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6LE007331A

Sentinel electronic trip unit

2.1 Description

hw+ Air Circuit Breakers are equipped with a Sentinel electronic trip unit on the front to protect
against overloads and short circuits.
It has a display and adjustment dials enabling the user to configure the protection settings and
monitor its normal operation.

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Summary of Contents for hw+

Page 1: ...User manual hw Air circuit breaker up to 1600 A RESET AUTO MANUAL In 16 0 0 A 5 8 COM...

Page 2: ...37 4 6 Neutral N protection setting 39 4 7 Reviewing the settings 41 05 Circuit breaker operation 44 5 1 Description 44 5 2 Circuit breaker closing 47 5 3 Circuit breaker opening 49 5 4 Locking the op...

Page 3: ...ning the circuit breaker 84 11 Alarm management 85 11 1Overload pre alarm 85 11 2Overload alarm 87 11 3Trip alarm 88 11 4System alarm 89 12 Closing the circuit breaker after a trip operation 94 13 Mai...

Page 4: ...ording to the risk level DANGER DANGER indicates an imminent dangerous situation which if not avoided will result in death or serious injuries ATTENTION ATTENTION indicates a warning message relating...

Page 5: ...ical documentation relating to them If products and components from other manufacturers are used they must be recommended or approved by Hager Appropriate use of Hager products during transport storag...

Page 6: ...s document applies to hw circuit breakers with electronic trip units Revisions Version Date 6LE007331A April 2021 Documents to consult Document Reference hw installation manual 6LE007893A hw maintenan...

Page 7: ...w Air Circuit Breakers are equipped with a Sentinel electronic trip unit on the front to protect against overloads and short circuits It has a display and adjustment dials enabling the user to configu...

Page 8: ...s self powered when the circuit breaker is in service except when if the circuit breaker is open or de energised after tripping if the withdrawable circuit breaker is in test or disconnected position...

Page 9: ...needs changing or is not connected 6 Tripindicator together with the digital display zone the text display zone and the phase display enables the cause of the tripping to be precisely determined 7 Ov...

Page 10: ...the button displays a 1st screen showing the highest current of the 3 phases flowing through the circuit breaker 1 2 3 1 Current flowing through the circuit breaker in of Ir 2 Value in ampere of the c...

Page 11: ...and also if the fault current is limited due to the impedance of the conductor lengths Settings adjustment dials are accessible on the fronts of products and allow an accurate adjustment of the protec...

Page 12: ...tion settings is required Settings adjustment dials are accessible on the fronts of products and allow an accurate adjustment of the protection settings and a tripping curve that is independent of the...

Page 13: ...f a TN S neutral system The settings by means of adjustment dials are accessible from the front of the products and allow precise adjustment of the protection and a tripping curve independent of the a...

Page 14: ...t Time Delay protection threshold tsd Short Time Delay I t ON OFF I t curve on Short Time Delay protection activated or not I Ii Instantaneous protection threshold G Ig Ground protection threshold tg...

Page 15: ...tr s Long Time Delay Adjusting the lr current setting The Long Time Delay protection Pick Up range is 1 05 1 20 Ir The Ir current setting is adjusted using the 2 adjustment dials Ir1 and Ir2 Rating I...

Page 16: ...el the heating of the conductors In the absence of current the Sentinel electronic trip units model the cooling of the conductors a 100 I b 1 t 2 Trip units with and without thermal imaging Key a Trip...

Page 17: ...lsd adjustment dial Isd pick up adjustment range x Ir OFF 1 0 1 5 2 0 2 5 3 0 4 0 6 0 8 0 10 0 When the Isd setting is OFF the short time delay protection is deactivated The lsd pick up tolerance for...

Page 18: ...the short time delay This I t function makes it possible to improve selectivity with downstream devices It is activated from the Isd pick up and functions up to 10xIr I A t s 10xlr tsd l t lr lsd Sho...

Page 19: ...tion threshold Adjusting the Ii pick up setting The Ii pick up is adjusted using the li adjustment dial li pick up adjustment range x In OFF 1 5 2 0 3 0 4 0 6 0 8 0 10 0 12 0 15 0 The li pick up toler...

Page 20: ...is adjusted using the tg adjustment dial tg time delay adjustment range s 0 05 0 10 0 20 0 40 0 60 Non tripping time s 0 025 0 075 0 175 0 375 0 575 Maximum tripping time s 0 1 0 15 0 25 0 45 0 65 Max...

Page 21: ...e of the Ir and Isd thresholds for the phases For a setting at 200 the maximum value of the neutral protection cannot exceed the maximum rating of the circuit breaker E g for a 1600 A circuit breaker...

Page 22: ...tg time delay Under no circumstances can it replace it It is applicable to short time delay protection and ground fault protection Here are two examples to explain the functioning Q1 Q2 Q3 Q4 a b STD2...

Page 23: ...lay protection ZSI ON OFF OFF by default Ground fault protection ZSI ON OFF OFF by default N B It is important to ensure that ZSI protection on a hw circuit breaker is kept deactivated when not using...

Page 24: ...6LE007331A In 16 0 0 A RESET AUTO MANUAL In 16 0 0 A RESET AUTO MANUAL Withdrawable hw circuit breaker Fixed hw circuit breaker The types of protection device 3 7 Zone Selective Interlocking function...

Page 25: ...that the circuit breaker is not energised and displays the following information 2 If this is not the case open the circuit breaker by pressing the push button 3 Open the transparent cover protecting...

Page 26: ...p unit backup battery must be connected To do so insert a flat screwdriver into the slot 3 5 Then open the hatch and confirm that the battery is connected If the battery is missing refer to the hw mai...

Page 27: ...external Hager HTG911H 24 V DC power supply must be connected to the TU 24 V terminals of the input and output terminal block or an external USB battery must be connected to the electronic trip unit T...

Page 28: ...inciple Action Illustration 11 Now with each movement of the encoder dial the corresponding setting is visible on the display 1 Parameter adjusted 2 Parameter unit in amps A for currents in seconds S...

Page 29: ...e Action Illustration 12 If no action is performed for 30 seconds the display returns to its standby screen 13 Once all the settings have been adjusted disconnect the external battery 14 Close the USB...

Page 30: ...30 6LE007331A Protection settings 4 1 Principle Action Illustration 16 Apply a seal to the window if necessary...

Page 31: ...g a computer equipped with the Hager Power Setup commissioning software it is possible to achieve protection settings according to the values recorded in the hagercad project The computer must be conn...

Page 32: ...tion settings 4 2 Long time delay LTD protection setting WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The t...

Page 33: ...LTD protection setting WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip unit must be adjusted accordin...

Page 34: ...ion settings 4 3 Short time delay STD protection setting WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The t...

Page 35: ...e delay STD protection setting WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip unit must be adjusted...

Page 36: ...ettings 4 4 Instantaneous INST protection setting WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip uni...

Page 37: ...ttings 4 5 Setting the ground fault GF protection WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip uni...

Page 38: ...he ground fault GF protection WARNING Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip unit must be adjusted a...

Page 39: ...Illustration 1 Open the backup battery housing hatch see Chapter 4 1 Principle 3 2 Adjust the desired setting then close the hatch See the diagram on the next page Protection settings 4 6 Neutral N p...

Page 40: ...G Risk of unexpected operation This example is given for information only to show the behaviour of the display and protection curve The trip unit must be adjusted according to the results of the netwo...

Page 41: ...s to the 1st screen displaying the maximum current flowing through the circuit breaker and the phase in question 3 At this level each brief press on the button moves the display from one screen to the...

Page 42: ...ick up Long Time Delay Instantaneous protection pick up Long Time Delay Short Time Delay protection pick up Neutral protection threshold Short Time Delay Ground Fault time delay Protection settings 4...

Page 43: ...able and the position of the screen in the order they are displayed in 1 Navigation aid 2 Trip unit Number of screens LI 5 6 in case of error LSI 7 8 in case of error LSIG 9 10 in case of error 1 2 5...

Page 44: ...it breaker Opening and closing indicator Spring status indicator Circuit breaker status Circuit breaker open Spring discharged Air circuit breaker Spring charged but not ready to close The circuit bre...

Page 45: ...o has two operating modes which can be adjusted using the switch on the right of the button Auto mode in which it is not necessary to press the RESET button before closing the circuit breaker after tr...

Page 46: ...r It must be first charged for which there are two procedures Manual charging Charge the spring using the spring charging handle until the status of the indicator changes Automatic charging The spring...

Page 47: ...ged 2 Charge the spring using the handle until the following indicators appear DANGER Risk of electric shock explosion or electric arc Inspect the electrical installation and remove the cause of the t...

Page 48: ...by screen lights up on the display and the ReadyToProtect indicator flashes indicating that the trip unit is operational 1 ReadyToProtect indicator 1 ATTENTION The circuit breaker must be energised an...

Page 49: ...rcuit breaker opening To open an hw circuit breaker Action Illustration 1 The circuit breaker is in closed status with the spring discharged or charged 2 Open the circuit breaker by pressing the openi...

Page 50: ...breaker opening Action Illustration 4 The display switches off If an external Hager HTG911H 24 V DC Hager power supply is connected to the TU 24 V terminals of the inputs and outputs the ReadyToProtec...

Page 51: ...preventing any closing operation of the circuit breaker It prevents any unintentional or unauthorised operations The push buttons can be locked independently or jointly and up to 3 5 8 mm padlocks can...

Page 52: ...ush button and closing push button locked 2 Lock it using one or more padlocks ATTENTION It is not possible to hold the closing push button in pressed condition with this accessory ATTENTION Refer to...

Page 53: ...5 8 mm padlocks can be installed Action Illustration 1 Press the opening push button and hold it pressed while pulling the tab of the locking device 2 Release the opening push button Position To activ...

Page 54: ...t it is no longer possible to close the circuit breaker by pressing the closing push button 4 To unlock the device remove the padlock 5 The tab returns to its initial position Circuit breaker operatio...

Page 55: ...t is now possible to close the circuit breaker by pressing the closing push button ATTENTION Refer to manual 6LE007488A to install this locking accessory Circuit breaker operation 5 5 Locking the circ...

Page 56: ...button inactive Several types of locks can be installed Ronis type lock Profalux type lock not included Action Illustration 1 The key is horizontal to start with To activate or deactivate the locking...

Page 57: ...ton 3 Hold the opening push button in pressed condition and turn the key anti clockwise to the vertical position 4 Remove the key 5 Then release the opening push button Circuit breaker operation 5 6 L...

Page 58: ...n 6 Check that it is no longer possible to close the circuit breaker by pressing the closing push button 7 To unlock the device insert the key into the lock 8 Turn the key clockwise Circuit breaker op...

Page 59: ...e to close the circuit breaker by pressing the closing push button ATTENTION The key cannot be removed in horizontal position To remove it follow steps 1 to 4 ATTENTION Refer to manual 6LE007488A to i...

Page 60: ...e racking handle from being inserted Up to three 5 8 mm padlocks can be installed Action Illustration 1 Pull the padlocking and position acknowledgement tab To activate or deactivate the locking devic...

Page 61: ...ion Illustration 2 Position then close the padlock 3 Check that it is not possible to insert the racking handle into the opening Circuit breaker operation 5 7 Locking the circuit breaker in the chassi...

Page 62: ...e the padlock 5 The padlocking and position acknowledgement tab returns to its initial position 6 Check that it is now possible to insert the racking handle into the opening Circuit breaker operation...

Page 63: ...and prevents the racking handle from being inserted Several types of locks can be installed Up to 2 locks can be installed in the housing Circuit breaker operation 5 8 Locking the circuit breaker in...

Page 64: ...cal position in the lock 2 Check that it is not possible to insert the racking handle into the opening ATTENTION If 2 locks are fitted a single key in vertical position prevents the handle from being...

Page 65: ...e key anti clockwise 5 Check that it is now possible to insert the racking handle into the opening ATTENTION If 2 locks are fitted the 2 keys must be horizontal position to enable the handle to be ins...

Page 66: ...nnot be removed in horizontal position To remove it turn until it is vertical ATTENTION For the installation of this accessory refer to the manual 6LE007677A Circuit breaker operation 5 8 Locking the...

Page 67: ...le being inserted into the circuit breaker rack in rack out mechanism when the door of the electrical cabinet is open Action Illustration 1 Open the electrical cabinet door To test the locking device...

Page 68: ...insert the handle into the opening 3 Close the electrical cabinet door 4 Check that it is now possible to insert the handle into the opening ATTENTION Refer to manual 6LE007491A to install this locki...

Page 69: ...d by locking systems Before changing from one position to another the padlocking and position acknowledgement tab must be pressed In 16 0 0 A RESET AUTO MANUAL 1 Padlocking and position acknowledgemen...

Page 70: ...r risk of serious injury Make sure that the device is only operated by qualified personnel according to the installation standards in force in the country To change from connected position to test pos...

Page 71: ...of the withdrawable circuit breaker in the chassis 7 1 Changing from connected position to test position Action Illustration 4 Insert the racking handle into the hole 5 Press the padlocking and posit...

Page 72: ...r in the chassis 7 1 Changing from connected position to test position Action Illustration 6 Turn the racking handle anti clockwise until the status indicator is displayed TEST and the padlocking and...

Page 73: ...test position to disconnected position Action Illustration 1 The circuit breaker is in the test position and the status indicator displays TEST 2 Press the padlocking and position acknowledgement tab...

Page 74: ...7 2 Changing from test position to disconnected position Action Illustration 3 until the status indicator is displayed and the padlocking and position acknowledgement tab comes out of its housing Clac...

Page 75: ...hock or risk of serious injury Make sure that the device is only operated by qualified personnel according to the installation standards in force in the country To change from disconnected position to...

Page 76: ...ng from disconnected position to test position Action Illustration 4 Press the padlocking and position acknowledgement tab 5 Turn the racking handle clockwise until the status indicator is displayed T...

Page 77: ...from test position to connected position To change from test position to connected position Action Illustration 1 The circuit breaker is in the test position and the status indicator displays TEST 2 P...

Page 78: ...4 Changing from test position to the connected position Action Illustration 3 until the status indicator is displayed and the padlocking and position acknowledgement tab comes out of its housing Clac...

Page 79: ...aker falling Risk of injury by crushing Ensure the device is only handled by qualified personnel equipped with lifting equipment and suitable safety equipment Action Illustration 1 Ensure that the cir...

Page 80: ...80 6LE007331A Extracting the withdrawable circuit breaker Action Illustration 3 Slide the circuit breaker from its housing on its guide rails 4 The circuit breaker can be extracted from the chassis...

Page 81: ...ched before starting to insert the circuit breaker CAUTION Risk of the circuit breaker falling Risk of injury by crushing Ensure the device is only handled by qualified personnel equipped with lifting...

Page 82: ...circuit breaker Action Illustration 3 Using suitable lifting equipment position the circuit breaker on the guide rails 4 Remove the lifting equipment 5 Push the circuit breaker to the back of the cha...

Page 83: ...83 6LE007331A Inserting the withdrawable circuit breaker Action Illustration 6 Push the guide rails to the back of the chassis...

Page 84: ...ry due to electric shock or risk of serious injury Ensure that the device is only commissioned by qualified personnel who are equipped with adequate safety equipment ATTENTION For any further informat...

Page 85: ...PTA threshold equivalent to 90 Ir The PTA time delay equivalent to 50 tr It is activated for a load current when the intensity and duration falls in a pre trip warning zone Overload pre alarm zones Th...

Page 86: ...at the rear of the electronic trip unit the overload pre alarm is linked to the PTA output contact on the hw circuit breaker terminal blocks See Installation manual 6LE007893A 1 Percentage of the Ir...

Page 87: ...icator 4 Phase in which the maximum current has been reached The overload alarm is activated as soon as the current 105 of the Ir value In the event of an overload alarm a screen of this type is displ...

Page 88: ...tion STD Short time delay protection INST MCR Instantaneous protection GF Ground fault protection 2 Trip indicator 3 Fault current value only long time delay short time delay instantaneous and ground...

Page 89: ...ctive action High criticality level anomaly which may cause serious malfunctioning of the protection functions and requires urgent corrective action It should be noted that for the low or medium criti...

Page 90: ...rip unit internal error E027 Medium Processor internal power supply error E028 Medium Internal cycle counter error E029 Medium ENCT external neutral current sensor error E040 Low Zone Selective Interl...

Page 91: ...further information about the meanings of the Hardware tripping system alarms please refer to the Maintenance manual 6LE007897A Thanks to the OAC output alarm contact available as an accessory and in...

Page 92: ...he circuit breaker to trip see screen on previous page or only an alarm with a flashing screen of this type By default all the Hardware tripping system alarms cause the circuit breaker to trip To chan...

Page 93: ...ystem alarms cause the circuit breaker to trip OFF display the Hardware tripping system alarms are only indicated by one alarm 3 To validate your choice press for more than 3 s on the button The On or...

Page 94: ...em alarms DANGER Risk of electric shock explosion or electric arc Inspect the electrical installation and remove the cause of the tripping before closing the circuit breaker again Never close a circui...

Page 95: ...2 If the circuit breaker reset is configured to MANUAL move on to step 3 RESET AUTO MANUAL If the circuit breaker reset type is set to AUTO go directly to step 5 RESET AUTO MANUAL 3 The indicators ar...

Page 96: ...the circuit breaker after a trip operation Action Illustration 4 Press the circuit breaker RESET button 5 The spring is charged and now ready to close 6 Then reset the electronic trip unit display Pre...

Page 97: ...e circuit breaker after a trip operation Action Illustration 7 The electronic trip unit display stops flashing and becomes steady 8 Press the button for more than 3 s 9 The fault is acknowledged and t...

Page 98: ...dicator flashes indicating that the trip unit is operational ATTENTION In order to guarantee the correct operation of the electronic trip unit the circuit breaker must be energised and a minimum curre...

Page 99: ...maintenance indicator is displayed maintenance operations are required on the circuit breaker 1 1 Maintenance indicator ATTENTION If the maintenance indicator appears contact the Hager Technical Suppo...

Page 100: ...ery indicator Action Illustration 1 If necessary remove the seal to open the transparent cover protecting access to the trip unit ATTENTION If the backup battery is discharged the electronic trip unit...

Page 101: ...6LE007331A Replacing the backup battery Action Illustration 2 Insert a screwdriver into the slot 3 3 Then open the hatch 4 To safeguard the electronic trip unit s internal data remove the USB C port c...

Page 102: ...102 6LE007331A Replacing the backup battery Action Illustration 5 Connect an external battery to the USB C port 6 Remove the used battery...

Page 103: ...the safety of people and property Dispose of the used battery at a recycling facility Caution Danger of burns and chemical risks when changing the battery Do not handle the battery without protection...

Page 104: ...104 6LE007331A Replacing the backup battery Action Illustration 8 Remove the external battery 9 Close the USB C port cover 10 Close the hatch...

Page 105: ...7331A Replacing the backup battery Action Illustration 11 Close the transparent window 12 Apply a seal to the window if necessary 13 Briefly press the button to acknowledge the low or missing battery...

Page 106: ...ackup battery Action Illustration 14 The standby screen lights up on the display The low or missing battery indicator has disappeared and the ReadyToProtect indicator flashes indicating that the elect...

Page 107: ...W1xx08 800 A 400 A HWW464H 630 A HWW465H HW1xx10 1000 A 400 A HWW464H 630 A HWW465H 800 A HWW466H HW1xx12 1250 A 400 A HWW464H 630 A HWW465H 800 A HWW466H 1000 A HWW467H HW1xx16 1600 A 400 A HWW464H 6...

Page 108: ...value In of the trip unit Action Illustration 2 Open the circuit breaker by pressing the opening push button 3 The indicators update 4 The display switches off 5 Place the circuit breaker in the disco...

Page 109: ...s as far as possible while holding the upper part of the circuit breaker The circuit breaker remains in the chassis in the disconnected position Clac Clac 7 Slide the circuit breaker from its housing...

Page 110: ...f the trip unit Action Illustration 9 If necessary remove the seal from the transparent cover which protects access to the trip unit then unscrew the 4 screws PH1 10 Lower the spring charging handle 1...

Page 111: ...111 6LE007331A Changing the rated current value In of the trip unit Action Illustration 12 Insert a flat screwdriver into the tab then lever to unlock it 3 13 Remove the calibrator...

Page 112: ...ging the rated current value In of the trip unit Action Illustration 14 Position the lever of the new calibrator to the left 15 Clip the calibrator into its housing 16 Push the lever to the right to l...

Page 113: ...ort 19 The trip unit screen lights up indicating that the new rated current value has been correctly taken into account ATTENTION If the following screen is displayed the calibrator you have placed in...

Page 114: ...114 6LE007331A Changing the rated current value In of the trip unit Action Illustration 20 Remove the external battery 21 Close the USB C port cover 22 Lower the spring charging handle...

Page 115: ...115 6LE007331A Changing the rated current value In of the trip unit Action Illustration 23 Mount the cover 24 Fix the 4 screws PH1 25 Ensure that the chassis is in the disconnected position...

Page 116: ...the rated current value In of the trip unit Action Illustration 26 Pull the guide rails as far as possible 27 Using suitable lifting equipment position the circuit breaker on the guide rails 28 Remov...

Page 117: ...trip unit Action Illustration 29 Push the circuit breaker to the back of the chassis without pushing on the guide rails 30 Push the guide rails to the back of the chassis 31 Place the circuit breaker...

Page 118: ...ix a seal on the transparent cover protecting access to the trip unit WARNING Risk of unexpected operation Before closing the transparent window check the settings 33 Charge the spring using the handl...

Page 119: ...display and the ReadyToProtect indicator flashes indicating that the trip unit is operational 1 ReadyToProtect indicator 1 ATTENTION The circuit breaker must be on and a minimum current of 120 A must...

Page 120: ...6LE007331A Hager Electro SAS 132 Boulevard d Europe BP3 67210 OBERNAI CEDEX hager com 21 02 2022...

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