Products Description
Our oltc online monitoring system captures motor current, switching current, vibration, tap position, and operating states during each OLTC action. Stored waveforms and trends support mechanical and electrical condition analysis.
Technical Principle
Current, travel, vibration, coil, and auxiliary-contact signals are captured during each operation. The system aligns these waveforms in time and calculates operating time, speed, stroke, synchronism, coil behavior, and mechanism characteristics for condition assessment.
Product Features
The oltc online monitoring system synchronizes electrical, mechanical, and tap-position data for each switching event. High-input density supports a complete OLTC monitoring package in one host. Current and vibration sensors capture different fault signatures. Gigabit Ethernet and serial ports cover modern and legacy station integration.
Operating Conditions
The product shall be installed and operated within the ratings stated in the technical parameters. Key site requirements include: frequency. Keep the installation area clean, adequately ventilated, free from corrosive gas and severe vibration, and provide the specified grounding, clearance, and power quality.
Product Parameters
|
Parameter |
Details |
|
Host power |
100-240 VAC; device consumption ≤25 W |
|
Host size |
480×88.2 mm; 19-inch 2U |
|
Input capacity |
16 digital, 6 voltage, 6 current, 3×4-20 mA, and 1 vibration |
|
Serial interfaces |
Two RS485 Modbus RTU ports and one RS232 debug port |
|
Network interfaces |
Two RJ45 gigabit ports; Modbus TCP or IEC 61850 |
|
Current sensor |
0-20 A; 10 A/5 mA output; ±1%; 3 kV for 1 min |
|
Vibration range |
0-33 g |
|
Vibration frequency |
0.7-13000 Hz, ±10% |
|
Vibration resolution |
0.0002 g |
|
RS485 distance / rate |
Up to 1 km; 1200-9600 bit/s |
Product Advantages
- The oltc online monitoring system synchronizes electrical, mechanical, and tap-position data for each switching event.
- High-input density supports a complete OLTC monitoring package in one host.
- Current and vibration sensors capture different fault signatures.
- Gigabit Ethernet and serial ports cover modern and legacy station integration.
Main Applications
The oltc online monitoring system is used for on-load tap changers on power transformers and regulating transformers.
It supports utility substations, power plants, industrial grids, and transformer service programs.
The system assists waveform review, maintenance planning, and abnormal-operation warning.
Components
|
Part |
Function |
|
Monitoring host |
Synchronizes acquisition, storage, analysis, and communication. |
|
Current sensors |
Measure drive-motor and switching-current behavior. |
|
Vibration sensor |
Captures the mechanical signature of each operation. |
|
Position and state inputs |
Record tap position and auxiliary contact changes. |
FAQ
Q: What information is needed for model selection?
A: Provide OLTC make, drive mechanism, motor current, tap count, available contacts, and required waveforms.
Q: What should be checked before installation?
A: Check sensor mounting, current-loop routing, vibration coupling, position inputs, and time synchronization.
Q: How can the device or system be integrated?
A: Modbus RTU, Modbus TCP, or IEC 61850 can connect the host to the transformer or station platform.
Q: Which options should be confirmed before production?
A: Confirm input quantities, sensor ranges, host mounting, storage needs, protocol, and cable lengths.
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