Basler Electric BE1-79M - Manual (Page 63)

9170100990 Rev N BE1-79M Maintenance 6-1
SECTION 6 • MAINTENANCE
General
BE1-79M Multiple Shot Reclosing Relay requires no preventive maintenance other than a periodic opera-
tional test (refer to Section 5, Tests and Adjustments, for operational test procedure). If factory repair is
desired, contact the Customer Service Department of the Power Systems Group, Basler Electric, for a
return authorization number prior to shipping.
Storage
This device contains long-life electrolytic capacitors. For devices that are not in service (spares in sto-
rage), the life of these capacitors can be maximized by energizing the device for 30 minutes once per
year.
Test Plug
Test plug (Basler P/N 10095) provides a quick, easy method of testing relays without removing them from
the case. The test plug is simply substituted for the connection plug. This provides access to the external
stud connections as well as to the internal circuitry.
The test plug consists of a black and red phenolic molding with twenty electrically separated contact
fingers connected to ten coaxial binding posts. The ten fingers on the black side are connected to the
inner binding posts (black thumbnuts) and tap into the relay internal circuitry. The ten fingers on the red
side of the test plug are connected to the outer binding posts (red thumbnuts) and to the relay case
terminals.
When testing circuits connected to the bottom set of case terminals, the test plug is inserted with the
numbers 1 through 10 facing up. When using the test plug in the upper part of the relay, the numbers 11
through 20 are face up. It is impossible, due to the construction of the test plug, to insert it with the wrong
orientation.