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VV/HH - High voltage fuse-links

VV/HH - High voltage fuse-links

Product catalog summary

General Information:
ETI HV (High-voltage Current-limiting fuse-links) named VVT TD3 are designed to protect devices in switch-gears and other equipment such as distribution transformers, power capacitors, and MV motors from thermal and dynamic effects of short-circuits and over-currents. They comply with IEC 60282-1 standards and are suitable for indoor and outdoor RMU switchgear, SF6-insulated enclosures, and special service conditions.

Key Features:

Low temperature rise due to low power dissipation.
Low minimum breaking currents and high breaking capacity of 63 kA.
Two types of striker pins: 50N and 80N with integrated temperature-dependent limiter.
Reliable sealing system against humidity.
Low switching voltages.
Customizable dimensions upon request.

Standards and Compliance:
ETI MV/VV High voltage fuse-links comply with several standards including IEC 60282-1, DIN 43625, VDE 0670 T402, IEC TR 62655, IEC 60644, and IEC 60549. They have KEMA Type Test Certificates for breaking performance.

Construction:
The fuse-links are constructed with a high mechanical and thermal resistant glazed porcelain tube. Contact caps are made of electrolytic copper and can be nickel, tin, or silver plated. The design ensures precise tolerances and stable time/current characteristics. The tube is filled with quartz sand for reliable arc extinguishing. The striker system includes a temperature-sensitive element that reacts only to inadmissible temperature values.

Ordering Information:
Various models are available with different rated currents and dimensions. The ordering code numbers are provided for each model, with options for Ni or Ag plated contacts. Custom ratings and dimensions can be requested.

Technical Data:
Detailed technical data including rated voltage, dimensions, and weight are provided for each model. The document includes tables listing the ordering code numbers for different configurations.

Overview: This document provides technical specifications and ordering information for high voltage fuse-links used in liquid-immersed transformers and voltage transformers. It includes details on dimensions, rated voltage, current, and additional accessories.

Specifications:

Rated Voltage and Current: The document lists various fuse-links with rated voltages ranging from 7.2 kV to 36 kV and corresponding rated currents.
Dimensions: Dimensions are provided according to DIN and IEC standards, with specific measurements for tube diameter and weight.
Striker Types: Different striker types are mentioned, including 50N and 80N, which are used for specific applications.

Ordering Information:

Each fuse-link type is associated with a unique ordering code number, which is essential for procurement.
Additional notes indicate that other ratings and dimensions can be customized upon request.

Installation and Usage Guidelines:

Indoor and outdoor mounting options are available, with specific instructions for choosing the correct fuse base based on size and rated voltage.
Safety notes emphasize that fuse bases cannot be adjusted for different lengths post-installation, and rotation during installation is restricted to specific orientations.

Accessories:

Various accessories are listed, including fixing plates for creating 3-pole fuse bases and microswitches for monitoring.
Universal clips and other components are available for specific installation needs.

Additional Notes:

Orange-colored types conform to IEC 60282-1 dimensions.
Customization options are available for specific applications, and users are encouraged to contact the technical team for tailored solutions.

Catalog excerpts

VV/HH High voltage fuse-links Technical data High voltage fuses POWER NEEDS CONTROL

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High voltage fuse-links High voltage fuse-links High voltage high-breaking capacity VV fuse-links General information ETI HV (High-voltage Current-limiting fuse-links) named VVT TD3 are designed to protect devices in switch-gears and other equipment (distribution transformers, power capacitors, MV motors) from thermal and dynamic effects of shortcircuits and over-currents. Time-current characteristics correspond to standard IEC 60282-1, item 3.3.3. Back-up fuse. They are suitable for installation in: indoor and outdoor RMU (Ring-Main Units) switchgear SF6 - insulated enclosures special service...

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High voltage fuse-links ÆÆ KEMA type test reports ÆÆ Reliable sealing system against humidity irruption ÆÆ High endurance ceramic tube ÆÆ Striker system: a temperature sensitive element, which does not react to short time overloads, only to inadmissible values of temperatures. Convenient for the protection of the fuse-links, installed in enclosures or SF6 switchgears ÆÆ Rigid striker pin ÆÆ Low temperature rise because of low power dissipation ÆÆ Various striker variants (50N, 80N, without striker, thermo, non-thermo...) ÆÆ Low minimum breaking currents ÆÆ Low switching voltages ÆÆ High breaking...

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High voltage fuse-links Ordering Code Numbers rated Dimension “e” rated current voltage according to DIN and IEC (mm) Un [kV] Note 1: Other ratings and dimensions can be supplied by customer request. For particular applications, please contact ETI technical team. Note 2: Orange colored types according to IEC 60282-1 dimensions. * Other dimensions available upon request VVT-D3 Striker type 80N THERMO Ni plated contacts

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High voltage fuse-links Ordering Code Numbers rated Dimension “e” rated current voltage according to DIN and IEC (mm) Un [kV] Technical data on page 900

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High voltage fuse-links Ordering Code Numbers Komercialni podatki rated Dimension “e” nazivna Dimenzija “e” v rated current nazivni tok voltage skladu z to in napetost accordingDINDIN and IEC (mm) IEC (mm) Un [kV] VVT-D3 Striker type 80N THERMO Tube Diameter diameter cevi “d” (mm) Note 1: Other ratings and dimensions can be supplied by customer request. For particular applications, please contact ETI technical team. Note 2: Orange colored types according to IEC 60282-1 dimensions. * Other dimensions available upon request weight teža

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High voltage fuse-links Ordering Code Numbers rated Dimension “e” rated current voltage according to DIN and IEC (mm) Un [kV] VVT-D Striker type 80N

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High voltage fuse-links High voltage fuse-links for protection of voltage transformers Ordering Code Numbers rated Dimension “e” rated current voltage according to DIN and IEC (mm) Un [kV] [A] 2A 10/24 235 4A Fuse bases for VV fuse-links 1-pole Indoor mounting type Rated voltage code No. Dimension “e” according [kV] to DIN and IEC [mm] VVP 12 1p-N 12 004239010 292 VVP 24 1p-N 24 004259010 442 * when choosing right fuse base consider size and rated voltage of fuse-link ** due to safety reasons fuse bases cannot be later adjusted on different length by a user *** indoor edition of fuse base may...

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High voltage fuse-links 1-pole Outdoor mounting type Rated voltage code No. Dimension “e” according [kV] to DIN and IEC [mm] VVP 12 1p-Z 12 004239030 292 VVP 24 1p-Z 24 004259030 442 * when choosing right fuse base consider size and rated voltage of fuse-link ** due to safety reasons fuse bases cannot be later adjusted on different length by a user Accessories for VVP fuse bases type Fixing plate to obtain 3p fuse base (2 fixing plates are needed) Microswitch VV universal clip VV universal clip with tail Fixing plate for VVP 7,2 3p-N, INDOOR 004229020 Fixing plate for VVP 12 3p-N, INDOOR 004239020...

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VV/HH - High voltage fuse-links

VV/HH - High voltage fuse-links

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