosed in narrow fuse compart ments which on the one hand prevent efficient cooling of the fuses and on the other hand have a limited thermal power acceptance themselves (as a rule about 75...
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369 IN THE LINE OF POWER High-voltage alternating current switch-fuse combinations acc. to VDE 0671 T105/IEC 62 271-105 In order to increase the utilization range of a switch, it is combined with current limiting HV Fuse-Links. This combination unit offers short-circuit protection in addition to load switching capacity. HV Fuse-Links provide short-circuit protection, while the switch interrupts the currents below the take-over current of the combination unit. In addition to the inrush current, short-circuit current on secondary terminal short-circuits and low voltage selectivity, the following...
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