ABB SYNCHROTACT ® 5 synchronous devices

ABB SYNCHROTACT ®  5 synchronous devices

Application

SYNCHROTACT® 5 is the fifth generation of synchronizing equipment produced by ABB. SYNCHROTACT products are used for automatic synchronization of generators with power lines and for paralleling of synchronous lines. They are designed for fully automatic operation by dualchannel or single-channel systems.

Synchronizing equipment is used in power stations where a generator needs to be paralleled with a power line or in substations to parallel two synchronous lines. Power circuit breakers can only be closed if voltage at both ends is synchronous. Otherwise it will cause a disturbance in the power network, trip the breaker, shock the generator and unit transformer. In extreme cases, it can damage both.

SYNCHROTACT 5 guarantees a safe and reliable synchronization as a monitoring element for manual paralleling or as an independent fully-automatic synchronizing unit.

Safety and Availability

Thanks to its flexible design, SYNCHROTACT 5 can be used in many different configurations in order to ensure maximum safety and availability.

Definition

In synchronizing, the term “dual channel” applies to a configuration of two channels in series, where one channel blocks the faulty operation of the other. This configuration increases the safety of operation.

The term “redundancy” applies to a configuration of two devices in parallel. If one fails, the other one can take over the function. This configuration increases the availability of the synchronizing system.

Maximum safety in automatic and manual operation

The first requirement during synchronizing process is the safety of the generator and the network.

The safe automatic synchronization is guaranteed by a compact dual-channel system including two devices with independent hardware and software, which are connected in series (Fig. 4). The first channel performs the automatic synchronization and the other channel implements independent monitoring (Synchrocheck) of the first one. The hardware and software of each channel are designed by different development engineers using different microprocessors to protect the operation from any possible systematic failure.

The safe manual synchronization is ensured by a monitoring device (Synchrocheck), which is in series with the manual paralleling switch (Fig. 5). An automatic synchronizer may also be used as Synchrocheck for manual synchronization.

Optimum availability

The family range of SYNCHROTACT 5 offers various redundant configurations (Figures 6, 7 and 8) that ensure both maximum safety and full availability.

The dual channel, automatic channel and single monitoring channel (Synchrocheck) systems are each provided in one casing. This also applies to the redundant dual-channel system including interconnection wiring.

Functionality and Types

SYNCHROTACT 5 utilizes state-of-the-art hardware and software technology, which includes a fundamentally improved service and maintenance tool.

Special features

One device can store up to seven sets of parameters for seven different paralleling points

Freely configurable digital inputs and outputs •

Operating with rated frequencies 50 Hz, 60 Hz and 16 ²/ ³ Hz

For retrofit of previous SYNCHROTACT systems or • synchronization units of other manufacturers

Lower engineering costs

Output contacts can carry higher currents, thus fewer auxiliary relays required; all I/Os are isolated

Separate power supply unit is not required

Prefabricated unit is available for the selection of several paralleling points (SYN 5500)

Reduced cabling due to integration in a bus control system (IEC 61850, MODBUS, Profibus etc.)

Fast commissioning

User-friendly SynView software for simple and fast • commissioning

SynView software recommends parameter values and indicates min/max/default values for each parameter

The system includes an intelligent program, which after • interaction with the generator can recommend values for parameters that are dependent on the power system’s circuit breaker, voltage regulator and speed governor

SYNCHROTACT 5 commissioning can also be comfortably performed without a PC, using the controls on the front panel of the casing

Easy plant control integration, including IEC 61850

SYNCHROTACT 5 can be easily integrated in a modern bus control system. The communication interface supports IEC 61850 and the protocols MODBUS RTU, Profibus DP or LON-Bus.

At the same time, as a safety-relevant component, the synchronizing device remains an independent and protected module within the system.

Less travelling costs thanks to remote servicing

Another interface is provided for remote servicing. SYNCHROTACT 5 gets its own IP address, and communication is done via Ethernet interface with TCP/IP protocol. Thus SynView software can directly access the device via internet. The access can be switched on and off on the rear plate of the device.

| Type | Description | | SYN 5100 | Simple Synchrocheck | | SYN 5200 | Synchrocheck with advanced functionality | | SYN 5201 | Automatic single-channel synchronizing device with frequency and voltage adjustment | | SYN 5202 | Automatic dual-channel synchronizing system with Synchrocheck in series as second channel | | SYN 5302 | Redundant automatic dual-channel synchronizing system | | SYN 5500 | Auxiliary device for connection of several paralleling points |