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BE1-87G - Testing And Setting 5-1
CAUTION
To avoid false tripping on three phase units, upper connection plug must be in place
prior to inserting or removing lower connection plug.
SECTION 5 • TESTING AND SETTING
GENERAL
Proper operation of the relay may be confirmed by performing the operational test procedures in this Section.
In the event the relay is not to be installed immediately, store the relay in its original shipping carton in a moisture
and dust free environment.
RELAY OPERATING PRECAUTIONS
Before installation or operation of the relay, note the following precautions:
1. A minimum of 0.2 ampere in the output circuit is required to ensure operation of current
operated targets.
2. The relay is a solid-state device. If a wiring insulation test is required, remove the connection
plugs and withdraw the cradle from its case.
3. When the connection plugs are removed the relay is disconnected from the operating circuit and
will not provide system protection. Always be sure that external operating (monitored)
conditions are stable before removing a relay for inspection, test, or service.
4. Be sure the relay case is hard wired to earth ground using the ground terminal on the rear of
the unit. It is recommended to use a separate ground lead to the ground bus for each relay.
DIELECTRIC TEST
In accordance with and ANSI/IEEE C37.90, one minute dielectric (high potential) tests as follows.
All circuits to ground: 2121 Vdc
Input to output circuits: 1500 Vac or 2121 Vdc
EQUIPMENT REQUIRED
Because of the speed and sensitivity of this relay, it is necessary that the accuracy and stability of the test
equipment be appropriate to test the sensitivity switch settings. For example, this switch at the most sensitive
setting (0.1 ampere) is monitoring a current difference that is only 1% for a sensing input of 10 amperes.
Two Multi-Amp SSR-78, or one Doble F2500, or suitable substitute
Digital voltmeter accurate to within 1% or better
Digital ammeter accurate to within 1% or better
Variable AC/DC ()-250 V) power supply (operating power input)
DC power supply (for current operated targets)