Product Description
Basler BE1-25A, style number BE125AA2F5V3D0, is an Automatic Synchronizer manufactured by Basler Electric for generator paralleling control. A2 stands for voltage acceptance module, F5 for frequency matching module, V3 for voltage matching module, D0 means no dead-bus module. It continuously monitors voltage, frequency and phase angle of generator and bus, automatically adjusts generator speed and voltage. When synchronizing conditions are met, it outputs breaker closing command. Settings are configured via front panel thumbwheel switches with LED status indicators. It features low burden PT sensing circuit, widely used for generator-to-bus paralleling and serves as classic spare part for power plant protection & synchronizing systems.
Specifications
| Item | Specification |
|---|---|
| Model | BE1-25A, Style No. BE125AA2F5V3D0 |
| Product Type | Automatic Synchronizer |
| Option Modules | A2 Voltage Acceptance; F5 Frequency Matching; V3 Voltage Matching; D0 No Dead Bus Module |
| Sensed Signals | Voltage, Frequency, Phase Angle (single-phase sensing) |
| Adjustable Phase Angle Range | 1°~99° |
| Time Delay Range | 0.1~99s |
| Sensing Input Voltage | 80~135VAC, 50/60Hz |
| Output Contacts | Passive relay contacts, 5A@250VAC |
| Power Supply | AC/DC universal (depends on variant) |
| Mounting | Panel mount, S1 case |
| Operating Temperature | -20℃ ~ +60℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Certifications | UL, IEEE C37.90, CE |
| Weight | Approx. 6.2kg |
| Features | Low PT burden, local front-panel setting, built-in test circuit, LED status indication |
Application
- Thermal & hydro power plants: Automatic paralleling of steam / hydro generators, generator-to-bus breaker closing.
- Gas power stations & captive power plants: Paralleling of multiple generators and bus-to-bus interconnection.
- Oil, gas and chemical on-site power stations: Auto switch of backup generators to meet grid synchronizing safety requirements.
- Retrofit of legacy power plant synchronizing panels and replacement of faulty synchronizers to avoid damage caused by out-of-phase closing.
Series Models
- BE1-25: Sync-check relay (manual synchronism supervision, non-automatic)
- BE1-25A-A1F5V1D1: Auto synchronizer with A1, F5, V1, D1 dead bus module
- BE1-25A-A2F5V2D1: A2, F5, V2, D1 dead bus module
- BE1-25/79TR: Sync-check relay with auto-reclosing function
- BE1-87: Basler generator differential protection relay
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