Commissioning; Preconditions; Commissioning Procedure; Overall Procedure - ABB RELION REB500 Commissioning Manual

1MRK 505 401-UEN B
Section 3
3.1

Preconditions

It is assumed that the REB500 protection system is already installed and all input and output
signals that have been configured are also wired and the optical fiber cables are run and
tested.
It must also be assumed that the busbars or sections of them are in operation and that circuit-
breakers and isolators are in the process of being installed or maintained.
The commissioning engineer requires the operating instructions and the station diagrams
prepared by the respective engineering department.
The protection system may only be commissioned by trained commissioning personnel.
3.2

Commissioning procedure

3.2.1

Overall procedure

Checks prior to energizing on the IED
1. Record the equipment data
2. Visually inspect for transport damage
3. Visually inspect the external wiring and cables
4. Check the grounding of cubicles and other units
5. Check the auxiliary DC battery supply
6. Check the settings
7. Check the CT circuits Polarity, ratio and wiring
8. Check the VT circuits
Distributed busbar protection REB500
Commissioning manual

Commissioning

The greatest care must be taken when testing a busbar protection system on
busbars in operation, as the consequences of unexpected operation in due
process of the commissioning can be extremely serious.
The REB500 protection system is equipped with an extensive, continuous self-
supervision and diagnosis feature. All functions are constantly monitored by
the system software. The overall system has been extensively tested by ABB
before releasing the product. It is therefore not necessary to re-test the
internal protection algorithm by secondary injection.
This manual is therefore restricted to verifying the correct connection to the
primary process.
The following overall procedure has proven as best practice. Some items listed
might not be applicable depending on the substation architecture.
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Section 3
Commissioning
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