Medium Voltage HRC Fuse-Links
To prevent secondary damage, transformers have to be protected against thermal and dynamical overload caused by short circuit currents. JEAN MÜLLER medium-voltage high rupturing capacity fuse-links have particularly been designed for this application. The standardized fuse characteristics are co-ordinated with other protective devices. Consequently, there is no need for complex short-circuit calculations
JEAN MÜLLER IKUS HV HRC fuse-links are designed according the international standard IEC/EN 60282-1 and national standard DIN VDE 0670-402.
HV HRC fuse links conform to the international standard IEC 60282-1, DIN EN 60282-1 and DIN VDE 0670-402. They are available as back-up fuses for short circuit protection of transformers with voltages up to 36kV. JEAN MÜLLER IKUS HV HRC fuse-links are equipped with strikers type “medium” optionally with 120N withstand force including thermo-release or 80N withstand force.
FIELD OF APPLICATION:
IKUS HV HRC fuse-links are equally suitable for indoor and outdoor applications. In the range of rated voltages 3,6kV up to 36kV they mainly cover the protection against thermal and dynamical overload of transformers at short-circuit currents. As the characteristics are defined according to DIN VDE 0670-402 an easy selection of the fuse-link for the respective transformer rated power is possible. While at the same time applying gTr fuse-links on the low voltage side, selectivity is guaranteed automatically. Application as protection for medium voltage motors is optional, the starting current, starting time and starting frequency have to be taken into account.
JEAN MÜLLER HV HRC fuse-links offer a high breaking capacity and an extensive limitation of short circuit current and let-through energy while providing low switching voltages and low power dissipation. High production quality guarantees reliability of the fuse-link. High-grade materials ensure consistent technical characteristics over a long period of time. Non-ageing materials are used for melting elements accordingly. IKUS HV HRC are equipped with strikers corresponding with the type “medium” according to IEC 60282 respectively DIN EN 60282. IN addition the standard type 120N offers a thermo release function which protects from exceeding temperature limits when applied in fuse canisters of gas-insulated switchgear. The construction of the fuse-link guarantees effective protection against humidity and other environmental conditions and therefore qualifies for use in indoor and outdoor applications.