Product Description
Product Details
- Manufacturer: BACHMANN
- Model/Part Number: GSP274
- Description: Grid measurement module
Key Features
-
Measurement Types:
- Current/Voltage Measurement
- True RMS measurement (includes harmonics)
- Frequency Measurement
- Active, Reactive, and Apparent Power Measurement
-
Measurement Method: True RMS (including harmonics)
-
Sampling Rate: 50 µs (20 kHz)
-
Measurement Interval:
- 50 Hz: 10 ms
- 60 Hz: 8.33 ms
Voltage Measurement
| Parameter | Specification |
|---|---|
| Number of Channels | 7 (Generator: L1, L2, L3, N / Grid: L1, L2, L3, N / Busbar Lx, Ly) |
| Maximum Rated Voltage | UL-L, RMS: 480 VAC UL-N, RMS: 277 VAC |
| Voltage Range | UL-L, RMS: 17.3 – 728 VAC UL-N, RMS: 10 – 420 VAC |
| Accuracy | ±0.1 % |
| Continuous Overload | UL-L, RMS: 675 VAC UL-N, RMS: 390 VAC |
| Short-Term Overload | UL-L, RMS: 1143 VAC (10x10 s, Interval 10 s) UL-N, RMS: 660 VAC (10x10 s, Interval 10 s) |
| Input Impedance | >2 MΩ |
Current Measurement
- Number of Channels: 4 (Generator: 3x, Generator star/neutral-point: X1)
- Accuracy: ±0.1 %
- Current Transformer Rated Current: 5 A
- Current Measuring Range: 0 – 10 AAC
- Continuous Overload: 10 AAC
- Short-Term Overload (5x1 s, interval 300 s): 100 AAC
Frequency Measurement
- Rated Frequency: 50 / 60 Hz
-
Reference Range:
- 50 Hz: 35 to 65 Hz
- 60 Hz: 45 to 75 Hz
- Accuracy: ±0.01 Hz
-
Measurement Interval:
- 50 Hz: 10 ms
- 60 Hz: 8.33 ms
- Frequency Change Measurement: Yes
- Maximum Frequency Change: ±1 Hz/s
Power Measurement
- Measured Values: Active (P), Reactive (Q), Apparent (S) Power per phase and as total
- Accuracy: ±0.2 %
- Calculation Method: DIN 40110-2, IEC61400-21
-
Measurement Interval:
- 50 Hz: 20 ms
- 60 Hz: 16.67 ms
Electrical Safety
| Parameter | Specification |
|---|---|
| Product Standard | IEC/EN61131-2 |
| Generic Standard | IEC/EN60664-1 |
| Pollution Degree | 2 |
| Overvoltage Category | 3 |
| Test Surge Voltage | 4 kV |
| Protection Class | 2 |
| Approvals / Certificates | CE, UL/cUL, CCC, Marine GL, DNV, LR, ABS, BV, BDEW:2008, FGW TR3:2011, FGW TR8:2011, VDE AR-N-4105:2011 |
Ambient Conditions
- Operating Temperature: -30 to +60 °C
- Relative Air Humidity: 5 to 95 % (no condensation)
- Storage Temperature: -40 to +85 °C
- Maximum Operating Height: 2,000 m above sea level (up to 4,500 m on request)
Power Supply
-
Backplane Power Supply:
- +5 V | ≤ 316 mA
- +15 V | ≤ 21 mA
- -15 V | ≤ 23 mA
- External Power Supply: 24 V | 110 mA
System Requirements
- Hardware: All M1 CPU families apart from ME203, SK1 backplane not required
- Software: M-Base 3.90 / SolutionCenter 1.90 or higher
Model Variants
- GSP274: Grid measurement, protection, and synchronization module; includes 7x In 480V, 4x In 5A, 4x In 24V, 4x Out 24V, 2x Out Relay 24/48V DC, 230V AC, U-, I-, P-, Q-, f-measurement, 4Q-energy metering, integrated monitoring/protection functions, harmonic analysis, integrated real-time data recorder (16 channels), and sequence of event log with real-time stamp.