Synchroscope meter SD-96-3
A synchroscope meter is an essential device used in power systems to align or synchronize the frequency, phase, and voltage of a generator with that of an existing power grid or another generator. Synchronization is a critical process in electrical systems, particularly in industries, power plants, and facilities with standby or backup power systems, ensuring a smooth transition and stable integration of power sources without causing surges or interruptions.
The SD-96-3 Synchroscope Meter is an advanced digital panel meter designed to measure and display phase and frequency differences between two power sources—typically a generator and the main grid system. This synchroscope meter ensures a safe and efficient synchronization process, allowing operators to connect two sources only when conditions are ideal. Here’s a breakdown of its main features:
Key Specifications:
Voltage Range: AC 57.7V, 100V, 220V, 380V
Accuracy: Class 2.5 for voltage, with a 10° electric angle
Overload Capacity: Rated at 1.2 times the standard load for continuous operation
Frequency: Operates effectively within a 45-65 Hz range
Display: Equipped with a high-brightness LED display, enabling clear visibility of synchronization status
Functional Details:
The meter displays phase difference and frequency difference, showing rotation on the LED screen when the grid and generator’s frequency and voltage are closely matched. When synchronization conditions are met, a “SYNC” indicator activates, allowing the grid connection to be safely closed.
Operational Conditions:
Temperature Range: Operates from -10°C to +55°C, with storage capabilities from -25°C to +70°C
Humidity Tolerance: Supports up to 93% relative humidity in non-corrosive environments
Safety Features: Includes high insulation resistance (>100 MΩ) and can withstand AC voltages exceeding 2000V
EMC Compliance:
This meter offers robust resistance against electromagnetic interference, featuring Level 4 protection for ESD and surge, and Level 3 for RF and EFT.
This synchroscope meter by Eutroniks combines precision and safety, making it ideal for industrial applications that require reliable synchronization of power systems.
Functions of a Synchroscope Meter
- Phase Difference Measurement: Synchroscope meters display the phase difference between the generator and the grid. This is shown through a rotating LED indicator that slows as the phases approach alignment, providing real-time feedback to operators on when the sources are in sync.
- Frequency Matching: The meter also indicates frequency differences, helping ensure that the frequency of the generator closely matches that of the main power source. Synchronizing these frequencies prevents potential equipment damage and power quality issues.
- Voltage Matching: Some synchroscope meters, such as the SD-96-3, can also display voltage levels, which is critical for a smooth grid connection. The meter signals when voltage conditions are appropriate for connection by activating a “SYNC” indicator.
What a Synchroscope Meter Can Do
A synchroscope meter provides operators with a visual confirmation that conditions are safe for connecting two sources. When the meter’s LED rotation slows and the “SYNC” indicator lights up, operators know that:
- The generator and grid frequencies match.
- The phase angles are aligned.
- Voltage levels are within the desired range.
- By ensuring these conditions, the synchroscope meter minimizes risks of electrical instability, equipment damage, and unsafe conditions during synchronization. This functionality makes it invaluable in applications where continuous, reliable power is necessary, from hospitals and data centers to industrial plants and renewable energy systems.