Zone Selective Interlocking Test

Zone Selective Interlocking Test Requirements

The system should be tested upon initial start-up and:

in accordance with a facility maintenance schedule;
if any of the components in the system are replaced;
if any work is done in the area of the system wiring;
if required per the installation requirements.

Zone Selective Interlocking Test Necessary Tools

The following is needed to perform a zone selective interlocking test:

Downstream Circuit Breaker	Upstream Circuit Breaker
Downstream Circuit Breaker	MasterPacT MTZ	MasterPacT NW	MasterPacT NT	PowerPacT P/R	PowerPacT H/J/L
MasterPacT MTZ	EcoStruxure Power Commission Software	EcoStruxure Power Commission Software	EcoStruxure Power Commission Software	N/A	N/A
	Mini B USB Cable Ethernet Patch Cord	Mini B USB Cable Ethernet Patch Cord	Mini B USB Cable Ethernet Patch Cord
	0614DB2001 User Guide (this document)	0614DB2001 User Guide (this document)	0614DB2001 User Guide (this document)
MasterPacT NW	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	N/A	N/A	N/A
MasterPacT NW	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	N/A	N/A	N/A
MasterPacT NT	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	N/A	N/A
MasterPacT NT	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	N/A	N/A
PowerPacT P/R	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	Full Function Test Kit or Service Interface Kit	N/A
PowerPacT P/R	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	NHA35975 Full-Function Test Kit Instruction bulletin. or Service interface for MasterPacT NT/NW, ComPacT NS, and PowerPacT P-, R-Frame circuit breakers. User guide: DOCA0170EN	N/A
PowerPacT H/J/L	UTA tester+ Local Test Utility Software	UTA tester+ Local Test Utility Software	UTA tester + Local Test Utility Software	UTA tester + Local Test Utility Software	UTA tester + Local Test Utility Software
PowerPacT H/J/L	Refer to the connection procedure and miscellaneous section in the LTU software’s online help.	Refer to the connection procedure and miscellaneous section in the LTU software’s online help.	Refer to the connection procedure and miscellaneous section in the LTU software’s online help.	Refer to the connection procedure and miscellaneous section in the LTU software’s online help.	Refer to the connection procedure and miscellaneous section in the LTU software’s online help.

NOTE: EcoStruxure Power Commission Software and Local Test Utility Software can be downloaded from the Schneider Electric website (www.SE.com).

Zone Selective Interlocking Test

1	To perform the ZSI test: use a USB cable to connect the PC to the MicroLogic X control unit of the downstream circuit breaker. NOTE: For the downstream breaker other than MasterPacT MTZ , refer to Zone Selective Interlocking Test Necessary Tools for Zone Selective Interlocking test tools and test procedure reference documents.
2	On the PC, open the EcoStruxure Power Commission software and click on “Connect to device directly” (A). This will allow the user access to the MasterPacT MTZ circuit breaker through the commissioning tool.
3	In order to perform the test, add upstream circuit breakers to the project. Click on “Devices” (B) to add upstream breaker(s). NOTE: To perform the ZSI test and to generate the project report with the test details, you must have downstream and upstream circuit breakers in the same EPC project.
4	To check zone-selective interlocking (ZSI) operation between the USB-connected circuit breaker (step 3 above), and one or more upstream ZSI-connected circuit breakers that are connected to the same communications network, connect the PC to the communications network using an Ethernet cable. Auto-discover the devices and select the ZSI connected devices (C). NOTE: To discover circuit breakers that are connected through IFM communications modules, add the Modbus device ID for the connected IFE gateway IP address. OR Click “ADD MANUALLY” (D) to add one or more devices by entering the IP address (E) and the Modbus device ID if the circuit breakers are connected through IFM communication. NOTE: Range of the IP address can also be used (for example, 10.179.192.110–120). Click “FIND DEVICES”. (F). This displays the Devices List with devices discovered in the TCP/IP network. NOTE: If the circuit breakers are on a different network, then connect the upstream circuit breaker directly through USB and search for the device via the USB serial.
5	Select the upstream circuit breakers to be tested (G) and click “ADD DEVICES” (H) to add them to the project.
6	Click “CONNECT TO DEVICE” (I) on the device page of the downstream circuit breaker to connect directly through USB.
7	NOTE: For the upstream device, the tsd and tg tripping delays must not be set to zero because this would make selectivity impossible. Select the “Zone Selective Interlocking Test” option in the device view (J).
8	Select the upstream circuit breaker/breakers (K) and click “RUN TEST” (L).
9	The password screen will appear. Enter the password (M) and click on “CONTINUE” (N). NOTE: The default password is "0000".
10	Check if the test has passed. To determine if the test has passed, check if the Isd/Ii and Ig LEDs on the control unit of the upstream circuit breakers are blinking red.
11	If the test passed click the check icon (O) If the test did not pass click the cross icon (P) RESULT: Icon selected is highlighted. Click “END TEST” (Q).
12	Click “CONFIRM” (R) to proceed with “END TEST”.
13	Click “CLOSE” (S).
14	Project report can be obtained from the Reports option in Device view.
15	The Zone-Selective Interlocking (ZSI) test verifies field wiring between multiple circuit breakers connected in a ZSI system. A primary injection test must be done to test the performance of the circuit breaker’s ZSI function.