Solutions   for   Protecting   andManaging   the   Electrical   Network

GENERATOR   PROTECTION

Relays for the protection of synchronous and asynchronous generators

Performances of a generator can be affected by faults in the device as well as by outside perturbations on the supply network it is connected to.
CEE protections are designed to react as efficiently in the first and in the second case. They ensure protection for synchronous and asynchronous generators connected on three phase networks and moved by any type of machines: steam, hydraulic or gas turbine, diesel or gas engine.
Their protection functions and measurement functionalities make them appropriate for machine-generator groups from a few hundred kVA to tens of MVA.

Below the list of products dedicated to the protection of generators.

  Device Series ANSI Description
NP G915 NP.900 50/51, 50N/51N, 67, 67N, 50H/51H/68H, 46R/46L/46, 87N, 59, 27, 59P/27P/47, 59N, 81O/81U, 81R, 40, 51V, 64S, 32/37/32R, 49M, 21, 24, 78, 50BF/52BF, 60, 74TC, 25 Enhanced generator protection IED with IEC 61850 protocol
NP T916 NP 900 87T, 87N, 49T, 50/51, 50N/51N, 50H/51H/68H, 46R/46L/46, 50BF/52BF, 49L, 74TC, 86 Differential protection IED
with IEC 61850 protocol
NPG800 NP.800 21, 24, 27, 32, 37, 40, 46, 49, 50, 51, 50V, 51V, 59, 59N, 64, 81, 50BF, 74TC, 86 Multi function generator protection
NPG800R NP.800 R 21, 24, 27, 32, 37, 40, 46, 49, 50, 51, 50V, 51V, 59, 59N, 64, 81, 50BF, 74TC, 86 Multi function generator protection
NPW800 NP.800 32, 37, 27, 59, 59N, 55, 81, 86, 74TC, BF Multi function power, voltage and frequency protection
NPW800R NP.800 R 32, 37, 27, 59, 59N, 55, 81, 86, 74TC, BF Multi function power, voltage and frequency protection
DMS 7001 PROCOM 87G Digital differential protection relay
GMS 7001 PROCOM 49, 46, 40, 21, 51, 59, 24, 27, 81, 32, 59G (solo GMS, GMSV), 64 (solo GMSH) Multi function generator protection
DTM 7033 STATIC 87G Differential protection relay
FTT 7111 STATIC 24 Overfluxing relay
HDG 7020 STATIC 81 Over and under frequency relay
IAG 7034 STATIC 87 Three phase high impedance differential protection
ITI 7521 STATIC 46 Alternator negative sequence protective relay
ITV 7x66 STATIC 51V Voltage restrained overcurrent protection
PTG 7000 STATIC 32, 37 Over and under power protection
STEP 7000 STATIC 26 Temperature supervision relay
TTE 7000 STATIC 64R Rotor earth fault relay
TTGB 7031 STATIC 60 Voltage balance relay
WTG 7000 STATIC 32P, 37P, 32Q, 37Q Active or reactive power relay
YTM 7111 STATIC 40 Loss of field relay