ABB RED615 HCDCACADAAHC2BNN11E Line Differential Protection and Control

ABB RED615 HCDCACADAAHC2BNN11E Line Differential Protection and Control

Product Overview

ABB RED615 HCDCACADAHC2BNNN11E is a high-performance line differential protection and control device designed specifically for medium and high voltage transmission lines, belonging to ABB Relion ®  615 series protective device family. This device is centered around precise differential protection algorithms, comprehensive control functions, and reliable communication capabilities. It integrates line differential protection, backup protection, measurement monitoring, and remote control, and is mainly used in transmission lines, cable lines, and hybrid line protection scenarios with voltage levels ranging from 110kV to 500kV. It plays a key role in quickly cutting off faults and ensuring the safe and stable operation of the power grid in the power system.

As a core component of the secondary equipment in the power system, this device adopts advanced microprocessor technology and digital signal processing solutions, which can accurately identify the type and location of faults in complex power grid conditions, achieve millisecond level fault response, and have complete self diagnosis and anti-interference capabilities, effectively reducing the risk of misoperation and refusal to operate, providing solid guarantees for the safe and reliable operation of the power grid.

Core Features

1. Accurate and efficient line difference protection function

The device is equipped with ABB's patented adaptive differential protection algorithm, which can dynamically adjust the protection threshold based on line parameters, operating mode, and fault characteristics, effectively solving the protection accuracy problem of traditional differential protection in scenarios such as long line capacitor current influence and CT saturation. Supporting multiple differential modes such as phase separation current differential protection and zero sequence current differential protection, it can accurately identify faults within and outside the line area. The fault action time within the area is ≤ 20ms, ensuring rapid fault removal and minimizing the impact of faults on the power grid; Reliable braking in case of faults outside the area to avoid protection misoperation.

2. Comprehensive backup protection configuration

In addition to core differential protection, the device integrates comprehensive backup protection functions, including three-stage overcurrent protection, overvoltage protection, undervoltage protection, zero sequence overcurrent protection, distance protection, etc., forming a multiple protection system of "main protection+backup protection". Backup protection has a flexible time limit coordination mechanism, which can achieve precise coordination with adjacent equipment protection according to the topology structure and protection setting scheme of the power grid. When the main protection refuses to operate or communication is interrupted, it ensures that the fault can be reliably cut off, improving the redundancy and reliability of power grid protection.

3. Advanced digital and communication capabilities

Supports the IEC 61850 standard, has a complete digital interface, and can directly access the digital sampling values (SV) of intelligent substations and the general object-oriented substation event (GOOSE) network, achieving seamless integration with merging units, intelligent terminals, and upper level monitoring systems. At the same time, it is equipped with multiple Gigabit Ethernet interfaces and RS485 serial interfaces, supporting mainstream communication protocols such as IEC 60870-5-103, Modbus RTU/TCP, etc. It can upload real-time protection action information, measurement data, and device operation status, support remote setting, remote control operation, and program upgrade, providing convenience for the digital operation and maintenance of the power grid.

4. High reliability and anti-interference performance

Adopting industrial grade reinforced hardware design, the core components have undergone strict screening and possess wide temperature operation capability, which can work stably in environments ranging from -40 ℃ to+70 ℃. The device has passed the IEC 61000 series electromagnetic compatibility test and has extremely strong resistance to electromagnetic radiation, lightning strikes, and voltage fluctuations, which can adapt to the complex electromagnetic environment of substations. At the same time, it is equipped with comprehensive hardware self checking and software diagnostic functions, which can monitor the real-time operation status of key components such as CPU, power supply, I/O module, communication interface, etc., and promptly issue alarm signals when faults are detected, making it easy for operation and maintenance personnel to quickly locate and handle them.

5. Flexible configuration and operational experience

Equipped with high-definition LCD display panel and user-friendly operation buttons, supporting multiple language interfaces such as Chinese and English, it can intuitively display protection settings, measurement data, fault recording information, and device status. Through the ABB PCM600 configuration software, engineers can easily complete tasks such as device parameter configuration, setting values, and fault analysis. The software is equipped with rich protection logic templates and debugging tools, greatly improving work efficiency. The device supports fault recording function, which can record the current, voltage waveform and protection action process before and after the fault, providing accurate data support for fault analysis.

Key technical parameters

Basic Information

model

RED615 HCDCACADAHC2BNN11E

Basic Information

Product Type

Differential protection and control device for medium and high voltage transmission lines

Applicable voltage level

Rated voltage range

110kV -500kV (parameters need to be adjusted to adapt to different voltage levels)

input parameters

Current input

Rated current 5A/1A, accuracy level 0.2S

input parameters

Voltage input

Rated voltage 100V (line voltage)/57.7V (phase voltage), accuracy level 0.2

Protect performance

Differential protection action time

Fault within the area ≤ 20ms, reliable fault outside the area does not operate

Protect performance

Overcurrent protection range

0.1In - 20In， Setting step size 0.01In

Protect performance

Distance protection accuracy

Error ≤± 5% (line impedance)

Power requirements

input voltage

DC 220V/110V or AC 220V, allowable fluctuation range ± 20%

Power requirements

Typical power consumption

≤ 30W (during normal operation)

communication interface

Ethernet interface

4 Gigabit Ethernet interfaces (supporting IEC 61850 SV/GOOSE)

communication interface

serial interface

2 RS485 interfaces (supporting IEC 60870-5-103, Modbus)

environmental adaptability

Operating Temperature

-40℃ - +70℃

environmental adaptability

Storage temperature

-40℃ - +85℃

environmental adaptability

relative humidity

5% -95% (non condensing)

Electromagnetic Compatibility

Immunity level

Compliant with IEC 61000-4-2/3/4/5/6 standards, Level 4

output circuit

Trip/closing output

8-channel programmable relay output, contact capacity AC 250V/5A

Mechanical dimensions

Length x Width x Height

483mm × 177mm × 267mm (standard 19 inch rack installation)

fault recording

Recording capacity

≥ 1000 fault recording times, with configurable recording duration for each time (up to 60 seconds)

Applicable scenarios

1. Protection of ultra-high voltage transmission lines: applied to overhead transmission lines with voltage levels of 110kV, 220kV, and 500kV, as the main protection device to quickly cut off line faults and ensure the safe and stable operation of cross regional power grids. It is suitable for the backbone transmission networks of State Grid and Southern Power Grid.

2. Cable line and hybrid line protection: For cable lines or "overhead+cable" hybrid lines in urban power grids, its adaptive differential protection algorithm can effectively compensate for the influence of cable capacitance current, avoid protection misoperation, and is suitable for urban substations and industrial park transmission lines.

3. Protection of new energy grid connected transmission lines: Suitable for grid connected transmission lines of wind power, photovoltaic and other new energy power plants, able to adapt to the fluctuation and intermittency characteristics of new energy generation, accurately distinguish faults from normal fluctuations, ensure the safe integration of new energy power into the main grid, and enhance the grid's ability to accept new energy.

4. Self owned power plants by industrial enterprises: used for the protection of transmission lines in large industrial enterprises such as steel, chemical, and metallurgical self owned power plants, to achieve reliable connection and isolation between self owned power plants and external power grids, and to ensure the stability and independence of internal power supply within the enterprise.

5. Construction of smart substations: As the core protection equipment of smart substations, it supports the IEC 61850 digital communication standard and can seamlessly integrate into the digital power grid architecture, achieving the integration of protection, measurement, control, and communication, and adapting to the needs of smart grid construction.