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High-voltage fuses Special design (HHx)

High-voltage fuses Special design (HHx)

Product catalog summary

Introduction

This document details the technical specifications and application guidelines for the HHx series of high-voltage fuse links produced by SIBA. These fuses are primarily designed to protect oil-insulated transformers, overhead line installations, and voltage transformer circuits, ensuring reliable operation in medium voltage power distribution systems.

Product Series and Applications

HHOZ-B: Designed for oil-insulated distribution transformers, optimized for compactness and cost-efficiency in substations, available in 12 kV, 24 kV, and a 24 kV "e" = 442 mm variant.
HHOD-B: Intended for oil-insulated main transformers, compliant with DIN 43 625 and VDE 0670-4 standards, offered with or without shielding.
HHOZ-G: General-purpose fuses with overhead line connectors for 12 kV, 17.5 kV, and 24 kV systems, enabling maintenance without power interruption.
HHP-B: Transformer protection fuses for overhead line networks, featuring striker pins and cold resistance data for enhanced functionality.
HHZ-BVT: Voltage transformer circuit protection fuses available in 3/7.2 kV ratings with lengths of 142 mm, 195 mm, and 220 mm, manufactured to company standards.

Technical Specifications

The document provides comprehensive tables covering key parameters for each fuse type, including:

Rated voltage and current ranges
Rated breaking current (I1) and actual breaking current (I)
Pre-arcing and total melting integral values (I2t), critical for coordination with downstream equipment
Power loss during normal operation (watts)
Physical dimensions (length, diameter) and weight
Thread types (commonly female thread G1/8" at both ends)
Presence of striker pins and cold resistance values where applicable

Performance Characteristics

Time-current characteristic curves are included for each fuse type and rating, illustrating:

Virtual melting and pre-arcing times
Cut-off peak current and prospective short-circuit current (symmetrical RMS)
Uninfluenced short-circuit current

These curves facilitate understanding of fuse behavior under fault conditions and ensure proper coordination with protected equipment.

Standards and Compliance

The fuses conform to international and national standards such as IEC 60282-1, DIN 43 625, and VDE 0670, guaranteeing safety and reliability in high-voltage applications.

Recommendations and Best Practices

Choose fuse types based on specific applications: transformer protection, overhead line installation, or voltage transformer circuits.
Consider rated current, breaking capacity, and physical dimensions for proper fit and function.
Use fuses with striker pins when remote indication or operation is required.
Follow packing and installation guidelines to ensure optimal performance and longevity.

HHZ-BVT Fuse Links Detailed Overview

This section focuses on HHZ-BVT fuse links used in medium voltage systems from 6 kV up to 36 kV, providing detailed electrical and mechanical data essential for selection and application.

1. Product Specifications

Rated voltages: 6/12 kV, 10/17.5 kV, 10/24 kV, and 20/36 kV.
Rated currents: Typically 1 A to 24 A depending on fuse type.
Dimensions: Lengths from 195 mm to 440 mm; diameter approximately 24 mm, with length correlating to voltage rating.
Weight: Provided for handling and installation considerations.

2. Electrical Characteristics

Rated breaking current (I1): Maximum interruptible current.
Breaking current (I): Actual current at interruption.
Pre-arcing integral (I2t): Energy let-through before melting, critical for downstream equipment protection.
Arcing integral (2t): Total let-through energy including arcing phase.
Power loss: Dissipation during normal operation, important for thermal management.

3. Time-Current Characteristics

Curves illustrate the relationship between prospective short-circuit current and melting time, including:

Virtual pre-arcing time
Cut-off and peak currents
RMS prospective short-circuit current

4. Application and Standards

Intended for medium voltage power distribution protection against overcurrents and short circuits.
Packing and backup protection information supports integration into broader protection schemes.
Manufactured according to company standards (Werksnorm) ensuring consistent quality.

5. Key Parameters Summary

Rated Voltage (kV)	Rated Current (A)	Length (mm)	Diameter (mm)	Pre-Arcing I2t (A²s)	Arcing 2t (A²s)	Power Loss (W)
6/12	1 - 5	220	24	4 - 12	5 - 40	11 - 24
10/17.5	1 - 5	220	24	4 - 20	5 - 40	15 - 24
10/24	1 - 5	195 - 220	24	4 - 18	5 - 40	10 - 24
20/36	1 - 24	440	24	14 - 28	24 - 28	24 - 28

6. Recommendations and Best Practices

Select fuse links considering rated voltage, current, and breaking capacity for effective protection and coordination.
Review time-current characteristic curves to align fuse operation with system fault levels and backup devices.
Account for physical dimensions and weight for installation compatibility and safety.
Consider power loss values for thermal management in fuse holders and switchgear.

Conclusion

The HHx series fuse links provide a comprehensive range of high-voltage protection solutions tailored for transformers and overhead line systems. The detailed technical data, performance curves, and application guidelines support precise fuse selection, ensuring system safety, reliability, and operational efficiency in medium voltage power distribution networks.

Catalog excerpts

High-voltage fuses Special design (HHx)-1

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } Hx-Sicherungseinstze, Sonderbauformen / Spcial Fuse-Links [3|py\) Sicherungen | Fuses HHx-Sicherungseins੠tze Hochspannungs-Hochleistungs-Sicherungseinstze, Sonderbauformen HHx Fuse-Links High-Voltage Spcial Fuse-Links Einleitung / Introduction Technische Daten nach Baureihen / Technical Data Types of Fuses 157 HH-Katalog / HV-Catalogue © 2009-09 SIBA GmbH & Co. KG ੕ www.siba.de [email protected] ^

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High-voltage fuses Special design (HHx)-2

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } (SIBA) Sicherungen | Fuses HHx-Sicherungseinstze, Sonderbauformen / Spcial Fuse-Links HHx-Sicherungseins੠tze Hochspannungs-Hochleistungs-Sicherungseinstze / Sonderbauformen HHx Fuse-Links High-Voltage Fuse-Links/Special Fuse-Links Einleitung Introduction Einsatzgebiete, Baureihen Vorbemerkung Mit den «Sonderbauformen" fasst SIBA spezielle Konstruktionen fur verschiedene Anforderungen im Bereich der Hochspannungs-Hoch-leistungssicherungen zusammen, Neben...

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High-voltage fuses Special design (HHx)-3

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } Hx-Sicherungseinstze, Sonderbauformen / Spcial Fuse-Links [3|py\) Sicherungen | Fuses HHOZ-G (Seite 170ff) Die Sicherungen dieser Baureihe sind Vielbereichssicherungen fur den Einsatz unter 01 im Transformator, Durch den Einsatz dieser Sicherungen wird ein grੴBtmglicher Bereich aller in Frage kom-menden Fehlerstrme erkannt und abgeschaltet, 䴙ber den blichen Berstschutz hinaus werden auch niedrige berstr陴me in Folge von Windungs- oder Erdschlssen schnell...

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High-voltage fuses Special design (HHx)-4

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } (SIBA) Sicherungen | Fuses HHx-Sicherungseinstze, Sonderbauformen / Spcial Fuse-Links Von besonderem Vorteil zur Verwendung im Freileitungsbau ist das niedrige Gewicht der einzelnen Komponenten durch die Verwen੭dung von Aluminium fur die Kontaktarmaturen und Kunststoff als Werkstoff fur das Isolierrohr der Sicherung, An outstanding advantage for installation work on overhead lines is the low weight of the fuse and connectors, which is achieved by using aluminium...

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High-voltage fuses Special design (HHx)-5

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High-voltage fuses Special design (HHx)-7

PMP - Excavators Brochure table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:13.00pt "Arial", sans-serif; } .font2 { font:20.00pt "Arial", sans-serif; } .font3 { font:23.00pt "Arial", sans-serif; } .font4 { font:36.00pt "Arial", sans-serif; } .font5 { font:5.00pt "Impact", sans-serif; } 12 kV Ze>t/5trom-Kennlinie Time-current :haracterist>c Durchlass-Strom Cut-ofT current ni I » 4 Օ 163 HH-Katalog / HV-Catatogue o 2009-09 SlBA GmbH & Co, KGwww.slba.de Օ [email protected] i

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High-voltage fuses Special design (HHx)-9

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } HHOZ-B-Sicherungseinstze, Sonderbauformen ldicht / Spഩcial Fuse-Linksoiltight Sicherungen | Fuses Zeit/Strom-Kennlinie Time-current characteristic 10 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ zz zz z z ZZ Z z z zz zz z z = = = : z - ח - - - ח ח - - ח ח - - H312 11-3 0 t - - ~~1-1 1-1 11 1ח1 _ 1 z = ח z z - EE E E z z z EE E E z z E zzz E E z z E 1 - t Z ח - ח ח - - ח ח - - - ח - - ■ 1 1 i i_ ■ i _1 1 ! t r i i i <Z 1 1 I r \ i 1 1 d ח\- > 1 ;10A;...

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High-voltage fuses Special design (HHx)-10

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } [3IPA) HHOZ-B-Sicherungseinstze, Sonderbauformen ldicht / Spഩcial Fuse-Links oiltight Sicherungen | Fuses 36 kV Vorzugsabmessung / Standard dimension Beidseitiges Innengewinde / Both ends female thread Ohne Schlagstift / Without striker pin Mit Schlagstift / With striker pin Einsatz / Application Einbau in den l-Transformator / Oil-transformer application Verpackung / Packing 1 StԹck/ 1 pice IEC 60282-1 Betriebsklasse / Class Teilbereich / Back-up Bemessungs-...

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High-voltage fuses Special design (HHx)-11

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } HOZ-B-Sicherungseinstze, Sonderbauformen ldicht / Spഩcial Fuse-Links oiltight [3|py\) Zeit/Strom-Kennlinie Time-current characteristic 10 ZZZI z: z: ZZZI - zz z z z - zz ZI z z - zz zz zz z z - ח ח ח - - ח - - - ח ח - - 1-132' 11 ' 0 0 > - 1-1323 _Z1 ZI - - = - - zzz zzz E z z z zzz z z zz z z zE z E z z E - ח 1 - - 1 1 - ח ח - - - ח - - ח ח - - 1 _| _i _ _ 1 1 T r 1 1 T 1 1 t- 1 1 > > t > 1 ? \ _ l v, ni 5 : PTiH zzzz  zz - - zzzz ח - ח zz - - - ■+ ח F...

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High-voltage fuses Special design (HHx)-12

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } [3IPA) HH°D-B-Sicherungseinstze, Sonderbauformen DIN Standard/Spcial Fuse-Links, DIN Std, Sicherungen | Fuses Mit und ohne Abschirmung / With and without screen Einsatz / Application Einbau in den ੔l-Transformator / Oil-transformer application Verpackung / Packing 1 Stck/ 1 pice Betriebsklasse / Class IEC 60282-1 VDE 0670-4 Teilbereich / Back-up DIN 43 625 Bemessungs- Artikel Bemessungsstrom Lange "e" Durchmesser D spannung Rated Voltage Article Rated Current...

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High-voltage fuses Special design (HHx)-13

siba_HH_Katalog_Skock.pdf table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Times New Roman", serif; } HOD-B-Sicherungseinstze, Sonderbauformen DIN Standard/Spcial Fuse-Links, DIN Std, [3|Pj\) Sicherungen | Fuses Zeit/Strom-Kennlinie Time-current characteristic 10 - ੗ = = = z: - = z z z : ח zz z z z : = zzz - = z z z z J H33I 13- 0_ 0 _ _ _ _ _ : __ _ ח _ _ z _ - - _ z z z - _ z z z z - - 1 ח -1- - ח ח - - ח ח - ח ח ח - Z ■ ~r ■ 1 i A > o > ■~ > ? i \\ -4-4- ח ZZ i: :±4= z z z - z z z z ח z z z z - ח F ^- +T - ח ח - - - ח ח - - ח ח - - t~ ~l \ \ F \ \ T U...

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