The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

IS200VTCCH1CBB MRP680489 Gas turbine card

8 tripping relays: controlled by the tripping unit 216DB61. In each case, one circuit is connected to terminals, which is made by two contacts in series.
16 signalling relays: controlled by the binary O/P unit 216AB61. The N/O contact of all the relays and the N/C contact of relays 1...4 are connected to terminals. The unit is supplied at 24 V DC and provision is made for redundant supplies. The location of the 216GD61 unit and its wiring diagram can be seen from Fig. 12.38.

Injection unit REX 010 The injection unit Type REX 010 provides the power supply for the injection transformer block Type REX 011. The injection transformer block generates the signals needed for the 100 % stator and rotor ground fault protection schemes. The signals all have the same waveform (see Fig. 2.21). The injection unit is installed in an REG 316 casing and therefore the mechanical and general data are the same as specified for the REG 316. Three versions of the injection unit with the designations U1, U2 and U3 are available for the following station battery voltages:Versions U2 and U3 operate with a DC/DC converter.

Controls and signals:

green LED READY: Auxiliary supply switched on
red LED OVERLOAD: The internal protection circuit has picked up and injection is interrupted.
yellow LED DISABLED: Injection is disabled on the switch on the frontplate or via the opto-coupler input. Only the green LED is lit during normal operation.
toggle switch ENABLE, DISABLE: Position 0 : Injection is enabled. Position 1 : Injection is disabled.

The frequency of the injection voltage which corresponds precisely to ¼ of the rated frequency of 50 Hz or 60 Hz can be selected by positioning a plug-in jumper on PCB 316AI61. In position X12 the frequency is then 12.5 Hz and in position X11 15.0 Hz.reset button RESET: This resets the protection circuit, which latches when it operates, and the red LED extinguishes. The protection circuit guards against excessive feedback from the generator and interrupts the injection for zerocrossing currents  5 A. The protection circuit will not reset, if the fault that caused it to pick up is still present. In such a case, switch off the supply and check the external wiring for short-circuits and open-circuits.
Opto-coupler input: This has the same function as the reset button and can also be used to disable injection. The latter occurs when the input is at logical '1' and resumes when it is returned to logical '0'.