This Speedtronic voltage monitor provides power quality monitoring for GE Mark VIe turbine systems. It measures AC and DC voltage levels across critical control circuits. Therefore, it detects undervoltage and overvoltage conditions before they damage equipment.
Physical and Monitoring Specifications
The GE IS200CVMBG1A IS200CVMBG1AAA measures 26.0 cm in length and 18.5 cm in width. Moreover, its board weight equals approximately 0.58 kg for rack mounting. A single 64-pin male connector links this board to the VME backplane. Additionally, the board integrates eight independent voltage monitoring channels.
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Full Model | IS200CVMBG1A IS200CVMBG1AAA |
| Category | Speedtronic Voltage Monitor |
| Dimensions (L x W) | 26.0 cm x 18.5 cm (10.24″ x 7.28″) |
| Board Weight | 0.58 kg (1.28 lbs) |
| Primary Interface | 1 x 64-pin Male Connector |
| Voltage Input Channels | 8 Independent Channels |
| AC Voltage Range | 0 to 300 VAC (47 to 63 Hz) |
| DC Voltage Range | 0 to 400 VDC |
| Measurement Accuracy | ±0.5% of Full Scale |
| Scan Rate | 10 ms per Channel (80 ms for All 8 Channels) |
| Undervoltage Threshold | Programmable (0 to 95% of Nominal) |
| Overvoltage Threshold | Programmable (105 to 120% of Nominal) |
| Response Time (Trip) | < 5 ms |
| Alarm Outputs | 8 Open-Collector (24 VDC, 50 mA) |
| On-Board Components | 8 Isolation Amplifiers + 8 ADC Channels + 1 Microcontroller + 8 Comparator ICs + 16 Protection Diodes + 1 Voltage Reference IC + 2 Memory Chips + 1 Temperature Sensor |
| Energy Storage | 4 x 100 µF Electrolytic Capacitors (450V) + 2 x 47 µF Tantalum (25V) |
| Operating Voltage | +5 VDC, +15 VDC, -15 VDC, and +24 VDC from Backplane |
| Isolation Rating | 2500 Vrms (Inputs to Backplane) |
| Operating Temperature | -20°C to +65°C (-4°F to +149°F) |
| Status Indicators | 8 Green LEDs (Channel Valid) + 1 Green LED (Power) + 1 Red LED (Fault) + 8 Yellow LEDs (Alarm Active) |
Voltage Monitoring and Protection Features
The GE IS200CVMBG1A IS200CVMBG1AAA monitors eight voltage channels for power quality. Specifically, it measures both AC power supplies and DC control voltages. In addition, programmable thresholds allow customization for different turbine systems. Moreover, the response time of under 5 milliseconds enables fast fault detection. Furthermore, each channel provides an open-collector alarm output for external annunciation. Consequently, this board protects sensitive control circuits from voltage abnormalities.
High-Voltage Isolation and Safety
Each voltage input channel includes an isolation amplifier for safety. For instance, the 2500 Vrms isolation protects the backplane from high-voltage faults. In addition, high-voltage capacitors filter the input signals for stable measurement. Furthermore, the board maintains 10 mm creepage distance between input and logic circuits. Moreover, protection diodes clamp input voltages to safe levels during transients. Thus, the GE IS200CVMBG1A IS200CVMBG1AAA safely monitors high-voltage circuits in turbine control systems.
Energy Storage and Measurement Integrity
This voltage monitor board stores energy using six onboard capacitors. Specifically, four high-voltage capacitors filter AC and DC input signals. In addition, two tantalum capacitors provide high-frequency noise suppression for measurement circuits. Moreover, these capacitors maintain voltage readings during brief input power dips. Furthermore, the 8-channel scan rate of 80 milliseconds provides timely fault detection. Therefore, this board ensures reliable voltage monitoring in electrically noisy turbine environments.
Installation and Diagnostic Indicators
Eighteen LED indicators provide operational status at a glance on this board. First, a green Power LED lights when the backplane supply voltages are present. Second, eight green Channel Valid LEDs illuminate when each channel receives a valid voltage signal. Third, eight yellow Alarm Active LEDs light when voltage exceeds programmed thresholds. Finally, a red Fault LED indicates hardware errors or input overrange conditions. Additionally, the board features six mounting holes for secure rack attachment. Thus, you can diagnose voltage monitor status instantly without external test equipment.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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