HANNOVER MESSE 2018, 23 - 27 April
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SIL-V Voltage & Frequency / Synchronism

Relays for transformers or electrical machines. HV,MV, LV. Islanding.

Fanox Electronic

Exhibitor details
Logo SIL-V Voltage & Frequency / Synchronism
Logo SIL-V Voltage & Frequency / Synchronism

Exhibition stand

Hall 12, Stand F03

Ms. Pilar Martinez
Send E-mail
Fax: +34 944 710 592

Product description

Main applications: Cogeneration & Loss of Mains (Islanding) detection
For transformers or electrical machines. HV, MV and LV distribution systems and for decoupling, load shedding and loss of main (islading) protection.
Auxiliary power supply (24-110 Vdc / 48-230 Vac).
Protection functions: 27(2), 27V1, 59(2), 59V2, 59N(2), Rate of change of voltage, 74TCS, BF, 52, 79, 81O/U(4), 81R(2), 86, 78, 25.
5 attempts of reclosing with 79 protection function (Recloser).
Synchronism check: Voltage differences, frequency slip, angle differences, DLDB, DLLB, LLDB. (Function 25)
Direct signalling/control of function 52 (Circuit breaker) and function 79 (Recloser).
5 oscillographic records, 20 fault reports and non-volatile RAM memory: stores 200
events without power supply thanks to its internal RTC (Real Time Clock).

Loss of Mains (Islanding) detection
Loss of Mains (Islanding) occurs when part of the public utility network loses connection with the rest of the system. If this situation is not detected, then the generator could remain connected, causing a safety hazard within the network.
Automatic reconnection of the generator to the network may occur causing damage to the generator and the network.
SIL-V protection relay detects this situation thanks to its voltage and frequency functions focused on the Rate of change of frequency (ROCOF) method.

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