Product Parameters
- Model Number: 7VR5865-5FC00-0AA0
- Series: SWT 3000 (Substation Window Terminal)
- Application: High-Voltage (HV) Line Protection Signaling
- Power Supply: 110V to 250V DC / 100V to 240V AC
- Communication Interface: Fiber Optic (ST connectors), RS232/485, and IEC 61850 support
- Protection Channels: Support for up to 4 independent protection commands
- Transmission Media: Digital Networks, Analog PLC (Power Line Carrier), or Fiber
- Safety Class: IEC 60834-1 compliant for teleprotection
Product Description
The Siemens 7VR5865-5FC00-0AA0 is a core component of the SWT 3000 teleprotection system, designed to transmit critical protection commands over high-voltage transmission lines. This unit acts as the “messenger” for distance and differential protection relays, ensuring that if a fault is detected at one end of a 110kV–800kV line, the remote breaker is tripped in milliseconds. The SWT 3000 is renowned for its extreme reliability and security against “false trips” caused by electrical noise or line lightning strikes. This specific variant is optimized for digital network integration, supporting modern substation automation protocols while maintaining high-speed performance.
Application Fields
This signaling unit is predominantly used in utility-scale electrical substations for high-voltage and extra-high-voltage (EHV) grid management. It is integrated into Protection, Automation, and Control (PAC) cabinets to facilitate permissive overreaching transfer trip (POTT) and direct transfer trip (DTT) schemes. It is essential for protecting long-distance transmission lines where fast fault clearing is required to maintain grid stability and prevent damage to large power transformers.
Product Specifications
- Weight: 3.40 kg
- Dimensions: 19-inch rack-mount (3U height)
- Origin: Germany
Operational Precautions
- Signal Latency: Always verify that the end-to-end transmission time (latency) meets the protection relay’s requirements, especially when routing through multiplexed digital networks.
- Fiber Integrity: Ensure fiber optic connectors are cleaned with isopropyl alcohol before insertion; even microscopic dust can cause signal attenuation leading to “Link Loss” alarms.
- Redundancy: In critical EHV applications, it is highly recommended to use dual, independent communication paths (e.g., Fiber + Power Line Carrier) to ensure command delivery.
- Firmware Sync: When replacing a single unit in a pair, ensure the firmware version of the new unit matches the existing remote-end unit to prevent logic handshake failures.
Recommended Similar Product Models
| Model Number | Series | Primary Function | Interface Type |
|---|---|---|---|
| 7VR5865-5FA00 | SWT 3000 | Protection Signaling | Analog PLC / VF |
| 7VR600 | PowerLink | Carrier Terminal | HV Line Carrier |
| 7SJ80 | SIPROTEC 4 | Overcurrent Protection | Relay Integrated |
| 7SA522 | SIPROTEC 4 | Distance Protection | Transmission Line |
| 7VR5866 | SWT 3000 | Expanded Command Unit | 8-Channel Support |
