Key facts
- Brand
- ABB
- Model
- 650 series
- Industry
- Industrial
- Documents
- 5
- Languages
- ZH · EN
- Last added
- 2026-10-26
Start here
ABB Relion® 650 Series Transformer Protection RET650 Technical Manual
The document serves as a comprehensive technical guide for the ABB Relion® 650 Series Transformer Protection device, specifically the RET650 model. It details the product's functions, operating principles, and safety information.
The manual covers various protection schemes including differential protection (for two-winding and three-winding transformers), low-impedance earth fault protection, and current-based protections such as phase overcurrent and zero-sequence overcurrent. It also describes local human-machine interface (LHMI) features, control functions, and communication capabilities. This manual is written in Chinese.
ABB 650 series specifications
| Accuracy for differential current < Ir | ± 1.0% Ir |
|---|---|
| Return coefficient | > 95% |
| Operating time for differential protection (with restraint) | 20 ms typical |
Source: ABB Relion® 650 Series Transformer Protection RET650 Technical Manual
All ABB 650 series documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Instruction set, parameters and examples for configuring or programming the device.
Questions answered in these manuals
What is the accuracy of the differential current measurement when current is less than Ir?
The accuracy is ± 1.0% Ir.
From: ABB Relion® 650 Series Transformer Protection RET650 Technical Manual
What is the typical operating time for the differential protection with restraint?
The typical operating time is 20 ms.
From: ABB Relion® 650 Series Transformer Protection RET650 Technical Manual
What is the Relion 650 REC650 device designed for?
The product is designed and produced for industrial use.
What is the product version of the Relion 650 Series?
The product version described in this manual is 2.1.
From: ABB Relion 650 Series LON Communication Protocol Manual
Who is the manufacturer of the Relion 650 Series?
The manufacturer is ABB.
From: ABB Relion 650 Series LON Communication Protocol Manual
What is the intended audience for this manual?
The manual is intended for users requiring information on IEC 61850 communication protocols for the Relion 650 series.
From: ABB Relion Protection and Control 650 Series IEC 61850 Communication Protocol Manual