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ABB UniSec Digital Operation And Maintenance Manual

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D I S T R I B U T I O N S O L U T I O N S
UniSec Digital
Operation and maintenance manual
Index
Safety
Introduction
1. Technical Specifications
1.1 Electrical Specifications
1.2 Internal arc withstand
classification
2. General information about UniSec Digital
2.1 Maintenance intervals
2.2 Inspections
2.3 Assistance
2.4 Repair and replacement
2.5 Measurements given by LHMI module
2.6 Alarms and corrective
3. General information about the MDC4 -M
concentrator
3.1 Overview
3.2 Physical Interfaces
3.3 Terminals diagram
3.4 SAIS application
4. MDC4-M Operation and Commissioning
4.1 LHMI Operation
4.2 Commissioning
5. System technical data
5.1 OP320 LHMI
5.2 MDC4-M
5.3 Serial communication parameters
6. Wireless sensor replacement
6.1 ....
6.2 Changing the sensor identification
code in the MDC4-M concentrator
7. Concentrator replacement
8. Environmental sensor replacement
9. LHMI module replacement
Annex 1
Annex 2
Glossary
2
3
5
5
5
6
7
7
7
7
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8
10
10
11
12
13
14
14
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  • Page 1 — D I S T R I B U T I O N S O L U T I O N S UniSec Digital Operation and maintenance manual Index Safety Introduction 1. Technical Specifications 1.1 Electrical Specifications 1.2 Internal arc withstand classification 2. General information about UniSec Digital 2.1 Maintenance intervals 2.2 Inspections...

  • Page 2: Qualified Personnel

    NOTE instructions of primary importance. You are strongly This manual is an addition to the advised to engage the services of ABB assistance operation and maintenance manual for personnel for maintenance and repair work. UniSec panels 1VFM200005. Personnel must be trained and have at least a basic knowledge of Information of crucial importance working with monitoring and diagnostic devices.

  • Page 3: General Aspects

    D I S T R I B U T I O N S O LU T I O N S — Introduction General aspects Regulations and specifications CEI EN/IEC Title UniSec is an air-insulated switchgear for indoor use, standards designed for the secondary distribution of medium IEC EN 62271-200 High voltage switchgear and controlgear voltage. UniSec switchgear is the result of on-going Part 200: Metal-enclosed factory-built innovation and the desire to meet the requirements assemblies for rated voltages above 1 kV and up to and including 52 kV of a constantly evolving market.

  • Page 4: Operating Conditions

    Pollution to prevent condensation from forming and, consequently, corrosion or other adverse effects. The ambient air must not be excessively polluted by dust, smoke, corrosive and/or inflammable gases, vapours or The operating system of the heaters depends on salinity the relative design, while the specifications must (1) Consult ABB for –25°C operating temperatures and –40°C be taken from the order documents storage temperatures Table 2. Operating conditions...

  • Page 5: Technical Data

    1000 1000 gas in switch-disconnector Rated filling pressure Minimum operating pressure Quantity of SF gas 0,25 0,25 0,25 (1) Consult ABB for 21 kA/52.5 kAp (2) For LSC2B classified units (3) For Hysec 16 kA (1s) 40 kAp (4) 25 kA 2s for LSC2A classified units 1.2 Internal arc withstand NOTE Consult the manuals of the respective classification apparatuses for the specifications of any additional equipment, e.g. relays and circuit-...
  • Page 6 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L — 2. General information about UniSec Digital The UniSec Digital monitoring system can be...

  • Page 7: Maintenance Intervals

    -M concentrator and all the sensors connected to it. If the value “0” is shown in the LHMI module or in Health diagnosis screen the mobile APP, it means that the sensor is faulty or This screen shows the general condition of the not connected correctly. system by indicating its “health status, which can In this case it is necessary to check that the wiring is carried out according to the wiring diagram, if it is • Good: f all the parameters are within the specified still not possible to display the measurement limits correctly, contact ABB. • Bad: If at least one parameter is not within the specified limits 2.3 Assistance For UniSec Digital units, the same assistance The parameter beyond the specified limits appears instructions indicated in paragraph 4.4 of the UniSec in the “Diagnosis” line: • Good: If all the parameters are within the specified 1VFM200005 manual remain valid. limits • Temp abnormal: In the case of temperature 2.4 Repair and replacement imbalance between the phases •...
  • Page 8 The threshold values are defined on the basis of the characteristics of the components installed and the tests performed to ensure the apparatus functions correctly. • Gas tank pressure screen: The pressure value of Contact ABB to define warning and alarm thresholds for particular service conditions. the gas-insulated disconnector is displayed in this screen. Once one of the thresholds is exceeded, the concentrator displays an alarm signal via the “Alarm”...
  • Page 9 D I S T R I B U T I O N S O LU T I O N S The measurement that exceeds the threshold also • In the event of a warning, it means that the appears in red in the mobile APP. parameter is outside the nominal values and is The example below shows a screen on the mobile approaching the alarm threshold. In this case it is APP where one of the parameters is in the alarm necessary to monitor the parameter to prevent it state: from exceeding the alarm threshold and to intervene during the next scheduled maintenance intervention to identify the cause of the anomaly. NOTE Consult the UniSec operation and maintenance manual for further details about maintenance operations WARNING If one or more of the temperature values in...
  • Page 10 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L — 3. General information about the MDC4-M concentrator 3.1 Overview MDC4 -M is part of ABB's monitoring and diagnostic It is the key carrier to realize the primary and concentrator family. It collects data from intelligent secondary equipment intelligence. sensors that are installed in related equipment,...

  • Page 11: Physical Interfaces

    D I S T R I B U T I O N S O LU T I O N S 3.2 Physical Interfaces Front side Front panel with LED and QR Label Name Position LED state Description Running LED Indicator Auxiliary supply voltage in disconnected Flasching Normal operation Comm. LED Indicator Without TR wireless communication Flashing TR wireless communication Alarm LED Indicator No Allarm presents Alarm enabled...
  • Page 12 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 13 D I S T R I B U T I O N S O LU T I O N S 3.4 SAIS application In the following the general scheme of the SAIS (secondary air insulated switchgear) application is reported. For more information refer to paragraph 2. UniSec digital application as example...
  • Page 14 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 15 D I S T R I B U T I O N S O LU T I O N S Using the LHMI Below is reported an example of the navigation between the different pages. OP320 LHMI Navigation...
  • Page 16 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L — 4. MDC4-M Operation and Commissioning 4.2 Commissioning User Login and Equipment Connection First enable WiFi on the phone, then open the Mobile APP download and installation mobile APP, click "Scan" to scan the QR code on ABB engineering service personnel and users can MDC4 -M frontpanel, tolog into the data monitoring install special mobile application to view local data interface automatically. and set related parameters. Mobile APP is used together with MDC4 -M intelligent monitoring unit which iOS and Android are supported. Please scan the QR code below to get the application.

  • Page 17: Parameter Settings

    Switchgear parameter and APP language settings The information of the switchgear can be viewed by Click "Set" on the upper right of the interface to set clicking "Switchgear Settings". Name, model, the related parameters e.g.,circuit breaker factory number and Modbus address can be set parameters, switchgear parameters and language through "Edit" on the upper right. And please do not information. set same Modbus addresses fortwo different switchgears. After setting, click "Save" and "Update" Temperature measurement parameter setting to complete the setting. Click "Temperature Measurement Parameters" to enter the temperature setting interface. This option is used to set the frequency band (from 1 to 60), the reverse phase sequence of the switchgear (A-B-C or C-B-A) and the over-temperature alarm threshold (from 20°C to 115°C). Please click "Save" and "Update" in sequence after setting. Temperature measurement parameter setting Switchgear parameter setting The "Advanced Settings" on the upper right of the interface is to change the ID of the temperature measurement module, the settingis generally operated by ABB field service engineers. If change required, please contact ABB. The frequency bandhas been set up in manufacture. It is not recommended to modify it without authorization, otherwise it may lead to the failure of communication.

  • Page 18: System Technical Data

    U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...

  • Page 19: Environmental Conditions

    IEC 60068-2-2 temperature GB/T 7261-2016 Enviroment humidity 20...85%, non-condensing operation Atmospheric pressure 86...106 kPa Low- -20 °C 96 H IEC 60068-2-1 Altitude Up to 2000 m temperature GB/T 7261-2016 Transport and storage -40...85 °C operation temperature range Steady Test for 48 H at +40 IEC 60068-2-78 Overvoltage category humidity-heat °C and 93% GB/T 7261-2016 humidity Pollution degree Alternating Tfora maof est for IEC 60068-2-30 Ip grade IP 20 humidity-heat 48h at a maximum GB/T 7261-2016 1) For higher altitude application, please contact ABB. test temperature of +55 °C...

  • Page 20: Electromagnetic Compatibility Tests

    U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...

  • Page 21: Serial Communication Parameters

    • For electrical applications, check after EN 62311:2008 installation that electrical wires are not in contact with moving parts • Le seguenti operazioni possono essere svolte solo dopo aver eseguito un training di livello L2 per manutentori di equipaggiamento in sito. Contattare ABB per ulteriori informazioni.
  • Page 22 • Close the strap around the bar and make sure the sensor is well in contact with the bar and Software updating can only be done by an ABB cannot move operator with the dedicated software. • In the case of two bars per phase, wrap the...
  • Page 23 D I S T R I B U T I O N S O LU T I O N S Example of mounting on cable connection with TA WARNING Sensor replacement should be done by keeping the same position of the old sensor in the main circuit.
  • Page 24 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 25 D I S T R I B U T I O N S O LU T I O N S 5. Enter the following password: 111111. 7. Click "Upload" to upload the new code and confirm the change. 6. Select the code of the failed sensor and replace it with the new code. 8. The message confirming the change made is shown. Having completed entering the new codes into the mobile APP, return the panel to service and verify that the temperature measurements are reported correctly to the user interfaces.
  • Page 26 • Detach the support plate from the back of the old Before replacing the concentrator, make concentrator and attach it to the new concentrator sure the low voltage cell is de-energized. NOTE The concentrator must be configured considering the sensors in the cabinet. Contact ABB for configuration of the Concentrator. • Open the low voltage door. • Attach the new concentrator to the DIN rail. • Reattach the connectors and screw them to the concentrator •...
  • Page 27 D I S T R I B U T I O N S O LU T I O N S — 8. Environmental sensor replacement DIN type bracket b) Mount the new sensor • Fix the sensor on the DIN rail Environmental sensor a) Dismantle the old sensor • Disconnect the connector from the sensor • Attach the bracket to the carpentry • Unscrew the DIN rail fixing screw. •...
  • Page 28 9. LHMI module replacement • Unscrew the side supports of the module NOTE Depending on the configuration of the monitoring system, it is necessary to have a specific firmware version installed in the screen. Contact ABB to install the most suitable firmware version • Remove the old monitor from the door and insert a) Dismantling the old monitor the new monitor.
  • Page 29 D I S T R I B U T I O N S O LU T I O N S • Connect both power and signal connectors. • Close the low voltage door. • Power up the LHMI module and verify that sensor measurements are reported in the monitor.
  • Page 30 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 31 D I S T R I B U T I O N S O LU T I O N S Temporary fixing of sensors for transport NOTE Before performing any operation, please refer to the UniSec 1VFM200005 panel operation and maintenance manual 1. Remove the sensor from the temporary mounting (see fig.1) and mount it on the same phase bus. 2. IMPORTANT: The sensors are already synchronized with the concentrator, do not change the position of the sensor with respect to...
  • Page 32 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 33 D I S T R I B U T I O N S O LU T I O N S 4. Tighten the strap as much as possible around the bar and make sure the sensor does not move Final position: Plastic holder under the strap 5. Close the clip 3. Place the lower part of the sensor in contact with the bar and insert the end of the strap into the clip...
  • Page 34 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 35 D I S T R I B U T I O N S O LU T I O N S 3. Fix the sensor on the lug of the MV cable • Wrap the sensor strap around the lug and tighten it as much as possible. • Close the strap clip • Be careful to observe the configuration of the monitoring system as shown behind the LV door • Be careful not to mount the sensor on top of any MT cable shielding Connect probe 5. Sensor end position • Place the excess of cable inside the MT equalizer • IMPORTANT: Make sure that the sensor connector does not approach adjacent phases to maintain main circuit isolation •...
  • Page 36 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 37 D I S T R I B U T I O N S O LU T I O N S — Note...
  • Page 38 U N I S E C D I G I TA L O P E R AT I O N A N D M A I N T E N A N C E M A N U A L —...
  • Page 39 D I S T R I B U T I O N S O LU T I O N S — Note...
  • Page 40 More product information: abb.com/mediumvoltage Your contact center: abb.com/contactcenters More service information: abb.com/service © Copyright 2022 ABB. All rights reserved. The data and illustrations are not binding. We reserve the right to make changes in the course of technical development of the product.

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