FANOX SIL-A A Series, Руководство пользователя

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3 DESCRIPTION
3.1 Introduction
The energy sector is currently immersed in a deep change worldwide. As a result of high levels of energy
demand more distribution lines and advanced supervision systems are required. Given the need for
creating intelligent infrastructures, FANOX has developed the SIL family to carry out this function.
The SIL- A relay is designed to protect secondary transformation and distribution centers of electric
grids, using current functions. It is intended to work with a circuit breaker as cutting power element.
The protection functions can be activated by using both the front panel and the communications links to
the SICom program, allowing a precise coordination with another relay.
Additionally, all the models have been designed to be powered from an external battery. This is aimed
at facilitating event management and the commissioning of centers, as well as allowing it to operate
properly under adverse conditions.
3.2 Description
SIL-A relays are digital based technology powered with an auxiliary voltage of 24-230 Vac/dc.
Besides the overcurrent line protection functions, instantaneous phase and neutral, with a circuit breaker
and protection against phase and neutral inverse time overcurrent, the relay provides phase imbalance
and circuit breaker fault functions as well as a thermal image protection.
As this is a line protection, a recloser is fitted. This automated control shall permit closure (up to five
attempts) with the possibility of programming each reclosing time. It can be blocked by various means,
from the HMI with a separate key to remote communications and inputs.
Further functions have been included which support line protection, such as the cold load pickup or the
trip circuit supervision.
All models include a circuit breaker management block, which:
- Monitors the condition of the circuit breaker, the number of openings and accumulated amperes.
It generates an indication when there is an excessive number of openings and accumulated
amperes.
- Determines if an opening fault has occurred
- Allows circuit breaker opening and closing commands to be given from the HMI (using different
keys) and through local and remote communications
Depending on model different functions are optional:
SILA Adaptation A : 50-1, 51-1, 50G-1, 51G-1, CLP, Second Harmonic Blocking (SHB), 49 and
86. Optionally, 52, 50BF and trip block for switch disconnector.
SILA Adaptation D : 50-1, 50-2, 51-1, 51-2, 50G-1, 50G-2, 50N-1, 50N-2, 51G-1, 51G-2, 51N-
1, 51N-2, 52, 50BF, 46, 79, 74TCS, CLP, 86, 49, Second Harmonic Blocking (SHB) and SOTF.
Optionally, 60CTS, 37, 46BC and trip block for switch disconnector
The SIL-A relay has 6 outputs that can be set by the user and 6 configurable inputs.
The relay has an LCD with two lines and twenty columns and a membrane keyboard with six buttons.
These allow the relay status, the current measurements in the primary winding and the events or
incidents associated with the relay to be seen, and adjustments to be made to the protection criteria.