ERL L-PRO 4000, User Manual

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7 Acceptance/Protection Function Test Guide
7-38 L-PRO 4000 User Manual D02706R02.30
51 Timing Test
1. Monitor (Timer Stop) on Output Contact 11.
2. Set timer start from single-phase 0.0 A to 6.00 A transition (this equates to
4x pickup).
3. Inject fault.
Observe Relay Target: “51 Trip on A”
51 Directional Test
Settings
• 51 Settings as above
• Line Angle = 80

(i.e. current lags voltage by 80

)
Note: Operating Range = ± 90

from line angle
Figure 7.27: Directional Element Logic
Time Delay
(34)
TMS B
A
I
multiple
 
p
1 –
------------------------------------- +

=
0.5 0.00
13.5
4
1
1 –
-------------- +

0.5 0.00 13.5
3
---------- +

2.25 s = = =
FORWARD
REVERSE
Vpos Memory
ILpos
59 Vpos Main (2 volts RMS fixed)
50 ILpos (4% I nominal RMS fixed)
Non-directional
51P Reverse
51P Forward
Non-directional
50P Reverse
50P Forward
Non-directional
51N Reverse
51N Forward
Non-directional
50N Reverse
50N Forward
Non-directional
46-51 Reverse
46-51 Forward
46-50 Reverse
46-50 Forward
51P directional control
50P directional control
50N directional control
51N directional control
46-51 directional control
46-50 directional control
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
Non-directional
Non-directional