Testing Ied Operation; Preparing The Ied To Verify Settings - ABB REQ650 1.3 IEC Commissioning Manual

Table of Contents

1MRK 505 293-UEN B

Section 6

6.1

Preparing the IED to verify settings

If a test switch is included, start preparation by making the necessary connections to the test

switch. This means connecting the test equipment according to a specific and designated IED

terminal diagram.

Put the IED into the test mode to facilitate the test of individual functions and prevent

unwanted operation caused by other functions. The busbar differential protection is not

included in the test mode and is not prevented to operate during the test operations. The test

switch should then be connected to the IED.

Verify that analog input signals from the analog input module are measured and recorded

correctly by injecting currents and voltages required by the specific IED.

To make testing even more effective, use PCM600. PCM600 includes the Signal monitoring

tool, which is useful in reading the individual currents and voltages, their amplitudes and

phase angles. In addition, PCM600 contains the Disturbance handling tool. The content of

reports generated by the Disturbance handling tool can be configured which makes the work

more efficient. For example, the tool may be configured to only show time tagged events and

to exclude analog information and so on.

Check the disturbance report settings to ensure that the indications are correct.

For test functions and test and signal parameter names, see the technical manual. The correct

initiation of the disturbance recorder is made on start and/or release or trip from a function.

Also check that the wanted recordings of analog (real and calculated) and binary signals are

achieved.

The IEDs in the 650 series can have between 1 and 4 individual parameter setting groups

prepared with full sets of different parameters for all functions. The purpose of these groups

is to be able to handle different power system load conditions to optimize the parameters

settings of the different functions for these different power systems conditions (for example

summer/winter and day/night).

During testing, observe that the right testing method, that corresponds to the actual

parameters set in the activated parameter setting group, is used.

In the local HMI the sensitive directional earth fault protection SDEPSDE parameter group 4 is

active indicated by the * next to #4 and the test of the SDEPSDE must be performed according

to the instructions given for the setting

Set and configure the function(s) before testing. Most functions are highly flexible and permit

a choice of functional and tripping modes. The various modes are checked at the factory as

part of the design verification. In certain cases, only modes with a high probability of coming

into operation need to be checked when commissioned to verify the configuration and

settings.

Requirements for testing the function.

Breaker protection REQ650

Commissioning manual