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Enter J
Protection Unit^ 1
Protection Unit Nr. The alarm message (100%
wear, "alarm" LED lighting up) indicates that necessary check the state contact wear.
The prealarm message (wear 80%, "warning" LED lighting up) indicates that the wear has reached highvalue.0 ^
Again the Measurements menu, you can view the percentage contact wear, which indication the electrical life the electrical contacts
in the circuit-breaker.
Indication for protection tripped. The following example the information provided:
■*— Number openings due the protections.
A larm Led (red)
• Presence overload one more phases with current values >1.
1 efinition and sig the 122/P unit
1 tic ls
S lin rip tio n
W arning Led (fixed yellow
light)
• The prealarm threshold has been exceeded; one more phases with current values the range
0.9xI1< 1.3 I1..
In any case, functionality the relay way modified the presence the wear messages. The data relating the last trips are stored the unit's memory.02
15Feb2004
L Protection
I1: 625A I3: 623A
I2: 617A >10.
_ Value the currents interrupted phases (L1, L2, L3), neutral (Ne) and Ground (if has been tripped)..tio enu
The Information Menu enables you view the data relating the protection unit and the type circuit-breaker..2 Electrical signals
K51/p1.
Information remains available for hours with the relay de-energized.
K51/p1.
Last Trip N.02
Circuit Breaker
Protection Unit ------------------------ ►
ESC
+ Enter J
Circuit Breake^ I
Nr.p4 Programmable electrical signals the PR120/K module installed and there auxiliary power supply. :
Device E1B800
RatedCurr.
W arning Led (yellow 0..
The percentage wear depends the number openings carried out the circuit-breaker and theabsolute current interrupted during
each them.05 1.p8 Programmable electric signals the PR021/K unit installed and there auxiliary power supply.
13.
• Presence, between two three phases, unbalance above the value programmed for the "U"
protection, with protection trip disabled;
• Presence distorted wave form with form factor 2. With auxiliary
power supply, the information shown immediately the display without the need press the Test" key and remains displayed indefinitely
until you press the key.3 (timing protection "L")
(on the depends the selection made; for instance, 200% the values are doubled)*;
• Timing progress for protection function S;
• Timing progress for protection function G;
• Timing progress for the voltage (UV, OV, RV), frequency (OF, UF) protection functions;
• Timing progress for the reverse active power protection function (RP);
• Timing the case unbalance between the phases (protection above the value set the
configuration with protection trip set on;
• Contact wear 100%;
• Rating Plug disconnected;
• Trip Coil (TC) disconnected;
• Key plug error;
• Current sensors disconnected;
• Installation error.5Hz) Relay's internal temperature exceeding WARNING threshold.
Model 2234 Apparatus Scale
L 2778
Doc No- 2
Page No. 630 A
Installation Jan 00, 2000
Maintenance Jan 00, 2000
1 tio the trip and data
The PR122/P unit saves all the information relating the type protection tripped, the opening data, the date and time. By
connecting PR030/B and PR010/T battery unit BT030 wireless communication unit, you can retrieve the information relating the last 20
trips recorded.6. 00000000000ABB SACE
Device PR122/P
Version LSIG
Normative IEC
Software P1.
W arning Led (yellow 2Hz) Relay's internal temperature exceeding ALARM threshold.
Pressing the Test" key enables resetting the activated contacts.
Access view the opening data via the Historicals submenu the Measurements menu.1;
• Contact wear greater than 80% (and less than 100%);
•WARNING Threshold exceeded;
• Circuit-breaker state error;
• Frequency out range;
• Configuration error;
• Settings inconsistency.
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* The IEC 60947-2 Standard defines the timing threshold for current: 1.05xI1(on the depends the selection made; for instance, 50% the values are halved). Using the Test" key
makes the release show all these data directly the display. There need for auxiliary power supply for this function
