Download
Share
Print this page
Areva MiCOM P521 Documentation Update
  1. Manuals
  2. Brands
  3. Areva Manuals
  4. Relays
  5. MiCOM P521
  6. Documentation update

Areva MiCOM P521 Documentation Update

Current differentiall relay
Hide thumbs

Advertisement

Quick Links

Download this manual
MiCOM P521
Current Differential Relay
Software Version 1.D
Update Documentation
P521/EN AD/B21

Advertisement

loading
Need help?

Need help?

Do you have a question about the MiCOM P521 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Areva MiCOM P521

Summary of Contents for Areva MiCOM P521

  • Page 1 MiCOM P521 Current Differential Relay Software Version 1.D Update Documentation P521/EN AD/B21...
  • Page 3 Update Documentation P521/EN AD/B21 MiCOM P521 Page 1/24 P521 UPDATE DOCUMENTATION In the firmware version 1.D of P521, several changes on existing features have been added. These are described with reference to the documentation listed below: Release Version Documentation 29.01.2004...
  • Page 4 P521/EN AD/B21 Update Documentation Page 2/24 MiCOM P521 Document Ref. Section Page No. Description MiCOM P521 trip circuit supervision P521/EN AP/B11 mechanism Figure 22 : amended Figure 23 : amended 3.8.1 Figure 24 : amended Unconditional 4 wire pilot communications for distances greater than 1.2km (P595)

  • Page 5: Setting Error

    Update Documentation P521/EN AD/B21 MiCOM P521 Page 3/24 USER GUIDE (P521/EN FT/B11) 3.4.2 Relay hardware or software alarms Any software or hardware fault of the MiCOM relay generates a "hardware/software alarm". If several alarms are generated they are all stored in their order of appearance.
  • Page 6 P521/EN AD/B21 Update Documentation Page 4/24 MiCOM P521 3.5.3.7 Protection communication menu Heading of the COMMUNICATION menu. To gain access COMMUNICATION to the Protection Comms menu, press 2, 6 3 times then 2 and 6. To gain access to the sub menu points, press Heading of the Protection Comms menu.
  • Page 7 Update Documentation P521/EN AD/B21 MiCOM P521 Page 5/24 Heading of the Invert Output Relays sub menu. To gain Invert Output access to the sub menu content, press 2. Relays Invert output relay RL2. Output 2 Select Yes or No. Invert output relay RL3.
  • Page 8 P521/EN AD/B21 Update Documentation Page 6/24 MiCOM P521 Label abstract Label signification Log Sel 1 Logic select 1 Log Sel 2 Logic select 2 Change set Changes setting group (default setting group = 1) θ Reset Resets the thermal state...
  • Page 9 Update Documentation P521/EN AD/B21 MiCOM P521 Page 7/24 Allocation of logic input 5. To allocate a function to logic Input 5 input 5, press 5 then use 8 or 2 to select the desired None function from the available list. Validate your choice using Displays the time delay for auxiliary timer 1 (tAux1).
  • Page 10 P521/EN AD/B21 Update Documentation Page 8/24 MiCOM P521 Associates the I>>> time delay threshold with the cold Cold Load PU load pick up function. To associate tI>>> with the cold tI>>>? load pick up function, press 5 and select (Yes). Select (No) if the user does not wish to associate tI>>>...
  • Page 11 Update Documentation P521/EN AD/B21 MiCOM P521 Page 9/24 Associates the thermal threshold with the cold load pick up Cold Load PU function. To associate the thermal threshold with the cold t Therm.? load pick up function, press 5 and select (Yes). Select (No) if the user does not wish to associate the thermal threshold with the cold load pick up function.
  • Page 12 P521/EN AD/B21 Update Documentation Page 10/24 MiCOM P521 Select the possibility to block the instantaneous signal Ie> Block Ie>? in the event of a circuit breaker failure detection. Select Yes or No. 3.5.4.13 Circuit breaker supervision sub menu The CB Supervision sub menu makes it possible to enable the circuit breaker supervision and monitoring function and the various settings associated with this function.
  • Page 13 Update Documentation P521/EN AD/B21 MiCOM P521 Page 11/24 Enables / Disables the maximum CB operations function. CB Open Alarm? Select Yes or No. If the user selects (Yes), the following menu is displayed. If the user selects (No) the CB Operations supervision function is disabled (go to ΣAmps(n) menu).
  • Page 14 P521/EN AD/B21 Update Documentation Page 12/24 MiCOM P521 TECHNICAL DATA AND CURVE CHARACTERISTICS (P521/EN TD/B11) Logic inputs and outputs Logic input − Type Independent optical isolated − Burden 10mA per input − Recognition Times <10ms (dc applied to standard opto input) <20ms (ac applied to standard opto input)

  • Page 15: Dielectric Withstand

    Update Documentation P521/EN AD/B21 MiCOM P521 Page 13/24 Dielectric withstand IEC60255-5: 2000 2.0kVrms for one minute between all terminals and case earth (including RS485/RS232 socket SK1). 2.0kVrms for one minute between all terminals of each independent circuit grouped together, and all other terminals (including RS485/RS232 socket SK1).
  • Page 16 Three application examples are shown below. Example 1 In this example only the 52a auxiliary contact is available, the MiCOM P521 relay monitors the trip coil whatever the CB status (CB open or CB closed ). However, in this example the relay does not supervise the trip circuit prior to the trip contact.
  • Page 17 Update Documentation P521/EN AD/B21 MiCOM P521 Page 15/24 + Vdc Trip Order Opto-input MiCOM P521 Trip Coil - Vdc P0038ENb Figure 22: Trip coil monitoring Example 2 In this example both the 52a and 52b auxiliary contacts are available, the MiCOM P521 relay monitors the whole of the trip circuit when the CB is closed and part of the trip circuit when the CB is open.
  • Page 18 Example 3 As with example 2, both the 52a and 52b auxiliary contacts are available. The MiCOM P521 relay monitors the whole of the trip circuit whatever the CB status (CB open or CB closed). In this example resistor R1 needs to be fitted to prevent permanent trip coil energisation, if the trip contact (RL1) is latched, stays involuntarily closed, or a long trip pulse time is programmed.
  • Page 19 MiCOM P521 Page 17/24 Note: The P595 interface device is identical to the AREVA T&D PZ511 interface except that the P595 has accessible setting switches. The switch settings, to allow communications between P521 relays, can be found in the modem configuration document (P521/EN MC).
  • Page 20 P521/EN AD/B21 Update Documentation Page 18/24 MiCOM P521 COMMISSIONING AND MAINTENANCE (P521/EN CM/B11) 9.3.2 Protection comms fault As soon as a problem with the protection comms is detected the operation of the main protection is stopped. All other protection elements continue to operate and those selected as backup in the current setting group will be enabled.
  • Page 21 Update Documentation P521/EN AD/B21 MiCOM P521 Page 19/24 Loopback Test Box Green Test LED Fuse Holder 100MAF 250V Test Mode Switch Relay Case Protection Comms Card P1250ENc Figure 2: Application of P520L loopback test box If the fault is with the active part of the relay, withdraw the active part and return it to the factory for repair.
  • Page 22 P521/EN AD/B21 Update Documentation Page 20/24 MiCOM P521 MODEM CONFIGURATION (P521/EN MC/B11) Definitions Unconditioned pilot Twisted pair of metallic wire between 19 (0.9mm) and wires: 26AWG (0.4mm). Standard dial-up telephone circuits, leased circuits that run through signal equalisation equipment or standard flat modular telephone cable are not acceptable.
  • Page 23 Update Documentation P521/EN AD/B21 MiCOM P521 Page 21/24 ACCESSORIES (P521/EN AC/B11) Function of loopback test box In the unlikely event that a P521 relay has a failure in the protection communications hardware, it is desirable to determine if the fault is located in the active part (withdrawable part) of the relay or in the protection communications card.
  • Page 24 Relay type: P521 … Software Hardware Original Technical Version Description of Changes Suffix Date of Issue Compatibility Documentation Major Minor Jul 2003 Original Issue V2.09 or Later P521/EN M/B11 Current differential blocking logic functionality ü changed to inhibit protection timer when blocking Oct 2003 V2.09 or Later P521/EN M/B11...
  • Page 25 Relay Software Version ü...

  • Page 26: Information Required With Order

    Update Documentation P521/EN AD/B21 MiCOM P521 Page 24/24 Information Required with Order MiCOM Range Protection Device Type Current Differential Platform x20 Platform Model Standard E/F Current 0.1 - 40 Ιon 0.01 - 8 Ιon 0.002 - 1 Ιon Protection Communication...
  • Page 28 TRANSMISSION & DISTRIBUTION Energy Automation & Information energy.automation-information@areva-td.com www.areva.com...