FANOX SIL B, Руководство пользователя

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3.
DESCRIPTION
3.1. Introduction
The worldwide energy industry is going through a profound transformation. Due to huge energy
demands, more distribution lines with advanced monitoring systems are needed. Assuming the need for
creating intelligent infrastructure, FANOX has developed the SIL range of products to carry out this
function.
The SIL-B relay is designed to protect a feeder system using current and voltage functions. It is designed
to use a circuit breaker as a cut-off component.
The protection functions may be activated selectively either by using the front-mounted panel, or through
the communications link to the SIcom program, which facilitates accurate coordination with other
equipment.
As an additional advantage all the models have been designed so that they can be powered by an
external battery. This facilitates putting centers into operation, event management and specific work
under adverse conditions.
3.2. Description
The power supply voltage for the SIL-B can be selected by model. We cover a wide range of power
supply voltages with two models:
- 24Vdc
– 48Vdc
- 90Vdc
– 300Vdc / 110Vac – 230 Vac
The following protection functions are available on the SIL-B:
- Phase and neutral, definite-time and inverse-time (IEC and IEEE curves) overcurrent protections,
with directional discrimination.
- Negative sequence overcurrent protection.
- Undercurrent protection (it depends on model)
- Phase and neutral overvoltage protection
- Phase undervoltage protection
- Directional overpower protection
- Thermal image protection
- Overfrequency and underfrequency protection (it depends on the model)
This manual provides full details of the number of available protection units, along with their parameters
and operating characteristics.
As this is a line protection device, it is also fitted with a recloser (79). This automated device allows the
line to be closed up to five times. Each reclosure time can be programmed. The equipment can be
locked in different ways: from the keypad (for which there is a separate key), from remote
communications stations and through an input.
Depending on model, the device is fitted with synchronism protection function that is designed to verify
the conditions that the voltage of both ends of the switchgear must have to carry out to allow the closure
of the switchgear
.
A series of other complementary line protection functions have been included, such as cold load pickup
and closure circuit monitoring.
All models include a circuit breaker management block, which: