Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SYN5201A-Z V217 |
| ABB Part Number | 3BHB006714R0217 |
| Manufacturer | ABB |
| Product Series | SYNCHROTACT 5 |
| Product Type | Automatic Single-Channel Synchronizing Unit |
| Main Function | Generator/grid synchronization and paralleling |
| Measuring Inputs | U1, U2 |
| Nominal Measuring Voltage | 50–130 VAC |
| Permissible Measuring Voltage | 0–1.3 × Un |
| Nominal Frequency | 16⅔ / 50 / 60 Hz |
| Frequency Input Range | 10–100 Hz |
| Phase-Angle Matching Range | −179° to +180° |
| Slip Measurement Range | 0–50% |
| Acceleration Measurement | 0–10% |
| Paralleling Time | 0–1 second |
| Auxiliary Supply | 24–250 VDC; 100–230 VAC |
| Ambient Temperature | +5 to +70°C |
| System Configuration | Single-channel |
| Typical Application | Generator-to-grid synchronization / synchronous-line paralleling |
The voltage, frequency, angle, slip, acceleration, paralleling-time, auxiliary-supply, and ambient-temperature figures above are supported by available ABB-associated product records.
Procurement note: Do not automatically substitute another SYN5201A-Z variant. ABB variants such as V217, V271, and V277 carry different order numbers, and the installed application’s wiring and configuration should be checked against the complete part number.
Application Scenarios & Pain Points
A synchronizer sits at the point where control logic meets real electrical hardware. If the phase relationship is wrong when the breaker closes, the problem is no longer just a PLC alarm—it can become a generator and switchgear event.
- Generator-to-grid synchronization: The SYN5201A-Z compares the generator and bus conditions before automatic breaker closing, making it suitable for conventional generator paralleling applications.
- Power-station generator control: SYNCHROTACT 5 equipment is designed for automatic synchronization in power-generation installations, including single-channel configurations.
- Synchronous-line paralleling: The same synchronizing architecture can be used when two electrically compatible synchronous lines must be paralleled under controlled conditions.
- Legacy generator-control replacement: Useful where an existing SYNCHROTACT 5 installation remains in service and the maintenance objective is replacement of one failed synchronizing unit rather than redesigning the complete breaker-control circuit.
Field note: Before removing the old unit, photograph every terminal and record the configured synchronization parameters. A replacement with the correct part number can still produce an incorrect result if the original voltage transformer ratios, breaker closing time, slip settings, or lead-angle parameters are not restored.
SYN5201A-Z
Related Products
- SYNCHROTACT 5 — The product family containing SYN5201A-Z. It provides the broader automatic synchronization architecture used for generator and line paralleling applications.
- SYN5200A-Z — Related SYNCHROTACT synchronizing configuration. It should be considered when reviewing alternative system architectures, not as an automatic drop-in replacement.
- SYN5202 — Dual-channel SYNCHROTACT configuration. It provides independent synchronizing channels where additional availability or monitoring is required; the channel architecture differs from the single-channel SYN5201A-Z.
- SYN5302 — Higher-level dual-channel configuration using two dual-channel systems. It is suited to applications requiring a more redundant synchronization arrangement rather than a one-for-one SYN5201A-Z replacement.
- V271 / 3BHB006714R0271 — Closely related variant. Same basic synchronizing function, but a different ABB order number and variant designation; verify the application before substitution.
- V277 / 3BHB006714R0277 — Another variant of the single-channel family. It can be relevant when replacing a different installed variant, but should not be assumed equivalent to V217 without documentation.
- 3BHB006713R0217 — Associated with the SYNCHROTACT 5 family and a related synchronization configuration. It is useful when reviewing a complete synchronizer installation, though it is not the same order number as 3BHB006714R0217.
- SYNCHROTACT 6 — Later ABB synchronization generation. It may be considered for modernization, but migration involves wiring, parameter-set, interface, and application-engineering checks rather than simple card replacement.
The Engineer’s Guide: Field Pitfalls to Avoid
Warning 1 — Do not substitute V217, V271, and V277 by appearance alone.
The family contains multiple variants with different ABB order numbers. The available records explicitly distinguish V217 from V271 and V277.
How to avoid it: Match + V217 + 3BHB006714R0217 against the original nameplate and project documentation.
Warning 2 — Verify PT/VT measurement scaling before commissioning.
The documented measuring-input range is 50–130 VAC. If the voltage-transformer secondary arrangement or scaling is wrong, the synchronizer can calculate the wrong voltage relationship even though the unit itself is functioning normally.
How to avoid it: Confirm U1/U2 wiring, transformer ratios, nominal voltage settings, and frequency selection before enabling automatic closing.
Warning 3 — Breaker closing time must be treated as a real system parameter.
The synchronizer needs to account for the time between its closing command and actual breaker contact closure. A parameter mismatch can create a phase-angle error at the instant the contacts physically close.
How to avoid it: Record the existing breaker closing-time setting before replacement and verify the actual breaker response during commissioning. Do not assume the value from a different generator bay is appropriate.
Frequently Asked Questions (FAQ)
What is ABB 3BHB006714R0217?
It is an automatic single-channel synchronizing unit in ABB’s SYNCHROTACT 5 family. Its job is to determine when generator and bus conditions are suitable for controlled paralleling.
What voltage does the measure?
The documented nominal measuring-input range for U1 and U2 is 50–130 VAC, with a permissible range of 0–1.3 × Un.
The actual installation still needs to be checked against its VT/PT secondary arrangement.
Can V271 replace ?
Do not approve that substitution solely from the family name. Both are variants, but they have different ABB order numbers.
Before substitution, compare:
- Complete order number
- Variant designation
- Measuring-input configuration
- Auxiliary supply
- Parameter settings
- Wiring and terminal assignment
- Project documentation
What power supply does 3BHB006714R0217 require?
Available ABB-associated records specify 24–250 VDC or 100–230 VAC auxiliary supply.
For a field replacement, verify the actual cabinet supply before energizing the spare. Do not rely solely on a generic SYNCHROTACT family specification.
Is this a single-channel synchronizer?
Yes. is identified as an automatic single-channel synchronizing unit. SYN5202 and SYN5302 represent different multi-channel architectures.
That distinction matters when the original generator control scheme uses independent synchronizing channels or redundancy.
How should a refurbished be tested?
At minimum:
- Verify 3BHB006714R0217 / on the nameplate.
- Inspect terminal blocks and enclosure condition.
- Verify auxiliary supply operation.
- Confirm U1/U2 measurement channels.
- Check frequency measurement.
- Verify phase-angle measurement.
- Test synchronization logic with a controlled test source.
- Verify relay/closing-command outputs.
- Check parameter retention after power cycling.
- Record the final parameter set.
A power-on test alone is not sufficient for a synchronizer. The critical question is whether the unit makes the correct closing decision under controlled voltage, frequency, and phase-slip conditions.
What should I confirm before purchasing this ABB synchronizer?
Give the supplier the complete identification: , 3BHB006714R0217 rather than just “.”
Ask for the actual unit photographs, nameplate, revision information, condition, test procedure, warranty, and confirmed lead time. For a generator application, also verify whether the replacement is supplied with the required parameter configuration or whether your engineering team will reload it onsite.
