Generator protection relay FANOX SIL-G

Generator protection relay

FANOX SIL-G

The SIL-G is a feeder relay with current, voltage, and frequency functions for primary and secondary distribution with an auxiliary power supply of 24- 230 Vdc/ac, 48-230 Vdc/ac, or 24-48 Vdc (depending on the model).
4 current channels for conventional /1 and /5 current transformers and 5 voltage channels for conventional VTs.
Capability of measuring up to 1.000 volts when it is connected directly to the low voltage line.
Metal housing with a high electromagnetic compatibility level (EMC) and a wide operating temperature range.
Protection against decoupling, load shedding, and Loss of Main (islanding). Loss of Main (islanding) occurs when part of the public utility network loses connection with the rest of the system. In case this situation is not detected, a network safety hazard can be present if the generator remains connected since an automatic reconnection of the generator may occur, causing damage to the generator and the network. SIL-G relay detects this hazardous situation thanks to its voltage and frequency functions based on the Rate Of Change Of Frequency (ROCOF) method.
Signaling and control of the circuit breaker (52 function) and the recloser (79 function).
The front part of the SIL-G relays is provided with a navigation keypad made of 7 keys (including the RESET key), 6 programmable hot keys that by default are configured: two (2) keys to open and close the CB, two (2) keys to block and unblock the recloser and two (2) keys to put the relay in local or remote mode with their associated three (3) configurable control LEDs. Besides, eight (8) programmable alarm LEDs.
Arc Flash detection (AFD) with 4 AFD inputs and 4 high-speed outputs available depending on the model. This functionality, along with the possibility of having WIFI communication, allows the users to set and configure the relay through Fanox free software and to operate the relay without being present in the installation, prioritizing security.
In case a CB is manually closed, a switch on to an existing fault may occur. This fault condition is critical if the overcurrent protection function does not clear the fault until the adjusted time delay is ﬁ It is necessary, in those cases, to clear the fault quickly through the SOTF function.
To allow the communication, the SIL-G relays are provided with a local micro-USB front port and with remote communication options (ports and protocols) on the rear side:
Rear Serial Port: Modbus RTU, DNP3.0 Serial or IEC60870-5-103 (selectable by general settings).
Rear Ethernet Port (RJ45 or FO-LC): Modbus TCP/IP, DNP3.0 TCP/IP, IEC60870-5-104 or IEC61850 (selectable by general settings) + SNTP Protocol + Web Server.
Wireless communication (Wi-Fi) and synchronization through IRIG-B are optional (depending on the model).
An alarm panel is available.
The SIL-G is provided with (depending on the model):
- 8 conﬁgurable inputs and 7 conﬁgurable outputs.
- 24 conﬁgurable inputs and 7 conﬁgurable outputs.
- 8 conﬁgurable inputs and 18 conﬁgurable outputs.
- 16 conﬁgurable inputs and 11 conﬁgurable outputs.
- 8 conﬁgurable inputs, 7 conﬁgurable outputs, 4 AFD inputs, and 4 High-Speed outputs.
SIL-G is ﬁtted with demand of power (LDP - Load Data Proﬁling) with the following characteristics:
- Number of records: 2160.
- Circular recording mode.
- Sampling rate (interval): conﬁgurable through communications (1-60 min).
SIL-G is provided with non-volatile RAM memory in order to store up to 3072 events and the disturbance fault recording (DFR), maintaining date & time thanks to its internal RTC (Real Time Clock). The configurable options are:
- 5 records in data and COMTRADE format (300 cycles each record): 1 to 8 pre-fault cycles + 292 to 299 post-fault cycles.
- 25 records in data and COMTRADE format (60 cycles each record): 1 to 8 pre-fault cycles + 52 to 59 post-fault cycles.
- 50 records in data and COMTRADE format (30 cycles each record): 1 to 8 pre-fault cycles + 22 to 29 post-fault cycles.
- 100 records in data and COMTRADE format (15 cycles each record): 1 to 8 pre-fault cycles + 7 to 14 post-fault cycles.
Each oscillographic record contains 10 analogue channels and up to 96 configurable digital channels. The oscillography is downloaded by a communications port. The SICom communications program allows the oscillography record to be downloaded and saved in COMTRADE format (IEEE C37.111-1991).