59
6.
Spare parts
6.1.
Plug-in unit
The relay
’
s construction allows a spare part in form of a plug-in unit. The outage
time can therefore be reduced to a minimum in case the relay should fail.
In case of malfunction, please consult your relay supplier.
The spare plug-in unit to be used for a certain relay is suitable if at least the first 10
characters in the order number are identical with those in the order number of the
case.
To obtain identical functionality to those of the original product, all
characters in the order number, except for those indicating a spare part,
should match the ones in the order number of the case.
The relay features a built-in mechanical coding system which allows that a plug-in
unit with voltage or current measuring inputs only can be plugged into a
corresponding case. This helps to prevent dangerous situations from arising in case a
non-suitable plug-in unit is fitted into a relay case.
Forcing a non-suitable plug-in unit into a case breaks the relay and may
cause dangerous situations.
The plug-in unit is calibrated as a whole to achieve the best possible operation
accuracy and individual pieces of it should not be removed.
If the faulty plug-in unit is subject to guarantee and the fault is caused under
circumstances covered by the warranty conditions, it should be returned for repair.
Ordering of spare parts is done by using the same ordering system as for ordering a
new relay.
6.2.
Battery
The battery for real-time clock and non-volatile memory can be purchased in stores
specialized in electronic components.
Recommended battery manufacturers and types are:
*
Panasonic of type BR2032
1)
*
Rayovac of type BR2032
1)
Feeder Protection Relay
Operator's Manual - ANSI Version
REF 610
REF 610
1MRS755539
1)
Batteries of the recommended lithium BR-types cannot be recharged.
