Poznámky redaktora
Every operational requirement now met thanks the different performance levels the new relays and the additional odules that can
be fitted inside them (PR120/V, PR120/K, PR120/D-M, PR120/D-BT).
13. Protection releases General notes
Emax, the range ABB air circuit-breakers, now has new range electronic relays. with PR120/D-M module,
4.5%) and numerous other functions. PR121 with serial link for separate PR021/K and HMI030 module. Cause trip memorized even self-powered mode (all relays). Input can combined with actions selectable the user (with PR120/K). Relay powered even with the circuit-breaker open, using the busbar voltages (with PR120/V).
The new protection releases integrate all the functions their predecessors, adding new and interesting technical features that are useful for
satisfying every current and future system installation need. Double protection (PR123). Analysis the 40th harmonic. Wireless Bluetooth connection PDA and/or (with PR120/D-BT BT030).
7. Freely available software for relay testing and maintenance.
The main features and improvements the new relay PR12x with respect the earlier PR11x are (depending the combination relay-
modules):
1.
11.
6.
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. Continuous control the connection the current sensors and trip coil (all relays). Four power outputs fully-configurable the customer terms status, delayand type (with PR120/K).
8.
2.
15.
Notes:
1. High current reading accuracy (1.
3.
17.
Model 2234 Apparatus Scale
L 2778
Doc-Na 1SDH000460R0002
Page No. Extended neutral selection.
10.
F tio PR121 PR122 PR123
C urrent ctio (L, S
A dditional protections (U, OT) S
Voltage protections (UV, OV, RV, RP, UF, OF) <4> S
O ther protections (D, S2, Double protection S
Harm onics analysis S
Tem perature protection S
MCR protection S
Therm ory S
Local bus separate ilia its S
W ire ica tio (RS485) <3> <3>
Radio com unication (wireless Bluetooth) I1) I1,2) I1,2)
Data Logger S
C patibility ith SD.
16.
4. New residual-current function (Rc). with separate BT030 unit (for tem porary connections),
2.11.Testbus S
C patibility ith PR010/T S
Dual setting S
PR120/V easuring (internal voltages module) S
PR120/K Signalling (internal signalling module) O
PR120/D-M Com (internal communication module) O
PR120/D-BT L-Com (internal Bluetooth communication module) O
R sid rre tio O
PR021/K (separate signalling unit) O
HMI030 (separate graphics interface) O
PR030/B (separate power supply unit) S
BT030 (separate Bluetooth communication unit) O
Key:
S standard function/unit,
O optional function/unit,
- function/unit unavailable. Date and tim "real tim (all relays).
12.
These are called PR121, PR122 and PR123, and they substitute the previous range PR111, PR112 and PR113.
9. Double protection function, with simultaneous reading from two sensors (PR123 Restricted Earth fault).
14. with internal PR120/D-BT module,
3.Pocket S
C patibility ith SD.
5. High-performance data logger with analogue signals and digital signals, which can synchronized with hundreds events/situations
of the user's choice. with PR120/V module.
A table can best illustrate the technical features and the mix and atchability the three relays. The PR120/V odule for measuring line voltages 690 integrated the relay, making separate voltage transformer unnecessary
