bus2000 busbar differential protection system - ge digital energy
TRANSCRIPT
![Page 1: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/1.jpg)
1
Industrial Systems
BUS2000 Busbar Differential Protection SystemDifferential overcurrent system with
percentage restraint protection
![Page 2: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/2.jpg)
2
Industrial Systems
Typical Busbar Arrangements– Single Busbar– Double Busbar with Coupler– Breaker and a Half– Double Breaker– Double Busbar with Transfer Bar– Segregated Busbars with Coupler
![Page 3: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/3.jpg)
3
Industrial Systems
Typical Single BusbarArrangement
![Page 4: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/4.jpg)
4
Industrial Systems
Typical Double Busbarwith Coupler Arrangement
![Page 5: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/5.jpg)
5
Industrial Systems
Typical Breaker and a Half Arrangement
![Page 6: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/6.jpg)
6
Industrial Systems
Typical Double BreakerBusbar Arrangement
![Page 7: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/7.jpg)
7
Industrial Systems
Typical Double Busbarwith Transfer Bar
![Page 8: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/8.jpg)
8
Industrial Systems
Typical Segregated Busbarwith Coupler
![Page 9: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/9.jpg)
9
Industrial Systems
Types of Protection Schemes
–Low Impedance–High Impedance
• Medium Values• High Values
![Page 10: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/10.jpg)
10
Industrial Systems
Low Impedance Protection
![Page 11: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/11.jpg)
11
Industrial Systems
Saturation of the AuxiliaryCTs
• A. Primary Fault Current• B. Secondary Current from the Source CTs• C. Secondary Current in the Faulty CT• D. Differential Current
![Page 12: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/12.jpg)
12
Industrial Systems
Low Impedance Protection Current Detection + Second
Criteria–Time-delayed Overcurrent Relays–Directional Overcurrent Relays –Restraint Overcurrent relays–CT Saturation Detectors
![Page 13: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/13.jpg)
13
Industrial Systems
High Impedance ProtectionScheme
![Page 14: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/14.jpg)
14
Industrial Systems
High Impedance Protection
•• WHERE:• RL= CONNECTION WIRES RESISTANCE• IF = SECONDARY RMS CURRENT VALUE IN TI3
• VR = DIFFERENTIAL RELAY VOLTAGE• VS = CT MINIMUM SATURATION VOLTAGE• VOP = OPERATION VOLTAGE
• VR = IF x (2RL + RS)• VOP > VR Stability Criteria• VS > VOP Operation Criteria• TI3 Totally Saturated• RS CT Secondary Winding R Value
![Page 15: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/15.jpg)
15
Industrial SystemsDifferential Overcurrent Relay with Percentage Restraint & Stabilizing
Resistor
![Page 16: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/16.jpg)
16
Industrial Systems
BUS2000-External Fault
![Page 17: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/17.jpg)
17
Industrial Systems
BUS2000-Internal Fault
![Page 18: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/18.jpg)
18
Industrial Systems
BUS2000 - Differential Unit Block Diagram
![Page 19: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/19.jpg)
19
Industrial Systems
BUS2000-Sensitivity Algorithm (1)
![Page 20: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/20.jpg)
20
Industrial Systems
BUS2000-Sensitivity Algorithm (2)
![Page 21: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/21.jpg)
21
Industrial Systems
BUS2000-Sensitivity Algorithm (3)
![Page 22: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/22.jpg)
22
Industrial Systems
External Fault with CT Saturation
![Page 23: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/23.jpg)
23
Industrial Systems
BUS2000-Stability Algorithm
![Page 24: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/24.jpg)
24
Industrial Systems
BUS2000-Stability Limit
![Page 25: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/25.jpg)
25
Industrial Systems
BUS2000-Operation Characteristic
![Page 26: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/26.jpg)
26
Industrial Systems
BUS2000-Auxiliary CT. Magnetizing Curve of the Secondary Side
![Page 27: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/27.jpg)
27
Industrial Systems
BUS2000-Alarm Unit Block Diagram
![Page 28: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/28.jpg)
28
Industrial Systems
Breaker Failure Block Diagram
![Page 29: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/29.jpg)
29
Industrial Systems
Numerical Monitoring Module– Differential and Restraint Currents Metering Information– Full Human-Machine Interface (Keypad + Graphic
Display)– IRIG-B Time Synchronization– Alarm Treatment– Differential Protection Outputs Status
![Page 30: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/30.jpg)
30
Industrial Systems
Numerical Monitoring Module (cont)
– Oscillography Waveform Capture– Event Record– RS232 or fiber optics Communications– Configurable I/O– Undervoltage Supervision
![Page 31: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/31.jpg)
31
Industrial Systems
BUS2000-Single Busbar(6 feeders) Differential Protection
![Page 32: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/32.jpg)
32
Industrial Systems
BUS2000-Overcurrent and Breaker Failure (5 feeders) Protection
![Page 33: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/33.jpg)
33
Industrial Systems
BUS2000-Test Rack
![Page 34: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/34.jpg)
34
Industrial Systems
BUS2000-Numerical Monitoring Module
![Page 35: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/35.jpg)
35
Industrial Systems
External Connections Diagram of Single Busbar BUS2000
System
![Page 36: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/36.jpg)
36
Industrial Systems
BUS2000-Settings–K for Sensitivity–K and RE as low as possible–RE for CT requirements for
Overvoltage Conditions
![Page 37: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/37.jpg)
37
Industrial Systems
Key Advantages
– Flexibility– Independent setttings for K and RE done in the field
without any additional changes– Wide Setting Range
– Suitable for all kinds of installations
– Measurement Units Supervision
– Current Circuits Supervision
![Page 38: BUS2000 Busbar Differential Protection System - GE Digital Energy](https://reader031.vdocuments.us/reader031/viewer/2022020703/61fb309d2e268c58cd5b3881/html5/thumbnails/38.jpg)
38
Industrial Systems
Key Advantages (cont’d)
– Single-Three Phase Breaker Failure– Test Rack Independent from the protection– Easy Commisioning (accesible terminal blocks)– Suitable for updating of old Substations– Operating Principles well proven in the field– Numerical Monitoring Module