Overview
ASD100G integrates mimic diagram, HV live display with self-test and phase check, two electromagnetic lock outputs, and intelligent temperature/humidity control (one sensor, two heating outputs) for 3-35kV switchgear. RS485 communication enables remote monitoring. Ideal for substations and industrial plants needing live voltage indication and environmental control.
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Reliable Power & Communication
- AC/DC wide-range power supply
- Low power consumption <5VA
- RS485 Modbus-RTU communication
- Power-off alarm output
HV Live Display & Phase Check
- 3-phase live voltage indication
- Built-in self-test button
- External phase matching support
- Two electromagnetic lock outputs
Smart Temperature/Humidity Control
- One sensor with 4m cable
- Two independent heating outputs
- Forced heating mode
- Heating circuit fault alarm
Easy Installation & Durable
- Panel mounting, cut-out 112×172mm
- Compact size 120×180×35mm
- Wide operating temp -10~55°C
- MTBF ≥50,000 hours
Function
| Function | Description |
| Mimic Diagram | Dynamic LED display showing primary circuit components: breaker, disconnector, earthing switch, spring status. |
| HV Live Display | Indicates live voltage on each phase via LEDs; supports external phase matching (nuclear phase) via front test holes. |
| Self-test | Built-in button to test all live indication LEDs and lock relay operation. |
| Electromagnetic Lock | Two independent lock outputs controlled by live voltage; unlock when all phases dead. |
| Temp./Humidity Control | One external sensor (4m cable) measures environment; controls two heating outputs based on preset thresholds (set via communication). |
| Heating Circuit Alarm | Detects open circuit or overload of heating loads and generates alarm. |
| Power-off Alarm | Relay output closes upon auxiliary power loss for remote failure detection. |
| RS485 Communication | Modbus-RTU protocol, baud rate 2400-19200, for remote monitoring and parameter setting. |
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Specification
| Parameter | Value |
| Auxiliary Power | AC 85～265V or DC 100～300V |
| Power Consumption | ≤5 VA |
| Communication | RS485, Modbus-RTU, 2400-19200 bps |
| Temperature Measurement | ±1℃ |
| Humidity Measurement | ±3% RH |
| Operating Temperature | -10℃ ～ +55℃ |
| Relative Humidity | ≤95% (no condensation) |
| MTBF | ≥50,000 hours |
| Dimensions (W×H×D) | 120 mm × 180 mm × 35 mm |
| Panel Cut-out | 112 mm × 172 mm |
| Mounting | Panel flush mounting |
| Weight | Approx. 0.5 kg |
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FAQ
The ASD100G has test holes on the front panel for connecting an external phase comparator (threshold ≥60V). The phase comparator is not included and must be provided by the user.
The standard cable length is 4 meters. For longer lengths, please contact us before ordering.
Both heating outputs are relay contacts rated at AC 250V / 5A (resistive load), suitable for direct control of small to medium heaters.
ASD100G has no display; all temperature/humidity parameters must be set via the RS485 interface using Modbus-RTU protocol (see Chapter 3 of the manual for address table).
When auxiliary power fails, the internal alarm relay normally-closed contact closes, providing a power-loss signal for remote monitoring.
Summary
ASD100G combines status indication, HV live display, and climate control in one device. Wide-range power, low consumption, and RS485 communication ensure reliability and easy integration. Heating circuit fault and power-off alarms enhance safety. It simplifies panel design and improves equipment longevity.
