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Summary of Contents for ABB Emax DC L3447
- Page 1 Installation and service Installation, service and instructions maintenance instructions for low voltage air circuit-breakers Emax DC 1SDH000635R0002 L3728...
- Page 2 Dwg. Resp. Off. Title Language Installation, service and maintenance instructions for low voltage air Take over Off. App. circuit-breakers Model L3447 Scale Apparatus Emax DC L3728 Doc. no. ABB SACE 1SDH000635R0002...
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Page 3: Table Of Contents
Index SACE PR122/DC Release - Identification page 30 12.1 Standard ..............« 30 Description ............. page 12.2 Specifications ............« 30 General characteristics ..........« 12.2.1 General ..............« 30 External front view of the circuit-breaker ..... « 12.2.2 Auxiliary power supply ..........« 31 1.3.1 Three-pole circuit-breaker rating plate ...... - Page 4 Installation ..............« 61 12.8 Accessories ............... « 48 13.3.8.2 Uninstalling ..............« 61 12.8.1 ABB SACE PR010/T test and configuration unit ..« 48 13.4 User interface ............« 62 12.8.2 BT030/B communication unit ........« 48 13.4.1 Use of pushbuttons ........... « 62 12.8.3...
- Page 5 14.3 PR120/K - SIGNALLING module ....... page 81 14.3.1 General characteristics ..........« 81 14.3.2 Front view ..............« 81 14.3.3 Releases complete with the module ......« 81 14.3.4 Characteristics of the digital input ......« 81 14.3.5 Characteristics of the signalling contacts ....« 81 14.3.6 Power supply ............
- Page 6 L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 4/108...
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Page 7: Description
The moving part and fixed part are coupled by means of special clamps installed in the fixed part. For details about the plant application of SACE Emax DC circuit-breakers, consult the Technical Application Papers "ABB circuit-breakers for direct current applications" (1SDC007104G0201). -
Page 8: Fixed Part Construction Characteristics
Fixed part construction characteristics 1 Steel sheet supporting structure 2 Earthing contacts (a: for all versions; b: for E4, 3 Safety shutters (IP20 degree of protection) 4 Insulating terminal support base 5 Terminals 6 Contacts for signalling connected/test isolated/disconnected (on request) 7 Sliding contacts 8 Padlock for safety shutters (on request)) 9 Anti-racking-in lock for circuit-breakers of... -
Page 9: Installation
With regard to lifting, follow the instructions: the circuit-breakers must be placed on a sturdy supporting surface and lifted, preferably, by means of a special fork-lift truck. However, the use of ropes is allowed. In this case, the lifting ropes must be hooked up as shown in the figures (the lifting plates are always supplied with the circuit-breaker). -
Page 10: Installation Of The Fixed Part
Installation of the fixed part (Fig. 12) Attach the fixed part by means of the screws (1), washers (2) and nuts (3) (M8 x 16), supplied by ABB SACE. if other screws are used, make sure that the head of the screws does not extend more than 5.5 mm from the base of the fixed part. -
Page 11: Installation Of The Flange On The Compartment Door
Installation of the flange on the compartment door (Fig. 13) – Make the compartment door drillings specified in the "Overall dimensions" paragraph. - Attach the flange (1) on the front of the compartment door, fixing it from the inside by means of the self-tapping screws (2). Notes (*) For the E2-E3 fixed parts, there are four fixing points, whereas there... -
Page 12: Examples Of Positioning The Connection Busbars According To The Terminals
5.1.1 Examples of positioning the connection busbars according to the terminals The connection busbars enable the connection between the terminals of the circuit-breakers and the busbars of the switchgear. Their sizing must be carefully studied by the switchgear designer. Some examples of possible constructions are given in this paragraph. The various types of terminals are of constant dimensions for each size of circuit-breaker: it is normally advisable to exploit the whole contact surface of the terminal, so the width of the connection busbars should be the same as that of the terminal. -
Page 13: Assembly Procedure For The Connection Busbars
5.1.2 Assembly procedure for the connection busbars Check the state of the contact surfaces of the connections very carefully: they must be very clean with no burrs, dents or traces of rust which must be eliminated using a fine file or an emery cloth to prevent localized increases in temperature. On completion of the operation, remove all traces of grease or dust with a cloth soaked in a suitable solvent. -
Page 14: Withdrawable Circuit-Breaker
5.3.2 Withdrawable circuit-breaker For connection of the moving part to the auxiliary circuits, a connection with sliding contacts is available on the fixed part (see figure), identified by code X on the electrical circuit diagram. The terminals of the fixed connector are immediately accessible when the compartment door is open. Furthermore a terminal box identified by code XF is available for connecting the position contacts of the moving part in relation to the fixed part. -
Page 15: Conversion Of The Auxiliary Contacts Or Of The Signalling Contacts (Disconnected - Test Isolated - Connected) From Normally Closed (Opening) To Normally Open (Closing) Or Vice Versa
Conversion of the auxiliary contacts or of the signalling contacts (disconnected - test isolated - connected), from normally closed (opening) to normally open (closing) or vice versa The contacts are wired at the factory as shown on the electrical circuit diagram. If it is necessary to change their state for installation requirements, proceed as follows. -
Page 16: Putting Into Service
Putting into service General procedures – Check tightness of the power connections at the circuit-breaker terminals – Carry out all the preparatory operations on the release – Make sure that the value of the auxiliary circuit power supply voltage is between 85 and 110% of the rated voltage of the electrical applications –... -
Page 17: Instructions For Use
Instructions for use Operating and signalling parts 1 Pushbutton for the manual opening operation 2 Lever for manual loading of the closing springs 3 Mechanical indicator for circuit-breaker open “O” and closed “I” 4 Mechanical indicator for protection release tripped (on request) 5 Pushbutton for the manual closing operation 6 Signalling device for springs loaded - unloaded 7 Operation counter (on request) -
Page 18: Circuit-Breaker Closing And Opening Procedures
Circuit-breaker closing and opening procedures The operation of the circuit-breaker can be either manual or electrical. a) Manual loading of the closing springs – Make sure that the indicator (3) shows "O" (circuit-breaker open) – Make sure that the indicator (6) is WHITE (springs unloaded) –... -
Page 19: Racking-In/Out Operation
Racking-in/out operation WARNING A) Open the circuit-breaker before carrying out any racking-in/out operation. B) The circuit-breaker (moving part) and fixed part are fitted with a lock which prevents the fixed part from being racked into the circuit-breakers with a different rated current: the congruence of the anti-racking-in lock must be checked by the operator before carrying out the racking- in operation to avoid any unnecessary stress. -
Page 20: Maintenance
b) Passing from the DISCONNECTED to the TEST ISOLATED position Make sure that the indicator (9) is in the DISCONNECTED position. For the connection procedure, make sure that the key (12) is in the correct position and/or the padlock (14), if any, has been removed. Make sure that the circuit-breaker is open. -
Page 21: Maintenance Program
With regular maintenance, SACE Emax circuit-breakers, either with or without a geared motor, can withstand the following operation without replacement of parts. Rated uninterrupted Mechanical life (*) Electrical life current Iu (40 °C) No. of operations Frequency 500 V 750 V 1000 V Frequency x 1000... -
Page 22: General Inspection Of The Circuit-Breaker
– Put the rings back in place and tighten screws and nuts appropriately – Deformation or cracks of the insulating parts – Ask ABB SACE to replace the damaged parts – Insulating contacts oxidized (only for withdrawable – Remove the shutters and clean with a rough cloth... -
Page 23: Operating Mechanism Maintenance
Fig. 33a Fig. 33b Fig. 33c 8.3.4 Operating mechanism maintenance – Carry out the checks and take the action listed under item 1 of the table in paragraph 8.3.2. – Lubricate the bearings of the drive shaft with MU-EP1 (AGIP) grease, including those on the sides of the circuit-breaker. Equivalent greases: ESSO Beacon EP1 - BP LTX1 - SHELL AVANIA GREASE R1 - KLUBER LUBRIFICATION CENTO PLEX 2P –... -
Page 24: Measures To Be Taken For Any Operating Anomalies
Replace the coils • • • Operating mechanism blocked Operate by hand. If the fault persists contact ABB SACE • Key not inserted in the opening mechanism lock Insert and turn the key • Circuit-breaker in intermediate position between connected... -
Page 25: Accessories
10. Accessories 10.1 Electrical accessories Shunt opening/closing (YO/YC) and second shunt opening release (Y02) This allows remote opening or closing control of the apparatus. Given the characteristics of the circuit-breaker operating mechanism, opening (with the circuit-breaker closed) is always possible, whereas closing is only possible when the closing springs are loaded. Most of the releases can operate with either direct or alternating current. - Page 26 Time delay device for undervoltage release (D) The undervoltage release can be combined with an electronic time-delay device for installing outside the circuit-breaker, which enables a delay in the tripping of the release with preset, adjustable times. The use of the delayed undervoltage release is recommended when the power supply network of the release can be subject to power cuts or short-lived voltage drops, in order to avoid trips.
- Page 27 Mechanical and electrical trip signalling for overcurrent releases The following signals are available following tripping of the overcurrent release: a) Mechanical trip signalling for overcurrent releases This enables a visual signalling on the operating mechanism by pushing the trip pushbutton in when the circuit-breaker has been opened following tripping of an overcurrent release.
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Page 28: Mechanical Locks
– the auxiliary contacts. For the change over, the customer can use a suitable electronic relay, whose diagram is supplied by ABB SACE. The mechanical interlocks between two or three circuit-breakers are made by means of cables that can be used for circuit-breakers installed, either side-by-side or one over the other. -
Page 29: Spare Parts
– Transparent protection for PR122/DC and PR123/DC releases – SACE PR030/B power supply unit – Tool case – Front escutcheon plate for Ronis-type key lock For further details, ask for the ABB SACE spare parts catalogue. L3447 Model Scale Apparatus... - Page 30 11. Protection releases - General notes The Emax series of ABB air circuit-breakers now has a new range of electronic releases for DC applications called PR122/DC and PR123/DC. The new protection releases integrate all the functions of their predecessors, adding new and interesting technical features that are useful for satisfying every current and future system installation need.
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Page 31: Protection Releases - General Notes
Auxiliary power supply Notes A. Use the “Belden 3105A”- type two-wire cable for instance (not supplied by ABB SACE). B. Use the “Belden 3106A”- type three-wire cable for instance (not supplied by ABB SACE). C. The unit has a “backup-protection” function; if the first command to the opening solenoid does not open immediately the circuit-breaker (TC partially fault), TRIP commands are repeatedly sent until the circuit-breaker opens. -
Page 32: Sace Pr122/Dc Release - Identification
The PR122/DC is a high-performance protection unit with Protection, Measurement, Data storage, Communication (optional), Self-test, Load control and Zone selectivity functions for the ABB SACE 'Emax' range of 3- and 4-pole low-voltage air circuit-breakers. The unit's user interface also enables parameter setup and complete the prealarm and alarm management for the protection and watchdog functions. -
Page 33: Auxiliary Power Supply
12.2.2 Auxiliary power supply The external auxiliary power supply is provided using a galvanically-separated power pack. Since the auxiliary voltage needs to be isolated from the ground, "galvanically separated converters" in accordance with the IEC standard 60950 (UL 1950) or the equivalent IEC 60364-41 and CEI 64-8 have to be used to guarantee a current in common mode or leakage current (as defined in IEC 478/1 and CEI 22/3) no greater than 3.5mA. -
Page 34: Description Of The Protection Functions
12.2.9 Description of the protection functions 12.2.9.1 Protection “L” The "L" is the only protection that cannot be disabled because it is for self-protection against overloading of the relay itself. The types of trip curves settable are divided into two groups according to the IEC standard 60255-8. The protection trip time - inverse time - is given by the expression: where I is the fault current and I... -
Page 35: Protection "I
As a practical example, the figure above shows a fault on the load side of the "Relay 1a" isolated by the latter without the "Relay 1" or the "Relay 0" being affected; a fault immediately downstream from the "Relay 1" will be isolated by the latter without the "Relay 0" being affected, thus ensuring that the Areas 2...n remain operational. -
Page 36: Load Control Function
12.2.9.6 Load control function Single loads can be enabled/disabled on the load side before the overload protection L intervenes and trips the circuit-breaker on the supply side. This is done by contactors or switch-disconnectors (wired outside the release), controlled by the PR122/DC by means of contacts on the PR120/K module or on the PR021/K external unit. -
Page 37: Trip Curves
12.2.10 Trip curves The trip curves given are for guidance and only show a sub-group of the possible selections (see par. 12.2.9.7). 12.2.10.1 Trip curves for functions L-S(t=k/i 12.2.10.2 Trip curves for functions L-S(t=k)-I L3447 Model Scale Apparatus Emax DC L3728 Doc. -
Page 38: Putting Into Service
12.3.4 Initial settings If the PR122/DC is supplied ready installed in the circuit-breaker, it is up to ABB SACE to set all the variables referring to the circuit-breaker or the specific application correctly (e.g. type of circuit-breaker, Rating Plug size ...). For the PR120/V-PR120/LV module, set the Rated Voltage suitably. -
Page 39: User Interface
Voltage takeoff isolator Busbar voltage LED Pre-alarm indicator LED Alarm indicator LED Graphic display (the word ABB in the bottom left-hand corner indicates normal operation) Serial number of the PR122/DC Rating plug Pushbutton for exiting the sub-menus or for canceling (ESC) -
Page 40: Read And Edit Modes
12.4.2 Read and Edit modes The menus map (see par. 12.5.1) shows all the pages which can be obtained and how to move between them from the keyboard, in the "READ" mode (just to read the data) or in the "EDIT" mode (to set the parameters). Starting from any page displayed, after about 120 sec of inactivity, the default page will be automatically displayed (see par. - Page 41 Password You will be prompted to input a Password complete the password entry procedure (par.12.3.5) 0*** Enter password press the ↵ key (enter) Date Change the date using the keys ↓ (arrow down) ↑ (arrow up) and confirm by pressing the ↵ key (enter). June 12, 2007 Press ESC twice to return to the Main Menu.
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Page 42: Modification Of Basic Configuration
CB is open; If one of the above conditions is not met, the relay does not allow the language to be changed. 12.4.4 Default settings The PR122/DC is supplied by ABB SACE with the following predefined parameters: Protection On/Off Thresholds... -
Page 43: Operating Instructions / Operation In Service
12.5 Operating instructions / Operation in service 12.5.1 Menu As seen previously, the PR122/DC uses the display to show messages, diagrams and menus. These are organized in a logical and intuitive way. The following is a general layout showing how to access the main menu pages : 10:22:53 400A Menu... -
Page 44: Protections Menu
Each time the unit is turned on, or after more than 2 minutes of inactivity on the keyboard, the display indicates the following page (default): Percentage of the actual currents and voltages 10:22:53 with respect to the rated values (100%) Current of the polarity under the greatest load 400A 12.5.2 Protections menu... -
Page 45: Measurements Menu
Protection Parameter / Function Enable Trip ON / OFF Load Control Threshold 1 Enable ON / OFF Threshold Threshold 2 Enable ON / OFF Threshold Threshold lw Enable ON / OFF Threshold Note: for an explanation of the characteristics of the single protections and their settings and corresponding curves, see par. 12.2.9. 12.5.3 Measurements Menu The following is a summary of the parameters accessible from the menu in the PR122/DC unit. -
Page 46: Modules
Rate can be set on the values 9600 and 19200 bit/s. The physical protocol provides for the options: (8,E,1), (8,0,1), (8,N,2), (8,N,1). The addressing can be selected as standard Modbus or ABB. For further information on the PR120/D-M communication module, see paragraph 14.2 in this manual. -
Page 47: Information On The Trip And Opening Data
12.5.7.1 Information on the trip and opening data The PR122/DC unit saves all the information relating to the type of protection tripped, the opening data, the date and time. Using the "i Test" key makes the release show all these data directly on the display. There is no need for an auxiliary power supply for this function. With an auxiliary power supply, the information is shown immediately on the display without the need to press the "i Test"... -
Page 48: Table Of Error And Warning Messages
12.6.3 Table of error and warning messages All the messages which can be shown on the display relating to incorrect configurations, generic alarms or deriving from the protection functions and linked to useful information are described below. The following symbols in the warning signals have the following meanings: = Warning signal / Protection in alarm mode, with no trip (trip=off). -
Page 49: Troubleshooting Pr122/Dc Unit
Before consulting the following table, check for any error messages appearing for some seconds on the display. FN indicates the normal operation of the PR122/DC. In the case where the suggestions proposed do not lead to a solution of the problem, please contact the ABB SACE assistance service. N o . -
Page 50: Accessories
Through a BT030 wireless communication unit, the PR122/DC can be connected via wireless to a Pocket PC (PDA) or a standard PC, extending the range of information available to user. By means of the ABB SACE SD-Pocket communication software, the values of the currents flowing through the circuit-breakers, the value of the latest 20 interrupted currents and protection settings, can be read. -
Page 51: Sace Pr123/Dc Release - Identification
The PR123/DC is a high-performance self-supplied protection unit with Protection, Measurement, Data storage, Communication (optional), Self-test, Load control and Zone selectivity functions for the ABB SACE 'Emax' range of 3- and 4-pole low-voltage air circuit-breakers. The unit's user interface also enables parameter setup and completes the prealarm and alarm management for the protection and watchdog functions. -
Page 52: Auxiliary Power Supply
13.2.2 Auxiliary power supply The external auxiliary power supply is provided using a galvanically-separated power pack. Since the auxiliary voltage needs to be isolated from the ground, "galvanically separated converters" in accordance with the IEC standard 60950 (UL 1950) or the equivalent IEC 60364-41 and CEI 64-8 have to be used to guarantee a current in common mode or leakage current (as defined in IEC 478/1 and CEI 22/3) no greater than 3.5mA. -
Page 53: Measurement Functions
13.2.7 Measurement functions The current measuring (ammeter) function is available on all versions of the SACE PR123/DC unit. The display shows histograms of the polarity on the main page. In addition, the current of the polarity under the greatest load is given in numerical form. -
Page 54: Zone Selectivity "S
13.2.9.2.3 Zone selectivity “S” The zone selectivity function, guaranteed only if an auxiliary voltage is provided, enables the area of the fault to be isolated, only isolating the part of plant nearest to the fault, while keeping the rest of the plant operational. This is done by connecting all the zone selectivity outputs of the releases belonging to the same zone to one another (ZSO=K51/SZout) and taking this signal to the zone selectivity input (ZSI=K51/SZin) of the next release on the supply side. -
Page 55: Protection "G
13.2.9.6 Protection “G” This protection can be disabled; it can be of the fixed time (t=k) or inverse time (t=k/i ) type. In the latter case, the trip time is given by the expression æ ö ç ÷ where I=I is the fault current and I is the protection threshold. -
Page 56: Load Control Function
13.2.9.9 Load control function Single loads can be enabled/disabled on the load side before the overload protection L intervenes and trips the circuit-breaker on the supply side. This is done by contactors or switch-disconnectors (wired outside the release), controlled by the PR123/DC by means of contacts on the PR120/K module or on the PR021/K external unit. -
Page 57: Summary Table Of The Protection Function Settings For The Pr123/Dc
13.2.9.13 Summary table of the protection function settings for the PR123/DC Threshold Time Protection Threshold Time tolerance range range Tolerance 0.4xIn ≤ I ≤ 1xIn 3s ≤ t ≤ 102s , step 3s ± 10%, I 4 In ≤ Release between curve IEC60255-3 step 0.01xIn t1@ 3I... -
Page 58: Table Of Measurements
13.2.9.14 Table of measurements Type of measurement Standard operation range Range of values measured by the relay Range Tolerance % Currents 0,05 ... 12 In 0,3 ... 4 In ± 5 Ground fault current 0,05 ... 4 In 0,3 ... 4 In ±... -
Page 59: Trip Curves
13.2.10 Trip curves The trip curves given are for guidance and only show a sub-group of the possible selections (see par. 13.5.2). 13.2.10.1 Trip curves for functions L-S(t=k/I 13.2.10.2 Trip curves for functions L-S(t=k)-I L3447 Model Scale Apparatus Emax DC L3728 Doc. -
Page 60: Trip Curves For Function G
13.2.10.3 Trip curves for function G 0.2 ... 1 0.1 ... 1 13.2.10.4 Trip curves for function U t [s] 0.02 ... 0.9 0.02 0.5 ... 60 x In L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 58/108... -
Page 61: Trip Curves For Function Uv
13.2.10.5 Trip curves for function UV t [s] 0.5 … 0.95 0.95 0.1 … 5 x Un 13.2.10.6 Trip curves for function OV t [s] 1.05 … 1.2 1.05 0.1 … 5 1.05 1.15 1.25 x Un L3447 Model Scale Apparatus Emax DC L3728... -
Page 62: Trip Curves For Function Rp
CB is open and without any Vaux. If is not the case, there is no guaratee that the unit will function when powered from the busbar voltages without any Vaux. Contact ABB SACE. L3447... -
Page 63: Initial Settings
13.3.5 Initial settings If the PR123/DC is supplied ready installed in the circuit-breaker, it is up to ABB SACE to set all the variables referring to the circuit-breaker or the specific application correctly (e.g. type of circuit-breaker, Rating Plug size...). When the PR120/V module is installed, user must properly set the rated voltage. -
Page 64: User Interface
Voltage takeoff isolator Busbar voltage LED Pre-alarm indicator LED Alarm indicator LED Graphic display (the word ABB in the bottom left-hand corner indicates normal operation) Serial number of the PR123/DC Rating plug Pushbutton for exiting the sub-menus or for canceling (ESC) -
Page 65: Read And Edit Modes
13.4.2 Read and Edit modes The menus map (see par. 13.5.1) shows all the pages which can be obtained and how to move between them from the keyboard, in the "READ" mode (just to read the data) or in the "EDIT" mode (to set the parameters). Starting from any page displayed, the default page will be automatically displayed after about 120 sec inactivity (see par. - Page 66 Password You will be prompted to input a Password complete the password entry procedure (par. 13.3.6) 0*** Enter password press the ↵ key (enter) Date Change the date using the keys ↓ (arrow down) June 12, 2007 ↑ (arrow up) and confirm by pressing the ↵ key (enter). Enter password Press ESC twice to return to the Main Menu.
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Page 67: Modification Of Basic Configuration
Threshold I1 Select the value you want from the list and confirm pressing the ↵ key (enter). O,4 In (320A) Press ESC twice Before accessing the Main Menu, the following box will appear: Programming Accept the new configuration Confirm Reject the new configuration (the previous configuration is retained) Abort Change the previously input values. -
Page 68: Default Settings
13.4.4 Default settings The PR123/DC is supplied by ABB SACE with the following predefined parameters (Set A and Set B): Protection On/Off Thresholds Time Curve T.M. Trip 1 In 102s 6 In 50 ms Off: 0.04 s -- 4 In 0.2 In... -
Page 69: Operating Instructions / Operation In Service
13.5 Operating instructions / Operation in service 13.5.1 Menu As seen previously, the PR123/DC uses the display to show messages, diagrams and menus. These are organized in a logical and intuitive way. The following is a general layout showing how to access the main menu pages. 10:22:53 400A 690V... -
Page 70: Protections Menu
Each time the unit is turned on, or after more than 2 minutes of inactivity on the keyboard, the display indicates the following page (default): Percentage of the actual currents and 10:22:53 voltages with respect to the rated values Current of the polarity under the greatest (100%) 400A load... - Page 71 Protection Parameter / Function Enable StartUp ON / OFF StartUp threshold StartUp time Enable ON / OFF Threshold I2 Time t2 Zone selectivity ON / OFF Selectivity time Enable StartUp ON / OFF StartUp threshold StartUp time Enable ON / OFF Threshold I3 Enable StartUp ON / OFF...
- Page 72 Protection Parameter / Function Enable Trip ON / OFF Load control Threshold 1 Enable ON / OFF Threshold Threshold 2 Enable ON / OFF Threshold Threshold lw Enable ON / OFF Threshold Note: for an explanation of the characteristics of the single protections and their settings and corresponding curves, see par. 13.2.9. L3447 Model Scale...
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Page 73: Measurements Menu
13.5.3 Measurements Menu For a complete description of the functions of the PR120/V module, see par. 14.1. The following is a summary of the parameters accessible from the menu in the PR123/DC unit. 13.5.3.1 Measurements Menu table Setting Parameter / Function Values Notes Historicals... -
Page 74: Modules
Rate can be set on the values 9600 and 19200 bit/s. The physical protocol provides for the options: (8,E,1), (8,0,1), (8,N,2), (8,N,1). The addressing can be selected as standard Modbus or ABB. For further information on the PR120/D-M communication MODULE, see paragraph 14.2 in this manual. -
Page 75: Test Menu
13.5.6 Test Menu Access to the Test menu is password protected. Password Menu Test Enter ↵ Measures Enter ↵ CB status 0*** Settings Auto Test Test Trip Test (disabled) Device test CB open Enter password The menu shows the state of the CB, in the dialog module (COM module) the state of the springs and the position of the CB, and in this submenu you can make the CB open or close. -
Page 76: Definitions Of Alarms And Signals In The Pr123/Dc Unit
13.6 Definition of alarms and signals in the PR123/DC unit 13.6.1 Optical signals Signalling Description • The prealarm threshold has been exceeded; with current values in the range 0.9xI < I < 1.05xI • Presence, between two polarity, of unbalance above the value programmed for the "U" protection, Warning (yellow) led with protection trip disabled;... -
Page 77: Table Of Error And Warning Messages
Before consulting the following table, check for any error messages appearing for some seconds on the display. FN indicates the normal operation of the PR123/DC. In the case where the suggestions proposed do not lead to a solution of the problem, please contact the ABB SACE assistance service. N o . -
Page 78: In The Case Of A Fault
4. Send/communicate all the information collected, together with the circuit diagram for the circuit-breaker, to your nearest ABB Customer Support service. The completeness and accuracy of the information given to the ABB Assistance service will facilitate technical analysis of the problem encountered, and will allow us to carry out all actions useful for the user rapidly. -
Page 79: Modules
14 Modules 14.1 PR120/V-PR120/LV MEASURING Module 14.1.1 General characteristics The MEASURING module records and processes the voltages. The measurements are sent by the module to the protection release, enabling the implementation of a set of protection and measurement functions. The module comes with a "Power" LED and a sealable isolator for dielectric stiffness tests. -
Page 80: Operating Instructions / Operation In Service
14.1.4 Operating instructions / Operation in service 14.1.4.1 Using the Measurement submenus with the PR120/V-PR120/LV The menu for accessing the functions of the module is illustrated below. 14.1.4.2 Table of submenus for the PR120/V-PR120/LV module This menu is accessible using the path "Settings/Modules/ PR120/V module" Parameter / Function Values Notes... -
Page 81: Measurements Menu Table
14.1.4.3 Measurements Menu table For the sake of simplicity the table refers to the Measurements menu . Parameter / Function Values Notes Historicals Trips List of trips Events Events log Measurements Maximum current Maximum active power Mean active power Maximum voltage Minimum voltage Reset measurements Mean power... -
Page 82: Pr120/D-M - Com Communication Module
14.2 PR120/D-M - COM communication module 14.2.1 General characteristics Dedicated communication module for connecting the relay to a Modbus net, and for remote supervisory and control activities on the circuit-breakers. 14.2.2 Front view - "Power" LED (lit when Vaux is installed) - LED RX/TX (data send/receive signal). -
Page 83: Pr120/K Signalling Module
14.3 PR120/K signalling module 14.3.1 General characteristics The module enables the local signalling of alarms and circuit-breaker trips. There are two possible configurations for the SIGNALLING module: - default configuration: 1 digital input, 3 contacts with pole in common, 1 independent contact; - alternative configuration: 4 independent contacts. -
Page 84: Power Supply
14.3.6 Power supply The PR120/K signalling module is powered in auxiliary mode by the relay and/or by the PR120/V-PR120/LV as specified in chapter 14.1. 14.3.7 PR120/K module menu The PR120/K is fitted with four relays having contacts named K51/p1, K51/p2, K51/p3 and K51/p4 which can signal different situations selectable by the user from among those given in the standard list, whereas customizations can be programmed by selecting "custom"... -
Page 85: Pr120/K Module Menu Layout
14.3.9 PR120/K module menu layout The menu layout relating to relay no. 1 (K51/p1) is shown below as an example; the same applies to the menus for the other relays. Signalling module Relay n.1 Relay n.2 Relay n.3 Relay settings 1/13 Signalling module Relay n.1... -
Page 86: Pr120/Dc - Override Protection Module
14.4 PR120/DC "override" protection module PR120/DC 14.4.1 General characteristics This module is always included in the releases PR122/DC and PR123/DC and it serves as an override protection when the release is not powered. The value of the threshold depends on the circuit breaker, as shown in the table below: Threshold (kA) E2 800 E2 1000... -
Page 87: Appendices
15 Appendices 15.1 PR021/K outside signalling unit 15.1.1 General information The signalling unit converts the digital signals provided by the protection units into electrical signals by means of normally-open electric contacts. Information on the status of the protection functions transits on a dedicated serial line connected to the release. The following signals/contacts are available: - L overload prealarm (the alarm signal remains enabled throughout the overload, until the release has been tripped) - protections timing and trip (the protections trip signal remains enabled during the timing-controlled phase and after the release has been tripped) -
Page 88: Important Note
15.1.5.1 PR021/K unit menu table Protection Parameter / Function Values Notes PR021K unit Present Absent Leave as Absent if there is no PR021/K Relay no. 1 / 2 / 3 / 4 / 6 / 7 / 8 Signal source function None L Prealarm L Timing... -
Page 89: Data Logger (Recorder)
15.2 Data logger (recorder) The data logger function is available on the PR122/DC and PR123/DC units and it can be used to save the instantaneous values of certain analog and digital measurements automatically in a large-sized memory buffer. The data can easily be downloaded from the unit using either the SD- Pocket application with a Bluetooth port, or the SD-TestBus application via a Modbus bus, and transferred to any personal computer for processing. -
Page 90: Setting The Stopping Delay
If you select "None" for the stop event, the data logger can be stopped only by a stop command from the operator panel, from the system or following a trip generated by the relay. 15.2.2.4 Setting and viewing customized stop events (triggers) From the system, you can set customized stop events (triggers) to coincide with the events shown in paragraph 15.3. -
Page 91: Description Of The Information Given By The Data Logger System
Maximum recording time is established by the sampling frequency set only, as described in the table in paragraph 15.2.2.2; recording time may be lower than maximum time attainable when the sum of stopping delay and time elapsing between a restart trigger and a trigger is lower than the maximum value, as described in the figure below: Recording time Stopping delay... -
Page 92: Information From The System On The Configuration And Status Of The Data Logger
15.2.4.3 Information from the system on the configuration and status of the Data Logger The following information is provided on the status of the data logger: STATUS Waiting trigger: this means that the data logger is enabled and waiting for the occurrence of the event selected as the trigger Data Logger triggered: this indicates that the trigger event has occurred and the data logger is still recording Data Logger stopped:... -
Page 93: Standard" Events For Pr120/K And For Pr021/K Selectable From The Relay
15.3 Table showing list of events 15.3.1 "Standard" events for PR120/K and for PR021/K selectable from the relay Event no. Description None (none enabled) L prealarm (L protection prealarm) L timing (L protection timing) S timing (S protection timing) L trip (L protection trip) S trip (S protection trip) -
Page 94: Overall Dimensions
16. Overall dimensions Fixed circuit-breaker Basic version with rear terminals Upper supply 4 POLES E2 - E4 E3 - E6 3 POLES 3 POLES 4 POLES Lower supply E3 - E6 E2 - E4 E2 III E2 IV Legend View A View A 1 Inside edge of compartment door... - Page 95 Fixed circuit-breaker Basic version with rear terminals E4 III Iu=2500A View A Iu=3200A Iu=1600A Iu=2000A Iu=2500A E4 IV Iu=3200A View A Iu=1600A Iu=2000A Iu=2000A Iu=2500A E3 III View A Iu=800A Iu=1000A Iu=1250A Iu=1600A Tightening torque of the main terminals: Nm 70 Tightening torque of the earthing screw: Nm 70 Fig.
- Page 96 Fixed circuit-breaker Basic version with rear terminals Iu=2000A E3 IV Iu=2500A View A Iu=800A Iu=1000A Iu=1250A Iu=1600A E6 III View A E6 IV View A Tightening torque of the main terminals: Nm 70 Tightening torque of the earthing screw: Nm 70 Fig.
- Page 97 Fixed circuit-breaker Compartment dimensions 1000 1260 Depth 3 POLES 4 POLES oles for passing through flexible cables Compartment door drilling for mechanical interlocks N° 2 holes for IP54 protection Fig. 38 L3447 Mod. Scala Apparecchio Emax DC L3728 N° Doc. N°...
- Page 98 Withdrawable circuit-breaker Basic version with rear terminals Upper supply E2-E4 4 POLES E3-E6 3 POLES 3 POLES 4 POLES Lower supply E3 - E6 E2 - E4 Legend 1 Inside edge of E2 IV E2 III compartment door View A View A 2 Segregation (where foreseen)
- Page 99 Withdrawable circuit-breaker Basic version with rear terminals Tightening torque of the fixing screws: 20 Nm Tightening torque of the main terminals: 70 Nm Tightening torque of the earthing screw: 70 Nm E4 III View A E4 IV View A E3 III View A Fig.
- Page 100 Withdrawable circuit-breaker Tightening torque of the fixing screws: 20 Nm Basic version with rear terminals Tightening torque of the main terminals: 70 Nm Tightening torque of the earthing screw: 70 Nm E3IV View A E6 III View A E6 IV View A Fig.
- Page 101 Withdrawable circuit-breaker Compartment dimensions 1000 1260 Depth 3 POLES 4 POLES Holes for passing through flexible cables Compartment door drilling for mechanical interlocks N° 2 holes for IP54 protection Fig. 42 L3447 Mod. Scala Apparecchio Emax DC L3728 N° Doc. N°...
- Page 102 Compartment door mechanical lock Door drilling Minimum distance between the circuit-breaker and the switchgear wall Fixed version Withdrawable version 3 POLES 4 POLES Fig. 43 L3447 Mod. Scala Apparecchio Emax DC L3728 N° Doc. N° Pag. 1SDH000635R0002 100/108...
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Page 103: Circuit Diagrams
17. Circuit diagrams Warning Before installing the circuit-breaker, carefully read note F on the circuit diagrams. Operating status shown The circuit diagram is for the following conditions: - withdrawable circuit-breaker, open and racked-in - circuits de-energised - releases not tripped - motor operating mechanism with springs unloaded. - Page 104 22 - 46 - 47 Notes A) The circuit-breaker is only fitted with the accessories specified in the ABB SACE order acknowledgement. Consult this catalogue for information on how to make out an order. B) The undervoltage release is supplied for operation using a power supply branched on the supply side of the circuit-breaker or from an independent source.
- Page 105 Circuit diagram symbols (IEC 60617 and CEI 3-14 ... 3-26 Standards) Shield Terminal Change-over position contact (may be drawn with momentary circuit in any shape) breaking (limit contact) Power isolator with automatic Time delay Plug and socket (male and female) breaking action Mechanical or electrical Switch-disconnector...
- Page 106 Circuit diagram - Operating status Four-pole E2-E3 circuit-breaker with PR122/DC or PR123/DC Three-pole E2-E3 circuit-breaker with PR122/DC or PR123/DC electronic release electronic release > > XK10 XK10 > > > > > > > > >> > > > > >...
- Page 107 Motor operating mechanism, opening, closing and undervoltage releases Signalling contacts L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 105/108...
- Page 108 Signalling contacts L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 106/108...
- Page 109 Auxiliary circuits of the PR122/DC and PR123/DC releases Warning: see note F PR122/DC PR122/DC PR123/DC PR123/DC PR120/D-M communication module PR122/DC PR123/DC L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 107/108...
- Page 110 PR120/K signalling module PR122/DC PR122/DC PR123/DC PR123/DC PR021/K signalling unit PR122/DC PR123/DC L3447 Model Scale Apparatus Emax DC L3728 Doc. No. Page No. 1SDH000635R0002 108/108...
- Page 112 Due to possible developments of standards as well as of materials, the characteristics and dimensions specified in the present catalogue may only be considered binding after confirmation by ABB SACE. ABB S.p.A. ABB SACE Division Via Baioni, 35 - 24123 Bergamo - Italy Tel.: +39 035.395.111 - Telefax: +39 035.395.306-433...