ABB RET620 transformer protection measurement and control device
Delivery time 3 days
Product origin New/used
Email plcru@foxmail.com
Mobile/wechat /WhatsApp +86 18185397189
ABB RET620 Transformer Protection measurement and control device is a protection
ABB RET620 Transformer Protection measurement and control device is a protection, control, measurement and monitoring device designed for power transformers and boost transformers, widely used in power systems and industrial distribution system generator transformer sets. The following is a detailed description of the ABB RET620 transformer protection measurement and control device:
I. Product overview
Function orientation: RET620 is a transformer protection device that integrates protection, control, measurement and monitoring functions, especially for double-winding power transformers and power generator transformers.
Application: Suitable for power transformers and booster transformers in public utility and industrial power distribution networks, including generator transformer sets.
Series Attribution: The RET620 is a member of the 620 family of ABB Relion® products.
Two, the main function
Protection function:
Differential protection: Provides advanced fast differential protection, including a function with inrush current braking, to effectively deal with transformer winding failures.
Thermal overload protection: Monitor transformer temperature to prevent failure caused by overheating.
Voltage protection: including overvoltage, undervoltage and other protection to ensure that the transformer is protected when the voltage is abnormal.
Ground fault protection: Supports a variety of neutral ground modes, with high impedance or low impedance limited ground fault principle.
Optional functions: such as transformer automatic on-load voltage regulation function, arc protection, etc., can be configured according to specific requirements.
Control function:
It supports single or double bus configurations and is suitable for transformers with various Y-Δ connection modes.
Supports a large number of manual and electric isolation switches and ground switches operation.
The number of controllable devices depends on the input and output requirements of other applications.
Measurement and monitoring functions:
Provide comprehensive measurement data such as current, voltage, power, etc.
The single line diagram is displayed through the large LCD screen, which is convenient for users to monitor the operation status of the transformer.
3. Communication and protocol
Communication standards: Support for substation IEC61850 communication standards, covering vertical and horizontal communication.
Message support: GOOSE messages with switching signal and analog signal, as well as setting values based on IEC 61850-8-1 are supported.
Protocol support: In addition to IEC61850, communication protocols such as Modbus, DNP3, and IEC 60870-5-103 are also supported.
Redundancy and self-healing: PRP or HSR protocols provide redundant Ethernet or self-healing RSTP ring network communication without delay in case of communication failure, improving communication reliability.
Fourth, product advantages
Integrated design: One unit integrates protection, control, measurement, and monitoring functions to simplify system configuration.
Flexible configuration: It has pre-configured standard configuration, and can quickly and easily meet different application requirements through functional configuration.
Easy installation and testing: Pluggable design for easy installation and testing.
Full life cycle service: to provide thoughtful product full life cycle service to ensure that users have no worries.
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