New Century Electrical
Products
Intelligent protection device for the transmission and transformation group
- Overview
- Main Features
- Main Indicators
- Main functions
- Device Configuration
For turbine generators, hydro generators, pumped storage units, and other types of generating units with a single machine capacity of 100MW or less, our company's XSJ-1340B generator set intelligent protection device has differential main protection and rotor grounding protection functions. Together with our XSJ-1350B generator set intelligent protection device, which has 100% stator grounding protection, demagnetization protection, out-of-step protection, and measurement control functions, they form a complete main and backup protection system. Based on the IEC61850 communication protocol, it supports data collection, operational self-check, proactive accident report uploading, monitoring, and remote operation control services, meeting the requirements of the electrical automation system in power plants. The device has a compact structure, can be installed in a group screen, or installed on-site in a switch cabinet.
XSJ-1340B generator set main protection device
XSJ-1350B generator protection measurement and control device
1) The protection function configuration is complete, meeting the requirements for selectivity, speed, sensitivity, and reliability.
2) Designed strictly according to the standards of the two networks and six unifications.
3) Hardware platformization, universal design, and compatibility design between IEDs, meeting the interchangeability and plug-and-play characteristics between IEDs.
4) Supports digital substation functions (supports IEC61850 MMS communication).
5) Flexible protection control logic programmable function, achieving graphical editing of protection and control scheme, meeting personalized needs.
6) Has virtual testing function, can achieve automatic point-to-point remote signaling and remote measurement setting.
7) Independent and flexible operation loop, adaptable to various operation structures.
8) High-security anti-misoperation locking: implements anti-misoperation function based on the structural characteristics of its station control layer, interval layer, and process layer, and meets the locking logic to achieve the "five defenses" function, thus completing the online five-defense technology.
9) User-friendly human-machine interface, Chinese character display, Chinese report display.
10) Comprehensive event report processing function, can view equipment operation information and fault information. At the same time, it can save the latest 10 complete event reports and fault recordings, the latest 200 remote signaling changes, self-check reports, operation reports, and remote control reports.
11) Multiple independent Ethernet interfaces, can simultaneously support on-site monitoring background, protection information workstation, and dispatch communication. The communication interface adopts safe isolation and lightning protection design, ensuring on-site communication is safe and reliable.
12) Supports a powerful communication network: the device is designed strictly according to the standard IEC61850 protocol system. Using standard Ethernet communication, it can form single network and dual network structures; supports serial DL/T667-1999 (IEC60870-5-103) protocol, which supports both Ethernet and serial two physical connection methods.
1. Technical Parameters
Serial Number
Parameter Name
Technical Parameters
1
Working Power Supply
DC 220V
2
Input Voltage
DC 220V
3
Rated AC Voltage
100V or 100/
V4
Rated AC Current
5A or 1A
5
Rated AC Frequency
50Hz
6
Phase Voltage Normal Measurement Range
2V～150V
7
Current Normal Measurement Range
0.05In～20In
8
Current and Voltage Measurement Accuracy Level
0.2 Level
9
Power Measurement Accuracy Level
0.5 Level
10
Frequency Measurement Accuracy Level
0.02Hz
2. Appearance Size
XSJ-1340B Device Appearance Size and Front View
XSJ-1340B Device Rear View
Appearance and Size of XSJ-1350B
XSJ-1350B Device Appearance Size and Front View
Classification
XSJ-1340B Project
Configuration Description
Protection
87G
Differential Protection
■ (Differential Instantaneous, Ratio Differential Protection)
64R
Rotor Ground Protection
■ (Single Point Grounding, Two Point Grounding)
96
Non-Electric Quantity Protection
■ (Alarm, Action, total 12 channels)
Measurement
Remote Measurement
High Voltage Side Current, Neutral Point Current, Excitation Current, High Voltage Side Voltage, Excitation Voltage, Active Power, Reactive Power, Power Factor, Generator Frequency, System Frequency, etc.
Remote Signal
■ (20 channels)
Control
Remote Control Operation of Circuit Breaker
■ (Trip, Close)
Fault Diagnosis
TV Disconnection
■
High Voltage Side TA Disconnection
■
Neutral Point TA Disconnection
■
Low Excitation Voltage Alarm
■
Device Power Failure Alarm
■
Communication Abnormality Alarm
■
Event
Event SOE Record
■
Device Power On, Power Off, Reset Record
■
Accident, Manual Recording (requires background display)
■
Debugging
Device Output Drive
■
Event Report Clearance
■
Manual Setting
■
Hardware Configuration
Input Quantity
Standard 20
Output Quantity
Standard 11
Analog Quantity
Standard 09
Ethernet Communication Interface
3 Channels (IEC60870-5-103 Protocol)
RS-485 Communication Interface
2 Channels (Standard Modbus Protocol)
Chassis Structure
4U 19"/2
Voltage Transformer Wiring Method
YY
Classification
XSJ-1350B Project
Configuration Description
Protection
51VG
Re-Pressure Overcurrent Protection
■ (3-stage configuration, with current memory)
59N
Zero Sequence Overvoltage Protection
■
51N
Zero Sequence Overcurrent Protection
■
51G
Stator Overload Protection
■
46G
Negative Sequence Overload Protection
■
59G
Overvoltage Protection
■
32R
Reverse Power Protection
■
81G
Frequency Protection
■ (Low Frequency, Over Frequency)
40G
Loss of Magnetism Protection
■
50BF
Failure Protection
■
27G
Phase Adjustment Loss of Voltage Protection
■
92
Fault Component Negative Sequence Functional Direction Protection
■
24
Over Excitation Protection
■
68/78
Loss of Step Protection
■
Operation Circuit
84
Independent Operation Circuit
■ (Operation Plugin)
Measurement
Remote Measurement
Machine End Current, Neutral Point Current, Machine End Zero Sequence Current, Machine End Voltage, Machine End Zero Sequence Voltage, System Voltage, Active Power, Reactive Power, Power Factor, Generator Frequency, System Frequency, etc.
Remote Signal
■ (20 channels)
Control
Remote Control Operation of Circuit Breaker
■ (Trip, Close, supports verification of synchronous closing)
Fault Diagnosis
TV Disconnection
■
TA Disconnection
■
Control Circuit Disconnection
■
TWJ Abnormality
■
Device Power Failure Alarm
■
Communication Abnormality Alarm
■
Event
Event SOE Record
■
Device Power On, Power Off, Reset Record
■
Accident, Manual Recording (requires background display)
■
Debugging
Device Output Drive
■
Event Report Clearance
■
Manual Setting
■
Hardware Configuration
Input Quantity
Standard 20
Output Quantity
Standard 11
Analog Quantity
Standard 12
Ethernet Communication Interface
3 Channels (IEC60870-5-103 Protocol)
RS-485 Communication Interface
2 Channels (Standard Modbus Protocol)
Chassis Structure
4U 19"/2
Voltage Transformer Wiring Method
YY
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