Section 6—Available Test Equipment

Local current meters (catalog numbers ALAM and ALAMP) offer real-time current metering capabilities and, if the circuit breaker trips, the meters indicate the type of trip:

• Overload

• Short circuit

• Ground fault

The current meter provides a simple means of troubleshooting the cause of a trip, and comes installed in all full-function (LE, ME, NE, PE and SE) circuit breakers. The current meter provides on-line assistance with:

• Identifying overloaded or unbalanced phases

• Defining the level of ground-fault current flowing on the circuit

The ALAM kit is for use with all series of L-, M-, N- and S-frame MicroLogic electronic-trip circuit breakers. The ALAMP kit is for use on all series of P-frame MicroLogic Electronic-trip circuit breakers, and is different only because of the orientation of the trip unit cavity.

Memory reset modules (catalog numbers MTMB, MTM2 and MTM3) are used to reset the long-time memory on MicroLogic electronic-trip circuit breakers. This allows faster primary injection testing of the circuit breaker.

• The MTMB module is for use with MicroLogic Series B electronic-trip systems.

• The MTM3 module is for use with MicroLogic Series 3 trip systems

• The MTM2 module is for use with Series 2 SE electronic-trip circuit breakers.

Adapter plug kits (catalog numbers SEPITK1 and SEPITK2) use jumpers in certain terminals to properly connect the secondary sensing wiring in SE drawout construction circuit breakers. The SEPITK1 test kit is for use with Series 1 SED circuit breakers; the SEPITK2 test kit is for use with Series 2 and above SED circuit breakers.

The optional Universal Test Set (catalog number UST3) is a microprocessor-based system used to test all LE, LX, LXI, ME, MX, NE, NX, PE, PX and SE MicroLogic circuit breakers. This test set will thoroughly test each function of the trip unit. The Universal Test Set is a secondary injection tester and does not take current transformer tolerances into consideration.

The UTS3 test set includes:

• The test module for standard and full-function MicroLogic Series B trip systems

• A self-test module

• A power cord

• A ribbon cable

• An instruction manual

The Full-Function Test Kit is a microprocessor-based system used to test ComPact™ NSJ, and PowerPacT circuit breakers with MicroLogic electronic-trip units. The Full-Function Test Kit is a secondary injection tester and does not test the current transformers and connections.

The Full-Function Test Kit is designed to be used as a stand-alone test unit or in conjunction with a personal computer. The Full-Function Test Kit alone performs the following tests:

• Protection function verification (LSIG)

• Compliance with trip curve

• Electrical and mechanical tests of trip system

• Zone-selective interlocking tests

• Inhibition of ground-fault protection for use during primary injection testing

• Inhibition of thermal imaging for use during primary injection testing

• Supply control power to the trip unit to energize displays

The Hand-Held Test Kit is a small battery-powered unit. It is designed to provide convenient secondary injection tests on ComPact NSJ and PowerPacT circuit breakers with MicroLogic electronic-trip units. The Hand-Held Test Kit is powered by five 9 V batteries and can be used to do the following:

• Verify trip unit operation by tripping the circuit breaker with a secondary injection signal

• Supply control power to the trip unit to energize displays

• Inhibit thermal imaging for primary injection testing

• Inhibit ground-fault for primary injection testing

• Zone-selective interlocking testsOnly provides power to trip unit to indicate a ZSI signal was received. Will not initiate the command to send a ZSI restraint signal.*

Pocket Tester

The pocket tester connects to the MicroLogic trip unit test connector. It powers up the MicroLogic trip unit and the Ready LED. It supplies the screen, allows settings to be made using the keypad, and provides thermal memory inhibit functions.

The pocket tester runs off of two Alkaline AA batteries.

UTA Tester Module

The UTA Tester includes:

• configuration and maintenance module

• power supply (110–220 Vac / 50-60 Hz 24 Vdc - 1 A)

• special MicroLogic cable for connection to the trip-unit test connector

• standard USB cable

• standard RJ45 cable

• user manual

Included in the UTA Tester, the UTA Tester module tests MicroLogic trip unit operation and provides access to all parameters and settings. It connects to the MicroLogic trip unit test connector and can operate in two modes.

• Stand-alone mode to:

  • supply the MicroLogic trip unit with power and check operation using the Ready LED

  • Provides ground-fault inhibit and thermal memory inhibit

• PC mode, connected to a PC with a USB or Bluetooth link. This mode provides access to protection settings, alarm settings and readings of all indicators. Using the associated RSU software utility, it is possible to store, in a dedicated file for each device, all the data that can transferred to another device.

  This mode also offers operating-test functions:

  • check on trip time delay (trip curve)

  • check on non-tripping time (coordination)

  • check on ZSI function

  • alarm simulation

  • display of setting curves

  • display of currents

  • printing of test reports

  • optional Bluetooth link (to PC).