SERVICE MANUAL R5888C
QUADRAMHO Chapter 5
Page 1 of 24
Section 1. GENERAL
The commissioning engineer should be supplied with all the required settings for
the relay; a chart is provided for this purpose in the application notes.
If all settings are not supplied, there are worked examples in the application notes
for guidance. (Addendum 1 provides guidance for zone reach setting
calculations).
Some specific information is given for using the ZFB distance test set but sufficient
general information is given to enable experienced commissioning engineers to
understand how to perform the tests using other suitable equipment.
An addendum on using the ZFB is included for those not familiar with the test set.
The importance of using dynamic testing is mentioned, although it may be
considered that sufficient testing of this type is done before the equipment is
despatched and it may not be really necessary for on-site tests. Some tests
described can only be carried out with dynamic testing.
Section 2. TEST EQUIPMENT REQUIRED
The Quadramho Accessory Kit 01 which contains:
2 heavy current test plugs.
1 monitor point box (25 way) with connecting plug.
1 conductive wrist strap and earthing lead.
2 module extractor tools.
2 anti-static conductive bags.
1 two tier extender card with edge connectors at 0.1 inch pitch centres.
(This is only required for problem analysis).
1 ZFB test set or alternative suitable equipment eg. Jodice F3–D.
1 Interval timer (one that can work off contacts or 24V levels and has a dwell
facility).
2 Multimeters (20,000 ohms per volt on dc range).
1 Variable auto transformer
capable of supplying
1 Variable resistor 0 – 200 ohms
relay rated current.
1 Double pole switch.
2 Single pole switches.
1 Phase rotation meter.
1 Phase angle meter (with appropriate current sensitivity for on load check).
1 Electronic insulation tester (If the commissioning engineer has to perform
insulation tests).
It may be useful to have light current leads with snap-on connectors
(4.8mm x 0.8mm cross section) on one end.
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