Trip Units - Factory mounted. GT-E Trip Unit with: None GTG00K1-SF LT-C 0,2-1 x In = Ir LTDB. ST I²T ON or OFF STDB

Transcription

1 ntelliguard G Trip Units - actory mounted GT- LT- asic functionality esignation xtended functionality at. No. Ref. No. GT- Trip Unit with: None GTG00K-S LT- 0, - x In = Ir I²T ON or O GT-Rating Plug Required for all types GTPUNI I t on Order codes LT- G I t on I t on GT- Trip Unit with: None GTG00K-S LT- 0, - x In = Ir I²T ON or O G I²T ON or O G GT-Rating Plug Required for all types GTPUNI G GT- S LT- GT-S Trip Unit with: None GTG00K9-S LT- 0, - x In = Ir I²T ON or O I I t on I GT-Rating Plug Required for all types GTPUNI LT- G I t on I t on I GT-S Trip Unit with: None GTG00K-S LT- 0, - x In = Ir + Modbus ommunication GTG00K-S I²T ON or O G I²T ON or O G I GT-Rating Plug Required for all types GTPUNI LT- G G I t on I t on l ext. GT-S Trip Unit with: None GTG00K4-S LT- 0, - x In = Ir + Modbus ommunication GTG00K4-S I²T ON or O G I²T ON or O G I ext. GT-Rating Plug Required for all types GTPUNI G.

2 ntelliguard G Trip Units - actory mounted GT- N LT- asic functionality esignation xtended functionality at. No. Ref. No. xtended functionality RLT I t on I GT-N Trip Unit with: Measurement unit () GTG00K9-4S 4088 LT- 0, - x In = Ir RLT Instantaneous I²T ON or O I RLT GT-Rating Plug Required for all types GTPUNI lectronic Trip Units LT- G asic functionality I t on G I t on xtended functionality I GT-N Trip Unit with: Measurement unit () GTG00K-4S LT- 0, - x In = Ir RLT Instantaneous I²T ON or O + Modbus ommunication GTG00KT6S G I²T ON or O G I RLT + Zone Selective Interlock on I, & G functions GT-Rating Plug Required for all types GTPUNI RLT LT- G asic functionality GT-N Trip Unit with: Measurement unit () GTG00K4-4S LT- 0, - x In = Ir RLT Instantaneous + Modbus ommunication GTG00K4T6S I²T ON or O G I²T ON or O G I ext. RLT + Zone Selective Interlock on I ext., & G functions asic functionality I t GT-Rating Plug Required for all types GTPUNI I t on G I ext. xtended functionality xtended functionality RLT () n auxiliary Power onditioner is obligatory when a fully functioning measurement is required see page..

3 ntelliguard G Trip Units - actory mounted Order codes GT- H LT- LT- asic functionality esignation xtended functionality at. No. Ref. No. xtended functionality I t on I Trip Unit with: LT and shape hoice (LT or LT) GTG00N9-5S 4088 LT- 0,- x In =Ir Measurement Unit () -OR- ata aquisition & Relay functionality LT- 0,- x in =Ir RLT Instantaneous I T ON or O LT and shape hoice (LT or LT) GTG00N9-8S Measurement Unit () I ata aquisition & Relay functionality RLT RLT Instantaneous Modbus ommunication LT and shape hoice (LT or LT) GTG00N9-9S Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication GT-Rating Plug Required for all types GTPUNI RLT i LT- G LT- asic functionality I t on xtended functionality G RLT i I t on I Trip Unit with: LT and shape hoice (LT or LT) GTG00N5-5S LT- 0,- x In =Ir ual G Protection (Res./Sum or T) -OR- Measurement Unit () LT- 0,- x in =Ir ata aquisition & Relay functionality RLT Instantaneous I T ON or O LT and shape hoice (LT or LT) GTG00N5-8S 4088 G sum. I T ON or O ual G Protection (Res./Sum or T) -N/OR- Measurement Unit () G T I T ON or O () ata aquisition & Relay functionality G RLT Instantaneous I Modbus ommunication RLT LT and shape hoice (LT or LT) GTG00N5-9S ual G Protection (Res./Sum or T) Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication LT and shape hoice (LT or LT) GTG00N5T5S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous LT and shape hoice (LT or LT) GTG00N5T8S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Modbus ommunication LT and shape hoice (LT or LT) GTG00N5T9S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication GT-Rating Plug Required for all types GTPUNI () n auxiliary Power onditioner is obligatory when a fully functioning measurement is required see page. () The use of an interposing current transformer is required. (supplied, mounted in device).4

4 ntelliguard G Trip Units - actory mounted GT- H LT- G LT- asic functionality esignation xtended functionality at. No. Ref. No. I t on xtended functionality G I t on RLT i () n auxiliary Power onditioner is obligatory when a fully functioning measurement is required see page. () The use of an interposing current transformer is required. (supplied, mounted in device) l ext. Trip Unit with: LT and shape hoice (LT or LT) GTG00N7-5S LT- 0,- x In =Ir ual G Protection (Res./Sum or T) -OR- Measurement Unit () LT- 0,- x In =Ir ata aquisition & Relay functionality RLT Instantaneous I T ON or O LT and shape hoice (LT or LT) GTG00N7-8S G sum. I T ON or O () ual G Protection (Res./Sum or T) -N/OR- Measurement Unit () G T I T ON or O ata aquisition & Relay functionality G RLT Instantaneous I ext. Modbus ommunication RLT LT and shape hoice (LT or LT) GTG00N7-9S ual G Protection (Res./Sum or T) Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication LT and shape hoice (LT or LT) GTG00N7T5S 4088 ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous LT and shape hoice (LT or LT) GTG00N7T8S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Modbus ommunication LT and shape hoice (LT or LT) GTG00N7T9S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication GT-Rating Plug Required for all types GTPUNI lectronic Trip Units.5

5 ntelliguard G Trip Units - actory mounted Order codes GT- H LT- G LT- asic functionality esignation xtended functionality at. No. Ref. No. I t on xtended functionality G I t on RLT i l ext. Trip Unit with: LT and shape hoice (LT or LT) GTG00N6-5S LT- 0,- x In =Ir ual G Protection (Res./Sum or T) -OR- Measurement Unit () LT- 0,- x In =Ir ata aquisition & Relay functionality RLT Instantaneous I T ON or O With standard Instaneous Idem with xtended Instananeous GTG00N8-5S G () sum. I T ON or O -N/OR- LT and shape hoice (LT or LT) GTG00N6-8S G () T I N ON or O () ual G Protection (Res./Sum or T) G Measurement Unit () I or I ext. ata aquisition & Relay functionality RLT RLT Instantaneous Modbus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8-8S LT and shape hoice (LT or LT) GTG00N6-9S ual G Protection (Res./Sum or T) Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8-9S LT and shape hoice (LT or LT) GTG00N6T5S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous With standard Instaneous Idem with xtended Instananeous GTG00N8T5S 4088 LT and shape hoice (LT or LT) GTG00N6T8S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Modbus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8T8S () n auxiliary Power onditioner is obligatory when a fully functioning measurement is required see page. () oes NOT trip the associated ntelliguard G reaker, UT produces an larm signal () The use of an interposing current transformer is required. (supplied, mounted in device) LT and shape hoice (LT or LT) GTG00N6T9S ual G Protection (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8T9S GT-Rating Plug Required for all types GTPUNI

6 ntelliguard G Sensors for Trip Units or use with Ground fault Residual (sum) protection Rogowski coils: Order codes nvelope nvelope nvelope at. No. Ref. No. at. No. Ref. No. at. No. Ref. No. 400 G04HNR G04HNR G07HNR G07HNR G08HNR G08HNR G0HNR G0HNR GHNR GHNR G6HNR G6HNR G0HNR G0HNR G5MNR GLNR GLNR G40LNR G40LNR G50LNR G64LNR Sensors for Trip Units or use with Ground fault protection, Source Ground Return method arth leg urrent Transformers - Kit includes urrent Transformer. n interposing current transformer is also required (supplied with Trip Unit) nvelope nvelope nvelope at. No. Ref. No. at. No. Ref. No. at. No. Ref. No. 400 G04HNT G04HNT G07HNT 4080 G07HNT G08HNT 4080 G08HNT G0HNT 4080 G0HNT GHNT GHNT G6HNT G6HNT G0HNT G0HNT G5MNT GLNT 408 GLNT G40LNT 408 G40LNT G50LNT G64LNT

7 ntelliguard G ield Mounted (spare) Trip Units lways specify Nominal current and reaker serial Number on Ordering GT- LT- G asic functionality esignation xtended functionality at. No. Ref. No. I t on I t on GT- Trip Unit with: None GTG00K-SR LT- 0, - x In = Ir I T ON or O G I T ON or O G GT-Rating Plug Required for all T types GTPUNI Order codes GT- S LT- G I t on G G I t on I i GT-S Trip Unit Modbus ommunication GTG00K4-SR LT- 0, - x In = Ir I T ON or O G I T ON or O G I GT-Rating Plug Required for all types GTPUNI GT- N LT- G I t on I t on G I hi GT-N Trip Unit Measurement unit () LT- 0, - x In = Ir Modbus ommunication Zone Selective Interlock on, I T ON or O I & G G I T ON or O G I ext. GTG00K4T6SR GT-Rating Plug Required for all types GTPUNI

8 ntelliguard G ield Mounted (spare) Trip Units lways specify Nominal current and reaker serial Number on Ordering GT- H G LT- asic functionality esignation xtended functionality at. No. Ref. No. I t on xtended functionality G I t on RLT i Trip Unit with: LT and shape hoice (LT or LT) GTG00N5T8SR LT- 0, - x In = Ir ual G Protection (Res./Sum or T) -OR- Zone Selective Interlock on, I & G LT x In = Ir Measurement Unit () ata aquisition & Relay functionality I T ON or O RLT Instantaneous Modbus ommunication G or G () sum. I T ON or O With standard Instaneous -N/OR- Idem with xtended Instananeous GTG00N7T8SR G () T I N ON or O () G LT and shape hoice (LT or LT) GTG00N5T9SR I or I ext. ual G Protection (Res./Sum or T) RLT Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N7T9SR LT and shape hoice (LT or LT) GTG00N6T8SR ual G larm (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Modbus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8T8SR LT and shape hoice (LT or LT) GTG00N6T9SR ual G larm (Res./Sum or T) Zone Selective Interlock on, I & G Measurement Unit () ata aquisition & Relay functionality RLT Instantaneous Profibus ommunication With standard Instaneous Idem with xtended Instananeous GTG00N8T9SR GT-Rating Plug Required for all types GTPUNI GT Trip Unit with NO protection () n auxiliary Power onditioner is obligatory when a fully functioning measurement is required see page. () oes NOT trip the associated ntelliguard G reaker, UT produces an larm signal () The use of an interposing current transformer is required. (supplied with Trip Unit) I hi (or Non utomatic types) GG00K-SR lectronic Trip Units.7

9 ntelliguard G lectronic Trip Units layout & Main menu lectronic Trip Units UP MTR TUS VNTS UP MTR TUS VNTS UP MTR TUS VNTS UP MTR TUS VNT LOG VNTS State of the rt lectronic Trip Unit ll ntelliguard G Power ircuit reakers are equipped with a digital electronic trip unit, available in four basic versions, S, N and H. ach has a common design that comes with a screen providing an ammeter and allowing a simple and accurate menu driven adjustment of the breaker parameters across a broad current range. ll functionality is menu driven accessed by using 4 setting and one enter key thus allowing a fast and accurate setting of the device. These have the following functionality: UP: Scroll up, Increment Value OWN: Scroll down, ecrement value NT function, next page PRVIOUS function, previous page SV setting into memory fter inserting the Universal rating plug, the device can be adjusted and the installed options set. In situations where the installation is not yet connected to the power supply, the use of the separately available TR with Power Pack is advised (at No. GTUTK0). lternatively the internal Trip Unit attery power pack can be used. epressing any key on the face of the trip unit powers the unit from its internal battery. attery power is maintained for 0 seconds after the last key is pressed. ll normal setup, meter, and status functions can be performed with battery power. In Power On situations the Trip Unit display is only functional when the breaker is carrying at least 0% of its nominal current value (Single phase). UP MNU To enter this option begin the process by pressing the UP or OWN key until UP is selected on the screen. Pressing the NT or PRVIOUS key allows one to enter the setup mode. fter selecting this mode, all functions can be chosen by depressing the NT or PRVIOUS key. Within the setup menu all breaker protection values, trip unit parameters, relaying functions in and outputs, communication and trip unit access codes are set ach ntelliguard G lectronic trip units provides long-time over-current protection (LT), longtime delay (LT) and some form of Short-circuit over-current protection ( and/or I, H, RLT). epending on the chosen Trip Unit Tier or Type and the selected options a, host of other protection, metering relaying functions and a wave form capture option are available. In the following pages each of these functions are described in detail. set of tabs placed below each description indicate in which Trip Unit Tier the described function is present. MTR To enter this option begin the process by pressing the UP or OWN key until to MTR is selected on the screen. Pressing the NT or PRVIOUS key allows one to view various groups of measurements as urrent, Voltage, real, apparent and reactive Power for the electrical system protected by the device. oth currents and voltages are computed as true rms values. ll ntelliguard G Trip Units are equipped with an mmeter. The full measurement package is offered in the GT-N and variants. The ammeter and other measurement options are only available when the trip unit is powered by the distribution system, the internal Trip Unit batteries or the external Test/battery pack. The full measurement package requires the use of a separately available phase instrument transformer and Power onditioner pack. TUS To enter this option begin the process by pressing the UP or OWN key until TUS is selected on the screen. The Status option indicates the present status and settings of the trip unit and circuit breaker. VNTS To enter this option begin the process by pressing the UP or OWN key until VNTS is selected on the screen. Pressing the NT or PRVIOUS key allows one to access events. Here a total of 0 events with data as event type and event magnitude are stored. The connection of a 4V auxiliary supply to the Trip Unit will expand this option to include a time stamp of each event. Tripping events as LT,, I G, Overload Trip imminent (pre alarm) or any other, release or relay trip event are visualized with the associated levels. It is possible to clear this so called trip register locally. If the Trip Unit is equipped with this option, a history of up to 56 Tripping occurrences with data as event type and event magnitude are stored..

10 ntelliguard G Overload Protection LT- and LT Overload (LT-) Protection The ntelliguard G lectronic Trip has an extremely accurate and easy to set overload or Long Time (LT-) Protection. It is designed to pick up overloads that exceed % of the set value within two hours with a tolerance of 0% (). The available 66 different current adjustments (see page.4) result in an extremely broad setting range of 0, to times the chosen breaker rating (In). The LT- type is designed to be used in association with down- and upstream circuit breakers and has a so called I t shape producing a curve form similar to standard industrial thermal magnetic protection devices. The Time-urrent protection curve depicted here is drawn in cold state. thermal model in the device corrects for the heating of the connected lines and equipment. This device continues to track cooling even when disconnected in Thermal Memory. The reconnection of power to over-heated lines and equipment thus being prevented. Thermal Memory tracks events after power disconnection for up to minutes. In order to allow an accurate adjustment to the thermal properties of the protected equipment and to finely match the curve with those of Upstream & ownstream devices LT time bands are available. The table indicates the minimum delay time and maximum total interruption times for frequently used reference points on the curve of each band. The graph portrays the LT behaviour for the time-current bands -4, - 8, - & -. UP MTR TUS VNTS 0000 h URRNT 000 Ie LT- Protection evice bands LONG TIM pickup 0.5 N 5 Ir = 500 Overload Protection 0,,00 7, x 0,00 00,00 ] Overload Tripping times at indicated overload levels per selected LT band, in Seconds x Ir min max.5 Max. 7,8,4 46,7 6, 9, Min. 4,0,0 4,0,0 48,0 64, 80, 96, Max.,,86 7,7 0, 5,5 5,8 0,9 6, 4, 46,4 5,5 6,8 7, 8,4 9, Min. 0,4 4,8 6,4 9,64,9 6, 9,,5 5,7 8,9, 8,6 45,0 5,4 57,8 64, 70,7 77, 8,6 90,0 96,4 7. Max. 0,,4,66,49, 4,5 4,98 5,8 6,64 7,47 8,0 9,96,6, 4,9 6,6 8, 9,9,6, 4,9 Min. 0, 0,07,6,5,69,,76 4,0 4,8 5,7 6,45 7,5 8,60 9,67 0,7,8,9 4,0 5,0 6, Motor Protection lass to I b Standard on GT- GT-S GT-N () Meeting the requirements of I and I

11 ntelliguard G Overload Protection LT- and LT lectronic Trip Units Overload (LT-) Protection Optionally a second type of overload protection is available. esigned to pick up overloads that exceed % of the set value within two hours, with a tolerance of 0% (), it has the same 66 different current adjustments as the standard type thus offering a extremely broad setting range of 0, to times the chosen breaker rating. The Time-urrent protection curve depicted here is drawn in cold state. thermal model in the device corrects for the heating of the connected lines and equipment. This device continues to track cooling even when disconnected in Thermal Memory. The reconnection of power to over- heated lines and equipment thus being prevented. Thermal Memory tracks events after power disconnection for up to minutes. The LT- device is designed to be used in association with down- and upstream uses and produces a curve form similar to those of standard industrial fuses. total of LT time bands are available, thus extending the total number of bands to 44. The table indicates the minimum delay time and maximum total interruption times for frequently used reference points on the curve of each band. The graph portrays the LT behaviour for the time-current bands -4, -9, -5 and -. UP MTR TUS VNTS 0000 h URRNT 000 Ie LT- Protection evice - ands LONG TIM pickup 0.5 N Ir = ,,00 0,00 00,00 ] Overload Tripping times at indicated overload levels per selected LT band. in Seconds x Ir min max,5 Max.,44 4,9 7,6,9 7,,9, 4, Min. 4,87,9 5,0 7,67 0,7 4,4 9, Max. 0,09 8 0,74,08,50,0,67,49 4,5 5,80 7,9 9,9,9 5,0 8,9,8 9,9 7,5 47,0 58,9 7, Min. 0,04 0, 0, 0, 8 7 0,90,9,55,0,57,9 4,8 5,9 6,68 8,4, 6,7 0,9 6,, 7, Max. 0,0 0,05 0,06 0,08 0, 0, 0,6 5 0,57 0,7 0,90,,4,78,8 Min. 0,0 0,0 0,0 0,04 0,05 0,06 0,08 0,0 0, 0,0 0,5 0, 0 0,50 0,79,0 Standard on.4

12 ntelliguard G Table indicating available Long Time settings Per chosen reaker Rating (In) 66 urrent values (Ir) can be set reaker Primary Setting Ie values in mps Multip. Rating Secundary Setting Ir values in mps , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , reaker Primary Setting Ie values in mps Multip. Rating Secundary Setting Ir values in mps , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Overload Protection.5

13 ntelliguard G Short-circuit Protection and lectronic Trip Units Overcurrent Protection against Short-circuit:, The ntelliguard G lectronic Trip Unit and breaker combination can be equipped with a number of different Short-circuit protection devices each with their own distinctive properties and field of application. The Timed Short-circuit Protection evice is designed to offer selectivity over a defined current range and offers a unique combination of multiple time bands and current settings. To allow selectivity with a wide range of different downstream devices whilst not unnecessarily sacrificing clearing time, 7 different time bands are available. The device has an adjustment range of,5 to () (+-0%) times the chosen Long Time current value (Ir) in steps of 0,5 (pick up setting). The graph indicates 6 of the available 7 time bands across the full adjustment range. The table contains the minimum delay time and the maximum total interruption times for all time band settings. UP MTR TUS VNTS 0 URRNT 000 Ie - Protection evice I t O- - bands SHORT TIM PIKUP x lr N SLOP O 0, 0, 0,0 0,00,00 0,00 00,00 ] Short Time tripping times at indicated levels per selected band - I t O, in Milliseconds,5 x ±0% x ±0% x Ir Min Max Tripping Non Tripping Tripping Non Tripping Standard on GT- GT-S GT-N () Is limited to lower values in certain cases, please refer to page..6

14 ntelliguard G Short-circuit Protection and I T slope 0 0, 0, - Time - Protection - evice I t ON "low" I t ON "low" - bands - bands Timed Short-circuit () Protection I T ands (slope) () The device can also be set to a I T slope value. The available multiple I t slopes are normally used to achieve selectivity with downstream fuses or to improve selectivity with downstream circuit breakers. The device has an adjustment range of,5 to () (±0%) times the chosen Long Time current value (Ir) in steps of 0,5 (pick up setting) and 7 time bands. The three graphs depict the available I t slopes (Low, Med. or High) and their intersection with a selection of the available 7 time bands across the full adjustment range. lectronic Trip Units Short-circuit Protection 0,0 0,00,00 0,00 00,00 ] UP MTR TUS VNTS SHORT TIM PIKUP x lr N SLOP O 0 - Time - Protection - evice I t ON "med." I t ON "med." - ands - ands 0 - Time - Protection - evice I t ON "max." I t ON "max." - ands - ands 0, 0, 0, 0, 0,0 0,00,00 0,00 00,00 0,0 0,00,00 0,00 00,00 ] ] Standard on GT- GT-S GT-N () When the LT use band option is selected ( ands) the I T slope functions of this device are disabled.7

15 ntelliguard G Short-circuit Protection; Instantaneous (I) lectronic Trip Units Instantaneous Short-circuit (I) Protection user settable device that allows a high speed fault interruption at a pre-determined current level. This device can be used with the short time delayed () Short-circuit protection device or as replacement thereof. The device has a current adjustment of to 5 (±0%) times the chosen Primary urrent Value (Ie) in steps of 0,5. The device can also be switched O. On breakers with a rating of more than 4000 the maximum setting of 5 x is in some cases limited to a lower value due to the breaker current rating and its Short-circuit withstand value (see page.). The Instantaneous tripping system used in the ntelliguard G lectronic Trip Unit has a unique programming feature that waits for the downstream device to trip before reacting to an overcurrent fault. This providing the user with a unique combination of Speed and Selectivity. UP MTR TUS VNTS RKR RTING 000 IN PIKUP x le I - Protection evice The graph indicates the Maximum interruption time and non tripping time across the full current setting band and the transition to the HSIO protection device (see page.). 0, 0,0 Tripping Time in Seconds (S) 0,00,00 0,00 00,00 x reaker Rating (In) Standard on GT-S GT-N.8

16 ntelliguard G Short-circuit Protection; Instantaneous (I) xtended Range Instantaneous Protection erived from, and based on the same principles as the standard Instantaneous protection but with and extended current adjustment range. This high-level instantaneous device extends the standard range from - 5 to - 0 (±0%) times the chosen Primary urrent Value (Ie). Until 5 x Ie in steps of 0,5 and for the extended setting (above 5 x Ie) in steps of. The device can also be switched O. On breakers with a rating of more than 000 the maximum setting of 0 x is in some cases limited to a lower value due to the breaker current rating and its Short-circuit withstand value (see page.). s with the standard Instantaneous tripping system the device has a unique programming feature that waits for the downstream device to trip before reacting to an overcurrent fault. This providing the user with a unique combination of Speed and Selectivity. The graph indicates the Maximum interruption time and non tripping time across the full current setting band and the transition to the HSIO protection device (see page.). UP MTR TUS VNTS RKR RTING 000 IN PIKUP 6 x le xt. I - Protection evice Short-circuit Protection 0, 0,0 Tripping Time in Seconds (S) 0,00,00 0,00 00,00 x reaker Rating (In) Optional on GT-S GT-N.9

17 ntelliguard G Short-circuit Protection temporary reduced I (RLT) lectronic Trip Units Temporary reduced setting of Instantaneous Short-circuit evice (RLT) When a Short-circuit event takes place, large amount of electrical energy is released that can be hazardous to users in the direct vicinity of such an occurrence. In order to limit the current levels during such events and to reduce their time span, the ntelliguard G lectronic Trip Unit can be equipped with a temporary Reduced Instantaneous evice. The RLT device can be turned ON by accessing input one of the trip unit (). When the device is switched ON Relay output one () changes position and reverts to it s standard position when RLT is O. The RLT device can be adjusted from,5 to 5 (±0%) times the hosen Primary urrent Value (Ie) in steps of 0,5 (pick up setting). The device will trip the breaker within 50 Milliseconds. UP MTR TUS VNTS RKR RTING 000 RLT PIKUP x le RLT - Protection evice The graph indicates the Maximum interruption time and non tripping time across the full current setting band and the transition to the HSIO protection device (see page.). Information on how to set this device can be found in I standard , () See section on electronic inputs and Relay ouputs on page.7 0,0 Tripping Time in Seconds (S) 0,00,00 0,00 00,00 x reaker Rating (In) Standard on GT-N.0

18 ntelliguard G Setting limitations of Short-circuit devices Short-circuit Protection: HSIO, MR Setting Limitations of Short-circuit devices. To prevent damage to the ntelliguard G breaker due to currents that exceed its design parameters, the maximum setting values of the & I devices are in some cases limited to a lower level. These values are indicated in the adjacent table. HSIO Protection device To prevent very high level Short-circuit currents causing damage to their electrical installation and their components ntelliguard G Power ircuit reaker are equipped with a HSIO protection device. This high-level Short-circuit device is installed in all ntelliguard G reakers and is designed to trip the breaker at the specified Icw value of the device (). The device interrupts and thus limits the duration of these high level Short-circuits to 40 Milliseconds. The HSIO device is normally set at a value that is slightly higher than the specified second Icw of the breaker in which it is installed. This to warranty selectivity at the specified second level taking system tolerances into account (). reaker Rating In Primary setting current Ie reaker Icw rating 50k 65k 85k 00k Maximum setting (x Ir) x 0x x 0x Maximum I or xt. I setting (x Ie) () x 0x 0x 0x x 0x 0x x 5x 0x x 0x 4x x 9x x 5x reaker type is not available Overview of installed HSIO devices in utomatic types: nvelope nvelope nvelope GG04S to GG0S GG04N to GG0N GG04H to GG0H GG5N to GG40N GHN & GH40N GG04 to GG0 GG5H to GG40H GHH & GH40H GHM & GH40M GGG to GG40G GG40M to GG64M GG40L to GG64L Set value (rms) Short-circuit Protection Making urrent (MR) Protection device If a breaker is closed onto a Short-circuit current it is mandatory that the device interrupts before the electrical installation and its components incur any damage. n MR device is present in all ntelliguard G Power ircuit reakers () specifically designed to trip the breaker when closing onto a fault. Overview of installed MR devices in utomatic types: nvelope nvelope nvelope GG04S to GG0S GG04N to GG0N GG04H to GG0H GG5N to GG40N GHN & GH40N GG04 to GG0 GG5H to GG40H GHH & GH40H GHM & GH40M GGG to GG40G GG40M to GG64M GG40L to GG64L Set value (rms) Overview of installed MR devices in Non utomatic types: Set value (rms) () If the Short Time evice () is turned O the highest instantaneous or extended instantaneous setting is reduced to 5 x Ie for all types 4000 and to 0 x Ie for the 5000 and 6400 types () If the breaker is not equipped with an Instantaneous protection device (I or Hi) or in cases where device is set to off the HSIO device current threshold is automatically reduced by 0% () Only included in selected NON utomatic types nvelope nvelope nvelope GW04N to GW0N GW04M to GW40M GZH & GZ40H GJ40L to GJ64L

19 ntelliguard G Ground fault Protection: G and G (Residual Type) lectronic Trip Units Ground ault (G) Protection To protect an installation or a part thereof against indirect contact, Protection evices can be used to automatically disconnect the power supply when a fault to earth is detected. The H84 installation standard requires that the mentioned device senses the fault and then interrupts the supply within a specified time frame. Short-circuit device as an ntelliguard G Power ircuit reaker can be used to meet this requirement. However these Short-circuit Protection devices are normally set at values that are too high to detect normally occurring faults to arth. The optionally available Ground ault protection feature is specifically designed to detect lower currents than a standard Short-circuit evice and operate by residually summing the current in the Phases and Neutral. When a fault to arth creates an unbalance in the system the resulting ault urrent is detected by the device that produces an alarm signal or trips the associated ircuit breaker thus disconnecting the circuit. The ntelliguard G Ground fault device has an adjustment range of 0, to () (+-5%) times the chosen breaker rating (In) and can be set in steps of 0,0 (pick up setting). To allow selectivity with other downstream Protection evices there are 4 different time band settings available. The graph indicates a number of the available 4 time bands across the full adjustment range. The table contains the minimum delay time and the maximum total interruption times for all time band settings. The Ground fault device must monitor the current in all Phases and the Neutral. When a pole device is used in a 4 wire (phase + Neutral) system a 4th sensor must be placed in the Neutral (). On use of a 4 pole ntelliguard G breaker the sensor is already present in the Neutral pole. UP MTR TUS VNTS 0 0, 0, 0,0 0,0 RKR RTING 000,00 G- Protection evice I t slope -O- - G and G SUM PIKUP 0, x T N Slope O 0,00 ] Ground ault tripping times at indicated levels per selected G band -I t slope O, in Milliseconds 0, x ±0% x ±0% x Ir Tripping Non Tripping Tripping Non Tripping () When an auxiliary supply is connected (4V ) an extra setting range of 0, to 0, becomes available () Use a Rogowksi coil of the appropriate rating.

20 ntelliguard G Ground fault Protection: G and I t slope 0 0, 0, - Time G- G- Protection evice I t 'low' -ON- I t 'low' -ON- - G ands - G ands Ground ault Protection I T ands (slope) The G device can also be set to a slope value. The available multiple I t slopes are normally used to achieve selectivity with downstream fuses or to improve selectivity with downstream circuit breakers. The user has the possibility to choose a current adjustment of 0, to () times the chosen breaker rating (In) in steps of 0,0 (pick up setting) and one of 4 time bands. The three graphs depict the available I t slopes (Set at positon Low, Med. or High) and their intersection with several of the available 4 time bands across the full adjustment range. Ground/ault Protection 0,0 0,0,00 0, Time G- G- Protection evice I t 'med' -ON- I t 'med' -ON- - G ands - G ands ] 0 G SUM PIKUP 0, x T N Slope Med. - Time G- G- Protection evice I 4 t max -ON- I 4 t max -ON- - G ands - G ands 0, 0, 0, 0, 0,0 0,0,00 0,00 0,0 0,0,00 0,00 ] ] Optional on GT- GT-S GT-N () When an auxiliary supply is connected (4V ) an extra setting range of 0, to 0, becomes available.

21 ntelliguard G Ground ault Protection Ground Return Method, Source Ground Return Method Restricted arth ault pplications (R) lectronic Trip Units Ground ault Protection (G) Source Ground Return method Optionally the ntelliguard G lectronic Trip unit can be used with an alternative groundfault protection scheme in which the Neutral to arth urrent is measured by an arthleakage Leg Sensor placed in the Neutral and arth link of the system. This option requires the use of an auxiliary supply of 4V and the lectronic Trip Unit needs to be set to the option T input. n arth leg needs to be placed in the near vicinity of the break () and an interposing T needs to be mounted in breaker. When the sensor detects a fault current the ntelliguard G trip trips the associated ircuit breaker thus disconnecting the circuit or optionally, produces an alarm signal. UP MTR TUS VNTS 4 Wire system polig RKR RTING Wire system 4 polig G T PIKUP 0, x T N Slope Med. The ntelliguard G device has an adjustment range of 0, to () (+-5%) times the chosen breaker rating (In) and can be set in steps of 0,0 (pick up setting). To allow selectivity with other downstream Protection evices there are 4 different time band settings available and three I T slope settings (Same setting data and curves apply as on the standard G residual (sum) protection). = T = T Optional on ual Groundfault Protection (Residual or Sum & Source Ground Return or T) The ntelliguard G lectronic Trip Unit allows the user to combine the functionality of both the G sum and G T systems thus creating a sophisticated ual Ground ault protection system. ased on the chosen breaker configuration and the network configuration in which the device is used devices as indicated in the adjacent table are required. n interposing current transformer (T) is required. When a dual function ground fault is ordered off works, this device is supplied as a part of the factory mounted assembly. If a type trip unit with a dual groundfault function is ordered as a separate item the device is included in the trip unit packaging. wire ( phase) Network 4 wire ( phase + Neutral) ntelliguard G nr. of Poles G T PIKUP 0, x T N Slope O G Residual (SUM) G Source Return (T) 4th T Int. T 4th Rg 4th T Int. T G SUM PIKUP 0, x T N Slope Med. G sum PLUS G T 4th T Int. T 4th T Int. T 4th Rg 4 4th T 4th T Int. T Int. T Optional on () Limited to 0 metres () When an auxiliary supply is connected (4V ) an extra setting range of 0, to 0, becomes available.4

22 Zone Selective Interlock, Load Shedding and Trip Indication ntelliguard G Zone Selective Interlock Load Shedding unction Trip Reason Indicators (vent Logging) & Trip Operation counter (ata acquisition package) UP MTR TUS ZON SL/ INT. TLK VNTS O ZSI PIKUP x lr N Slope O UP MTR TUS larm ON VNTS PIKUP 0,55 x ln Zone selective Interlock (ZSI) This optional device has been specifically designed to combine Speed and Selectivity. It requires one or two simple core wire to connect the ZSI in and output between two or more lectronic Trip Units (). If a breaker detects a fault it will send a signal to the upstream breaker to move its present time setting to another predefined higher level. If the Short-circuit protection G ZSI PIKUP 0, x T N Slope Med. device has NO time setting band (Instantaneous), it simply gets a signal to wait another 5 half cycles before tripping. The breaker that originally detects the faults only trips after transmitting the indicated signals. Load shedding alarm output The load shedding device has been designed to allow the user to switch off NON priority loads before the LT functions trips the breaker due to an overload. It can also be used to verify the current consumption in the circuit which the ntelliguard G breaker protects. This to verify that the current running in the circuit does not exceed a certain pre-determined value. The device monitors the current in the circuit and provides an alarm signal if the load in one phase of the protected circuit exceeds a pre-defined value. The associated channel can be set ON or O and be adjusted in current values from 0.5 to x the breaker rating In) in steps of The ntelliguard G lectronic Trip Unit uniquely offers this function on the following protection devices: Time delayed Short-circuit Protection (..) Standard and Source Return Ground ault protection (G, G) Instantaneous (I i and I hi ) When a ZSI input is received the breaker changes its time band from the standard device setting to the ZSI setting. oth of these settings are user definable and can be set independently. Optional on GT-S GT-N ZSI input sent ZSI input sent ault occurs When the highest measured phase current exceeds the ON value set for longer than 60 seconds an output is provided to indicate that load shedding may prevent an overload tripping event. When the highest measured phase current drops below the O setting for longer than 60 seconds, the output is stopped (). This function is part of the data acquisition and relaying package available on the trip unit type. Ground ault Protection Optional on UP MTR TUS VNTS UP MTR TUS Trip Reason Indicators (event logging) Trip Operations counter The lectronic Trip Unit keeps track of data indicating why the associated breaker has tripped and on how may occurrences have taken place. ccessible under the VNTS menu the Trip Reason Indicator keeps track of a maximum of 0 events that have caused the ntelliguard G breaker to trip. The device stores the voltage, the phase s involved, the current value, the reason of the trip and the trip number (see counter). When an auxiliary voltage is connected, the time and date of the event are also stored. The Trip Reason Indicator registers events for the following devices. Overcurrent (LT,, I G) Relaying unctions (se Page ) Shunt or Undervoltage Release (If the associated contacts are connected via the trip unit) ccessible under the TUS menu the Trip Operations ounter registers a maximum of 55 overcurrent faults with their reason (LT,, I or G- ). The data can be viewed and reset through the TUS menu Pickup Status option. VNTS Optional on GT- GT-S GT-N () See schematics on page.4 () See section on Relay Outputs on page.7.5

23 ntelliguard G Measurement unctions and Power Supplies lectronic Trip Units UP MTR Standard on UP MTR TUS VNTS mmeter n mmeter is supplied with each ntelliguard G lectronic Trip Unit. The current in each of the three phases and the Neutral can be viewed. TUS Voltage RL POWR PH/L VNTS L-N urrent 700kW L-N PH/L PPR POWR PH/L L-N PH/L PH/L PH/L 750kV 0 00 PH/L PH/L 480kV 0 PH/L 0kV ull Measurement Package GT-N & type lectronic Trip Units have an advanced measurement facility that provides the user with a comprehensive overview of all relevant electrical parameters and their values. The adjacent table indicates the available parameters, the units used and their accuracy. When the option for display (Meter) is opened, a calculation is initiated that calculates each value based on a one second time frame. The device also calculates the sum of the used power in kwh, KVh and KVrh as a total for all phases. These values are kept and re-calculated every second. The lectronic Trip Unit has an option to allow these summations to be reset. ased on the same one second calculation method, a Power demand value is determined for Real (KW), pparent (KV) and Reactive (KVR) power. If the Power supply has a neutral the values are calculated per phase and as a total of all three phases. The device has an accuracy of % when viewed at the nominal current of the breaker and an accuracy of 5% when viewed when the breaker is running at 50-85% of its full load. Parameter Measured Units Resolution ccuracy at 00% of breaker rating urrent L, L, L, N 0000 % GT- GT-S GT-N Peak Power emand calculation is available for Real Power(KW) only. Here the data is stored and when necessary renewed at a user definable pre-set time interval. When the new Peak emand value exceeds the previous stored value the new value replaces the old in Memory. The lectronic Trip Unit has an option to reset this value. Parameter Measured Units Resolution ccuracy at 00% of breaker rating urrent L, L, L, N 0000 % Voltage L, L, L V 0000 % Power actor L, L, L % 00 4% requency L, L, L, N Hz 00 cycle pparent Power L, L, L kv 000,000 4% Real Power L, L, L kw 000,000 4% Reactive Power L, L, L KVr 000,000 4% L, L, L kv 000,000 4% verage Power L, L, L kw 000,000 4% demand L, L, L KVr 000,000 4% nergy L, L, L KWh 000,000 4% Peak Power emand L, L, L KW 000,000 4% Standard on GT-N Power onditioners and uxiliary Power Supply To use the above mentioned comprehensive measurement facilities, it is necessary to track the phase and Neutral network voltages and to input these values into the lectronic Trip Unit. or this purpose the ntelliguard G line includes a number of Power onditioners that transform and condition a standard network power supply to a signal that the trip unit can safely use and read. When optioning the measurement facility for the st time, the lectronic Trip Unit will require the user to set the primary voltage values. number of advanced Trip Unit options require an auxiliary supply of 4V. unit that transforms and conditions a standard network power supply to 4V is available for this purpose. The auxiliary supply also improves the speed of the trip unit setup function at low circuit loads (<0%) and when no standard power supply is present. separately available Test ox Kit can also be used as a temporary power supply. This device has a battery pack and includes a 4 V auxiliary power supply. ccessory for GT-S GT-N.6

24 ntelliguard G Protective Relaying unctions; Relay and Trip Unit Inputs Wave orm apture Option UP MTR TUS VNTS Protective Relay djustability Steps ccuracy Trips reaker Overvoltage 0% -5% of line voltage % % Overvoltage elay to 5 seconds sec ± 0, sec. Undervoltage 0% - 85% of line voltage % % Undervoltage elay to 5 seconds sec ± 0, sec. Voltage Unbalance 0% -50% difference between highest & lowest phase when compared to average % % Voltage Unbal. elay to 5 seconds sec ± 0, sec. Power irection Reversal Line- to-load OR Load to Line Power Reversal setting rom 0 to 990kW 0kW % urrent Unbalance 0% -50% difference between highest & lowest phase when compared to average % % urrent Unbal. elay to 5 seconds sec ± 0, sec. Standard on Protective Relaying unctions The lectronic trip unit has five protective relay functions. These can be switched ON or O and when active produce an alarm signal that is added to the vent Log and transmitted through the communication bus. ach relay function can be configured to trip the breaker or/and to send an alarm signal via a Relay Output ON or O ON or O ON or O ON or O ON or O dvanced eatures UP MTR TUS VNTS Relay Outputs There are two programmable relay outputs available rated at 4V or. The first is dedicated to the Reduced Instantaneous evice whilst the second can be assigned to single functions, a group of functions or to the protective relays functions mentioned above. ccessible under the UP the output is wired out through the secondary terminals of the breaker as indicated on page.7. The following settings are possible. unction Group G larm ssigned to group Over-current trip (G, IN, LT, ) ssigned to group Protective Relays ssigned to group urrent larm ssigned to group 4 urrent larm ssigned to group 5 Health status output number ssigned to group 6 Standard on GT-N UP MTR TUS VNTS lectronic Trip unit INPUTS There is a total of programmable inputs available. The first is dedicated to switch the Reduced Instantaneous ON. The second can be used to trip the breaker. The inputs are suitable for voltages up to 4V or 0V. ccessible under the UP the outputs are wired out through the secondary terminals of the breaker as indicated on page.7. Standard on GT-N UP MTR TUS VNTS Wave orm apture option When a fault has taken place, it can be of importance to visualize the event. The Wave form apture option included in the type lectronic Trip Unit can track and visualize any fault event. The device tracks 8 cycles, 4 before and 4 after the event with resolution of 48 samples per cycle at 50Hz and stores the results in memory. It registers events in all three phases and the Neutral. fter the event, the waveform event is stored and can be accessed by using the waveform client module of the nervitsa software. When the upload into this software is complete, the Trip Unit will reset this function and be available to register the next event. Standard on.7