CT08-5 Taped A 5P80 CT16-5 Taped A 5P80. * In is the value of the primary nominal current of the transformer.

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1 SI-B Overcurrent and Earth Fault Protection Relay for Secondary istribution ual & Self Powered Main characteristics The SI-B is a ual & Self powered overcurrent protection relay using the operating current through three specific current transformers fitted on the lines. These transformers are also used to obtain current measurements. Optionally, SIB relay can be used with auxiliary power supply (24 Vdc, Vac or 23 Vac). The equipment can be occasionally supplied by an external battery portable kit (KITOM). Internal commissioning battery as optional. 5, 5/5, 5N, 5/5N protection functions. Trip block for switch disconnector + 49T + 49 as optional. Its compact size makes SI-B really easy to install and its light weight helps the customer to save costs in transport. Low power consumption (.5 W, 24 Vdc). Non-volatile RM memory in order to store up to events and 4 fault reports, without power supply thanks to its internal RT (Real Time lock). USB connection on the front (Modbus RTU communication protocol). There are bistable magnetic indicators which indicate the trip cause, maintaining their position even though the relay loses the supply (flags). In self powered modes, SI-B starts-up from.4 Is of primary three phase current using specific Ts. Specific Ts for SI-B Relays TPE TS Special Ts Type ode *In Range lass T8-5 Taped P8 T6-5 Taped P8 * In is the value of the primary nominal current of the transformer. Special Ts Type ode *In Range lass T P8 T P8 T P8 T P8 T P8 T P8 EPOXY RESIN * In is the value of the primary nominal current of the transformer. 2

2 Technical specifications SI-B Functions diagram SI-B Battery USB 5/5 5N 5/5N 49T* 49* Vaux* Flag* RT FRM Ext. Trip* Trip* Block 3 T power supply-measurement Striker Technical specifications SI-B onnections diagram SI-B 2

3 Technical parameters SI-B and Specific Ts Function 5 Function 5N Function 5/5 Function 5/5N Operating range:.2 to 2 x Is (step.) Operating time:.2 to 3 s (step. s) ctivation level % eactivation level 9% Timing accuracy: ± 4 ms or ±.5% (greater of both) Operating range:.2 to 2 x Is (step.) Operating time:.5 to 3 s (step.s) ctivation level % eactivation level 9% Timing accuracy: ± 4 ms or ±.5% (greater of both) Operating range:.2 to 7 x Is (step.) urves: IE and NSI-IEEE Operating time: IE Inverse curve, IE very inverse curve, IE extremely inverse curve IE long time inverse, NSI Inverse curve, NSI very inverse curve, NSI extremely inverse curve. efined time:.2 to 3 s (step. s) ial:.5 to.25 (step.) urve, activation level % urve, deactivation level % efined time, activation level % efined time, deactivation level 9% Timing accuracy: ± 4 ms or ± 5% (greater of both, considering the operating time is influenced by the used T) Operating range:.2 to 7 x Is (step.) urves: IE and NSI-IEEE Operating time: IE Inverse curve, IE very inverse curve, IE extremely inverse curve IE long time inverse, NSI Inverse curve, NSI very inverse curve, NSI extremely inverse curve. efined time:.2 to 3 s (step. s) ial:.5 to.25 (step.) urve, activation level % urve, deactivation level % efined time, activation level % efined time, deactivation level 9% External trip. harging time 7 seconds Function 49T (*) Function 49 (*) Trip Block (*) Trip output Frequency urrent measure Fault reports ommunication uxiliary supply Battery supply Self-power from current Environment Transformers Mechanical features harging time s (optional) Function permission: yes/no Tap:. a 2.4 Is (step.) heating: 3 a 6 minutes (step min) cooling: a 6 x heating (step ) larm level: 2 a 99% (step %) Trip level: % Trip reset: 95% of alarm level Timing accuracy: ± 5% regarding theoretical value Blocking: Yes/no Blocking limit:.5 to 2 x In (step.) 24 Vdc; 35 mj (activation of the striker or low powered coil) 5/6Hz True RMS Sampling: 6 samples/cycle Four fault reports USB port: Modbus RTU 23 Vac, ±2 % Vac, ±2 % 24 Vdc, ±2 % With USB KITOM adapter ommissionig battery(*) Three phase self-power level: I >,4 x Is min Operating temperature: -4 to 7º Storage temperature: -4 to 8 º Humidity: 95% Power supply and measurement specific Ts Metallic box Panel Mounting ¼ Rack-4U IP-54 panel mounted (*) Optional depending on the model Technical parameters EPOXY RESINE TS pplication Indoor Use lass of insulation lass E Frequency 5-6 Hz Ratio /,75 Primary onductor able max. ø 5 mm Terminal for 6 mm2 solid/ Sec. wire diameter 4 mm2 strand (Wire NOT included) Test winding,288 Nominal Burden, V Protection 5P8/P8 Material PU & P6.6 Technical parameters TPE TS pplication lass of insulation Frequency Ratio Primary onductor Sec. wire diameter /length Test winding Burden Protection Indoor Use lass 5-6 Hz /,75 able max. ø 75 mm 2,5 mm2 / 5 mm (Wire included),288 Nominal,5 V 5P8 22

4 imensions and cutout SI-B UTOUT imensions Resined epoxi T B Ø 6.5 imensions T6-5 Taped 35 mm imensions T6-5 Taped BLUE BLK WHITE able 2,5 mm2 / 2.5 mm RE S S2 O 5 mm 8 mm I 75 mm imensions T8-5 Taped imensions T8-5 Taped BLUE able 2,5 mm2 / 5 mm BLK WHITE RE S S2 O 5 mm 5 mm I 75 mm 23

5 Selection & Ordering data SI-B SI-B Overcurrent & Earth Fault Protection Relay - ual & Self Powered PROTETION FUNTIONS 5 + 5/5 + 5N + 5/ 5N PHSE MESUREMENT efined by General Settings 2 3 B B 2 B NEUTRL MESUREMENT Internal measurement NET FREQUENY efined by General Settings POWER SUPPLY Self powered Self powered + 23 Vac (ual) Self powered + Vac (ual) Self powered + 24 Vdc (ual) Self powered + ommissioning battery Self powered + 23 Vac (ual) + ommissioning battery Self powered + Vac (ual) +ommissioning battery Self powered + 24 Vdc (ual) + ommissioning battery ITIONL FUNTIONS Trip Block for switch disconnector OMMUNITIONS USB (Modbus RTU) INPUTS-OUTPUTS Trip (striker) Trip (striker) + External trip input (49T) + magnetic indicator Trip (striker) + External trip input (49T) + magnetic indicator + 2 outputs MEHNIL SSEMBLY Vertical ssembly Horizontal ssembly LNGUGE English, Spanish and German English, Spanish and Turkish English, Spanish and French English, Spanish and Russian PTTION - Example of ordering code: SI B B SIB B 24

6 pplication and installation options for our SI-B Relay Specific urrent Transformers lay offers a really reduced dimensions, making this relay suitable for RMUs and compact switchgears in those installations where the space is critical. The current adaptation is carried out by the specific external Ts, that apart from adapting the current to valid values for the relay electronic, allow to work with wider primary ranges than the standard Ts. E.g. With only one model of T, T-6, it is possible to protect switchgears from 3 kvs to 5 kvs. suitable application is the transformation switchgears in wind turbines. In this case, the space is very reduced and protection for different powers with a unique T is required. part from a complete protection, SI-B is provided with events and fault reports for an exhaustive analysis of the fault situation, magnetic indicators (flags) to signal the trip maintaining their position even when the power supply is lost and front USB to power the relay and to communicate through a USB cable connected directly to the P. Understood these advantages, SI-B relay becomes an optimum solution for the described applications and therefore, FNOX has developed a complete family of specific Ts for different primary ranges to adapt this solution to different installations. Mounting solutions Installation on the bushings Many switchgears manufacturers use standard cable connectors (bushings) with some pre-defined dimensions. This fact allows Fanox to design some taped Ts that are mounted on the bushings. Installation on the cables Other switchgears are provided with a gap (drawer) at the bottom part of the switchgear to access to the current cables. In this way, the Ts are mounted directly on the mentioned current cables. To cover this application, Fanox has designed some epoxy resin Ts with special anchors to be fixed at the bottom of the switchgear. Test Winding SI-B relay works with current transformers with secondary different to or 5. For this reason, it is not possible to inject secondary current directly through T S-S2 terminals. In this case, the current transformer, is provided with a second winding (- terminals) to inject secondary current. This secondary current will induce a primary current in the relay what facilitates the functional tests performance. URRENT TRNSFORMER Injected current Induced primary current T-8 25 T-6 5 T-32 T-64 2 T-28 4 T For example, with T6, if is injected through the test winding terminals, a primary current of 5 will be read in the relay. epending on the used T, the induced primary current when is injected is as follows: 25