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  • SY680 Microprocessor Integrated Protection and Monitoring Device
Microprocessor Protection Device & System

SY680 Microprocessor Integrated Protection and Monitoring Device

  SY680 series integrated protection device provides large screen display, human-machine int...

  • Product Introduction
  • Product Features
  • Technical Parameters
  • Awards

Product Introduction

  SY680 series integrated protection device provides large screen display, human-machine interface in Chinese character, operation box function, independent measurement CT and redundant star network communication mode. It is a highly cost-effective product.
    This series of protection device is suitable for the distribution system with different grounding modes at 110kV and below voltage level. It can perform protection, control and monitoring functions for feeders, capacitors, reactors, motors and transformers.

The device is provided with a variety of flexible hardware types , such as: redundant RS485 communication card, redundant 100M Ethernet communication card, two-way 0~24mA analog output card, four-way 0~22mA analog input card, extended modules of switch input and output etc.
    The front USB port provides users with remote maintenance and fault diagnosis. The user only needs to insert the USB flash disk into the device, then the relevant fault recording and tripping information will be exported. Our after-sales service personnel will analyze the type of fault and guide the user to handle it on the scene. Device configuration download and software upgrades can be completed through the USB flash disk.
    The constant value of SY680 series device is set in complete accordance with domestic user habit. For example, over-current protection provides direction and compound voltage interlocking function and control word deblocking and blocking function. All switch input and output are predefined. As long as the user input the constant value from the panel, the device could work properly.
    The integrated programmable logic tool (CFC) and user-defined protection feature allow the user to achieve special protection, interlocking, and custom information.
    By changing the jumper, the protection device is suitable for the field DC power supply at 110VDC or 220VDC voltage level, CT at 1A or 5A current level.

 

Product Features

  • The operation box function available

  • The high-precision measurement for CT available

  • Built-in CFC programmable logic

  • Self-defined protection function provided

  • USB2.0 interface available

  • IEC61 850/IEC 1 03/Modbus protocol available

  • Redundant star network and ring network available

  • Constant value uploading and modification available

  • Convenient remote technical support services provided

Technical Parameters

No. Protection
Model
Function
Circuit Protection Motor   Overcurrent Protection  Motor  Differential Protection  Capacitor   Protection (Unbalance Current) Capacitor   Protection (Unbalance Voltage) Capacitor   Protection (Differential Voltage)
Protection Category A B C D E F
1 Overcurrent Protection Three-sect   Non-directional Overcurrent Protection · · · · · ·
Three-sect Directional Overcurrent Protection ·




LV Interlocking Function ·




Compound-voltage Interlocking Function ·




Three-sect   Time Delay Outlet





One-sect IEC Non-directional Inverse-time Overcurrent   Protection
· · · · · ·
One-sect IEC Directional Inverse-time   Overcurrent Protection
·




2 Zero-sequence Overcurrent Protection
Three-sect   Non-directional Zero- sequence Overcurrent Protection · · · · · ·
Three-sect Directional Zero-sequence   Overcurrent Protection ·




One-sect IEC Non-directional Inverse-time   Zero-sequence Overcurrent Protection
· · · · · ·
One-sect IEC Non-directional Inverse-time   Zero-sequence Overcurrent Protection
·




Three-sect   Time Delay Outlet





3 Negative Sequence Protection
Two-sect   Constant Time-lag Negative Current Protection
· · ·


One-sect IEC Inverse-time Negative Current   Protection
· · ·


4 Voltage Protection  Two-sect   Constant Time-lag  Overvoltage   Protection
· · · · · ·
Two-sect Constant Time-lag    Undervoltage Protection
· · · · · ·
Three-phase Voltage; Three-phase   No-voltage;        Single-phase Voltage   Monitoring
· · · · · ·
5 Accelerating Protection of Hand Closing Fault  · · · · · ·
6 Four-sect Under-voltage Load Shedding · · ·


7 Four-sect Under-frequency Load Shedding · · ·


8 Zero-sequence Overcurrent Accelerating Protection  ·




9 Phase-sequence   Protection · · · · · ·
10 2nd Harmonic Interlocking Overcurrent Protection





11 Thermal   Overload Protection
· ·


12 Under-current   Protection
· ·


13 Motor Start-up   Protection
· ·


14 Motor Stalling   Protection
· ·


15 Motor Restart Inhibitory Protection
· ·


16 Reverse Power   Protection · · ·


17 Differential Protection Electromagnetic   Balance Differential Protection

·


Quick-break

·


Ratio Differential Protection

·


2nd &5th Harmonic Interlocking
    Differential Protection






18 One-sect Constant Time-lag Unbalabced   Overcurrent Protection


·

19 One-sect Constant Time-lag Unbalabced   Overvoltage Protection



·
20 One-sect Constant Time-lag Differential Voltage   Protection




·
21  One-sect   Constant Time-lag Differential Current Protection





22  Two-sect   Clearance Zero-sequence Overcurrent Protection





23  Two-sect   Zero-sequence Overvoltage Protection






24 Over-excitation Protection





25 Overload Start Air Cooling





26  Overload   Interlocking On-load Voltage Regulation





27  Two-sect Overload Protection · · ·


28 Three-sect Constant Time-lag One-sect   Inverse-time Zero-sequence Overcurrent Protection on Low-voltage Side 





29 20 Sets of User-defined Protection · · · · · ·
30 FC Circuit Overcurrent Interlocking Tripping   Function · · ·


31 Charging Protection ·




32  Circuit   Breaker Failure Protection · · · · · ·
33 Three-phase Inconsistent Protection





34 Synchronization Function (Same Frequency and   Different Frequency Synchronization) ·




35 reclosing twice ·




36 Non-electricity Protection · · ·


37 4*(0-20mA) Analog Quantity Protection  · · · · · ·
38 Small Current Line Selection · · · · · ·
39 Cooling Load Starting Signal  · · · · · ·
40 Tripping and Closing Loop Monitoring · · · · · ·
Control Loop Disconnection   Monitoring · · · · · ·
41 VT Disconnection Monitoring · · · · · ·
42 CT Disconnection Monitoring · · · · · ·


No. Protection
Model
Function
Capacitor   Protection (Bridge Differential Current) Reactor   Protection (Differential Protection) Transformer   Bback-up Protection Substation   Transformer Protection 2-4 Side   Differential Protection Simplified   Circuit Protection Simplified Motor   Overcurrent 
Protection Category G H J K L MA MB
1 Overcurrent Protection Three-sect   Non-directional Overcurrent Protection · · · ·
· ·
Three-sect Directional Overcurrent Protection

·



LV Interlocking Function

· ·


Compound-voltage Interlocking Function

· ·
·
Three-sect   Time Delay Outlet

·



One-sect IEC Non-directional Inverse-time Overcurrent   Protection
· ·
·
· ·
One-sect IEC Directional Inverse-time   Overcurrent Protection







2 Zero-sequence Overcurrent Protection
Three-sect   Non-directional Zero- sequence Overcurrent Protection · · · ·
· ·
Three-sect Directional Zero-sequence   Overcurrent Protection

·



One-sect IEC Non-directional Inverse-time   Zero-sequence Overcurrent Protection
· ·
·
· ·
One-sect IEC Non-directional Inverse-time   Zero-sequence Overcurrent Protection







Three-sect   Time Delay Outlet

·



3 Negative Sequence Protection
Two-sect   Constant Time-lag Negative Current Protection





· ·
One-sect IEC Inverse-time Negative Current   Protection





· ·
4 Voltage Protection  Two-sect   Constant Time-lag  Overvoltage   Protection
·
· ·

·
Two-sect Constant Time-lag    Undervoltage Protection
·
· ·

·
Three-phase Voltage; Three-phase   No-voltage;        Single-phase Voltage   Monitoring
· · · ·
· ·
5 Accelerating Protection of Hand Closing Fault  · · · ·
· ·
6 Four-sect Under-voltage Load Shedding


·
· ·
7 Four-sect Under-frequency Load Shedding


·
· ·
8 Zero-sequence Overcurrent Accelerating Protection 




·
9 Phase-sequence   Protection · · · ·
· ·
10 2nd Harmonic Interlocking Overcurrent Protection

·



11 Thermal   Overload Protection





·
12 Under-current   Protection





·
13 Motor Start-up   Protection





·
14 Motor Stalling   Protection





·
15 Motor Restart Inhibitory Protection





·
16 Reverse Power   Protection






17 Differential Protection Electromagnetic   Balance Differential Protection






Quick-break
·

·

Ratio Differential Protection
·

·

2nd &5th Harmonic Interlocking
    Differential Protection




·

18 One-sect Constant Time-lag Unbalabced   Overcurrent Protection






19 One-sect Constant Time-lag Unbalabced   Overvoltage Protection






20 One-sect Constant Time-lag Differential Voltage   Protection






21  One-sect   Constant Time-lag Differential Current Protection ·





22  Two-sect   Clearance Zero-sequence Overcurrent Protection

·



23  Two-sect   Zero-sequence Overvoltage Protection


·



24 Over-excitation Protection

·



25 Overload Start Air Cooling

·



26  Overload   Interlocking On-load Voltage Regulation

·



27  Two-sect Overload Protection

· ·
· ·
28 Three-sect Constant Time-lag One-sect   Inverse-time Zero-sequence Overcurrent Protection on Low-voltage Side 


·


29 20 Sets of User-defined Protection · · · ·


30 FC Circuit Overcurrent Interlocking Tripping   Function






31 Charging Protection




·
32  Circuit   Breaker Failure Protection · · · ·


33 Three-phase Inconsistent Protection

·



34 Synchronization Function (Same Frequency and   Different Frequency Synchronization)






35 reclosing twice




·
36 Non-electricity Protection
· · ·
· ·
37 4*(0-20mA) Analog Quantity Protection  · · · · ·

38 Small Current Line Selection · ·
·
· ·
39 Cooling Load Starting Signal  · · · ·
· ·
40 Tripping and Closing Loop Monitoring · · · ·
· ·
Control Loop Disconnection   Monitoring · · · ·
· ·
41 VT Disconnection Monitoring · · · ·
· ·
42 CT Disconnection Monitoring · · · · · · ·

Awards