DIGITAL SYNCHROSCOPE

SBS-2D

Function description

SBS-2D synchroscope is a high-tech designed product, there is no need to install synchronous controllers when using synchroscope so the cost of generators and machine control cabinet is reduced and the line is simplified. And what’s the most important, it improves the stability of generators and machine control cabinet

The phase difference can easily be displayed by LED light. There is 36 LED in a circle for this model

The functions of LED

Connection specification

Adjustment

Before debug the system, Generator speed control unit correctly makes the system operates steadily.

1. Before debugging , please disconnect terminal 13、14 and 15. It can test the system without real parallel running.
2. The LED of MAINS, GEN and DC POWER shall be lit when reset generator speed. We can make frequency difference within 0.1Hz as far as possible .Close the synchronous enable switch (ON/OFF) between speed controller and SBS-2D, and the auxiliary contact close. A positive 24V voltage add to terminal 5, the red ENABLED shall be lit. The SBS-2D will sync the generator to Mains. Then green SYNC shall be lit.
3. Rotate the GAIN potentiometer CW until instability develops. Gradually move the adjustment CCW until stability returns. Move the adjustment one division further CCW to insure stable performance.
4. Optimize the setting of GAIN.

Select one of the method below to quit synchronous system.:

1. Close the ON/OFF switch of SBS-2D.
2. Disconnect terminal 3 and 4 in the Bus-bar power.
3. Push the engine gun lightly on purpose.

After quit synchronous system, then adjust GAIN again. Repeat this step several times can make the system come to stable and synchronous condition in shortest time.

5.STABLITY   Adjustment

If necessary, regulation of the STABLITY CW could achieve stability performance quickly. Regulation of the STABLITY CCW could achieve reaction slowly but rather smooth-going.

6.PHASE ERROR    Adjustment

After system achieves synchronous, it is actual minor difference exist. Adjustment of PHASE ERROR to eliminate the small synchronous error. We also could use a adjusted Synchronoscope that bridge join terminal 1,2,3 and 4 to check synchronous difference.

7. BREAKER CLOSURE Adjustment

When system operate normally and synchronously, rotate the BREAKER CLOSURE adjustment CW until limiting position and then move gradually the adjustment CCW until BREAKER CLOSURE RELAY light. Move the adjustment further CCW again.

8. BREAKER CLOSURE USING

Reset the step 1, connect with terminal 13,14 and 15 and then the synchronoscope begin to start.

9. The final check

Start engine and let the system synchronization and machine, we can also make some regulation to the best place and let system smooth-going quickly.