Limit Counter L4Ufcnt; Completing The Test; Function Revision History; Current Harmonic Monitoring Chmmhai(Ithd) - Hitachi Relion RES670 Commissioning Manual

Phasor measurement unit
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1MRK 511 409-UUS Rev. K
During testing, the IED can be set when in test mode from PST. The functionality of the event reporting
during test mode is set in the Parameter Setting tool in PCM600.
Use event masks
Report no events
Report all events
In test mode, individual event blocks can be blocked from PCM600.
11.11.5

Limit counter L4UFCNT

The Limit counter function L4UFCNT can be tested by connecting a binary input to the counter and
applying pulses to the counter. The speed of the pulses must not exceed the cycle time of the function.
Normally the counter will be tested when testing the function that the counter is connected to, such as the
trip function. When the function is configured, test it together with the function that operates it. Trigger the
function and check that the counter result corresponds to the number of operations.
11.11.5.1

Completing the test

Continue to test another function or end the test by changing the Test mode setting to Off. Restore
connections and settings to their original values, if they were changed for testing purposes.
11.11.6

Function revision history

Document
revision
D
E
F
G
H
J
11.11.7

Current harmonic monitoring CHMMHAI(ITHD)

Prepare the IED for verification of settings outlined in Section
11.11.7.1

Verifying the signals and settings

The current can be injected using common test equipment.
Verifying the warning and alarm time limit of THD, WrnLimitTHD and tDelayAlmTHD
1.
Supply the IED with current at rated value.
2.
Apply harmonics at the numerical multiple of fundamental frequency along with the injected current
signal.
3.
Slowly increase the harmonic amplitudes until the THDWRN signal appears.
Phasor measurement unit RES670
Commissioning manual
Product
History
revision
2.2.3
-
2.2.3
-
2.2.4
-
2.2.4
-
2.2.4
-
2.2.5
Updated monitoring till 9
th
monitoring till 5
© 2017 - 2022 Hitachi Energy. All rights reserved
th
order current harmonics. Refer to document revision H for
order current harmonics.
"Preparing the IED to verify
Section 11
Testing functionality by secondary injection
GUID-7EBDC372-3407-4577-8B9A-6AB1758A1F34 v2
GUID-325F040B-BADC-4281-B965-9B7D6BFA3E15 v2
GUID-5883ADA7-549A-464B-AC60-082A50165A2B v1
GUID-692151F8-812B-4B32-AE86-E7A4E4B0101B v1
GUID-804F309E-B02F-4F6B-B0FC-2C7AE3F12DBA v2
settings".
GUID-026F1A4F-E9A8-43DC-87E1-0831E0123E50 v1
GUID-92992D84-BDAA-436F-9D2E-3770A29EF956 v1
143

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