1. Generator Protection System

2. Generator Protection System based on the successful 851/951 platform
What is it?
Generator Protection System based on the successful 851/951 platform
Includes Multifunction Protection and:
Metering and Control
Relay Status Alarms
Breaker Monitoring
Detailed Event and Oscillography Data
Communication (Status, Metering, Control, Settings, Events)
Programmable Logic
Programmable I/O

3. What makes it unique? High Flexibility
Flexibility in protection settings
Flexibility in application logic
Flexibility in packaging (H1 and S1 case)
Optimal functionality in a small package

4. Typical BE1-GPS One Line
Bus 52
VX on Broken Delta, 3Vo, gen neutral
VX*
* VX: one optional phase voltage input usable for either gen neutral or sync check
3,2 24
x81
O/U 47
x27N
x59N
x27P
x59P 25 G
46Q
50TN
50TP
x40Q
x32
60FL 3 BF
51N
51P
VR/VC
151N
x50/51N: 3Io or Ig
1 neu
VX, Ig Optional IE
Logic
x62
27-3N
VX*
R or X
+ Front Display, RS232 ASCII, RS485, ASCII/Modbus/DNP, Oscillography,
SOE, 2 Setting Groups, Programmable Logic, 4 status in, 6 contact out

5. Protection - Current 51V: Phase Overcurrent 51N, 151N Settable for:
Voltage Controlled (51/27C)
Voltage Restrained (51/27R)
Normal (51)
Multiple time curves using IEEE C :
7-CO, 5-IAC, 4-IEC, 1-fixed, 1-programmable
Each with instantaneous or integrating reset
51N, 151N
Each can be assigned to:
Three Phase Residual-3I0 (IN)
Optional Independent Ground Input (IG)

6. Protection - Current 46: Negative Sequence Overcurrent
Accepts K factor based I2 curve or
Standard time overcurrent curves
BF: Breaker Failure
Timer with fast dropout current detector
Supervise / Block with either internal elements or external inputs
Start / Initiate with either internal elements or external inputs

7. Protection - Current 50TP: Phase Instantaneous / Def. Time
Use for Inadvertent Energization logic or
On line indication or
Phase fault protection or
User-defined purpose
50TN: Ground Inst. / Def. Time
Ground fault protection or

8. Protection - Current
51N monitoring Optional Independent Ground Input can act as OC differential.
For those applications requiring Generator Differential (87): Use the BE1-87G or the BE1-CDS220
Redundancy gained by placing the differential in a separate package avoids the “all your eggs in one basket” pitfall
Basler offers competitive pricing for the CDS220/GPS100 combo package

9. Protection - Voltage 24: Volts/Hertz 25: Sync Check
Inverse quantity squared curve
Time delay proportionate to (1/(M-1)^2)
25: Sync Check
dV, dF, df
Sync allowed on gen. frequency>bus frequency if desired
Instantaneous response; no time delay needed, but can be added with 62 timer

10. Protection - Voltage 27P, 127P: Phase Undervoltage
59P, 159P: Phase Overvoltage
Unique user selected 1/3, 2/3, or 3/3 logic
Definite time
47: Negative Sequence Voltage
Reverse phase energization detection
Applicable for mobile generators

11. Protection - Voltage
27X, 127X, 59X, 159X : Auxiliary Over and Under Voltage
Definite Time
3 User Selected Modes
- Mode 1: Aux VT, fundamental frequency
Monitor bus or monitor generator neutral for ground fault
- Mode 2: Phase VT, 3Vo
Monitor generator high side for ground fault
- Mode 3: Aux VT, 3rd Harmonic
Absence of neutral 3rd harmonic indicates ground fault

12. Protection - Voltage 60FL: Fuse Loss Detection Algorithm
Negative Sequence Voltage in the absence of negative sequence current
Loss of all phase voltages with no phase current, with breaker closed
81, 181, 281, 381: Over / Under Frequency
Definite time
Frequency set points can be Over or Under
Undervoltage blocking

13. Protection - V x I
32, 132: Forward or Reverse, Over or Under Power (Under with user supplied logic)
Use for Loss of Prime Mover
Online indication
Sequential tripping
40Q, 140Q: Loss of Excitation
Definite Time
Offset Sloped VAR Flow Algorithm
Set one Fast/High; 2nd Slow/Low

14. Auxiliary Timers 62, 162, 262, 362: General Purpose Logic Timers
Multiple Modes of Operation
Pickup / Drop Out
One Shot, Retriggerable
One Shot, Non-retriggerable
Integrating Timer
Latch
Very Long PU and DO Time delays
s (2.78hrs)

15. Control
Virtual Control switches in the relay replace panel mounted switches
Controllable from relay HMI or via serial ports
101 Breaker Control switch
3 Outputs: 101T (Pulse Trip), 101C (Pulse Close), SC (Slip Contact)
43, 143, 243, 343 switches
3 modes: On / Off; Off / Momentary On; On / Off / Pulse
User settable labels

16. Switchable Setting Groups
Two settings groups for addressing different operating conditions
Controlled via Programmable Inputs
Control via 43 switches
Settings are independent
Setting Group can change logic

17. Typical One Line G PRIME MOVER FIELD 3RD 151N 27X 32 24 59X 3Vo 159P
GND
FLT
3RD
LOGIC
151N
27X 32 24
59X
3Vo
159P
132
27P 81
159X
40Q 47
181
IN2
SIMULTANEOUS
140Q
59P
281
TRIP
101
(T)
51V
159P
381
TIMER 46
Unused
Functions
60FL
SEQUENTIAL
IN3
TRIP
50P 43 25
IN4
50N
I.E.
127P
143
LOGIC
IN1
51N
50BF
243
127X
343

18. Metering Functions Volts: ph-ph, ph-n Amps: Ph, N, Gnd, Neg Sequence
Watts, VARS, Forward/Reverse
Watt-Hours, VAR-Hours
Read from
BESTCOMS
Front HMI
ASC commands
SCADA access via com. ports

19. Metering Functions

20. Metering Functions Demand Amps: per phase, ground, negative seq.
Watts, VARs, Forward / Reverse
Demand Alarms
Today's, yesterday's, peak since reset
Demand interval separately settable for phase, neutral, and negative sequence

21. Settings File Documentation
Use BESTCOMS to print or export all settings with a single click
Five pages of detailed settings
Fast and easy settings documentation

23. Detailed Event Reports
16 Fault Summary Reports
Includes tripping elements, targets, current, voltage, duration
255 Sequence of Events
SOE includes all logic changes of state and all protective element and I/O pu/do
240 Cycle Oscillography
View with free BESTwave software
Divided over 6-16 events (user setting)
12 samples / cycle

28. Alarms 4 Types of Alarms:
Relay Fail, Major, Minor, or Logic
Front Panel includes LEDs for Relay Trouble, Major, and Minor Alarms
Relay Fail Contact Output
Continuous self test
Reset alarms via Contact Input or Logic command

29. Breaker Monitoring Accumulation of interrupted I or I2
Provisions to disable breaker duty during test current injection
Operations counter
Excessive clearing time
Built-in trip circuit monitor (Output 1)

30. I/O 3 Phase CTs, 1 or 5 A Optional Independent Gnd CT, 1 or 5 A
3 Phase VTs, 3W, 4W, or 1 Ph
1 Aux VT (Gen Neutral or Bus)
4 Programmable Status Inputs
5 Programmable + 1 Alarm Outputs
3 Communication Ports
Front Panel: LCD display with 5 virtual switches

31. Advanced Human Machine Interface
Programmable scroll list
You can't get lost in the menu tree
Automatic priority of target and alarm displays
Most settings changeable via HMI
Logic setup requires com. port access

32. Integration Friendly Features
Virtual Switches replace physical switches for local and remote control
Metering, Alarm, and Status Reporting
Three Independent Communications Ports with optional protocol support
Modbus
DNP 3.0 Level 2 Certified

33. Communications Three independent general purpose com ports
All are optically isolated
ASCII command communications
Free WindowsÒ based software included for setting and interrogation of the relay
Protocol support for Com2 (RS-485 port on rear)
IRIG-B port is standard (external time sync)

34. Security Three access areas with independent passwords
Master access password
Security independently settable for each port

35. Hardware Features Flash memory for embedded programming
Active CT technology
Power supply holds up to 100ms with 4 output relay energized upon complete loss of power
Full drawout half rack and S1 case

36. Mounting Half Rack Case (H1) Mounting Accessories
Two Escutcheon Plates available:
Panel mounts one H1 type relay
Panel mounts two H1 type relays dovetailed side-by-side
Two Adapter brackets available:
Mounts single H1 case relay in a 19” rack
with cutout for FT test switch
without cutout for FT test switch

37. S1 Case with Test Paddle What about mounting? Mounting Accessories
Fits in same size cutout as Basler and GE S1 case
Available in S1 single and double ended Cases
Two Adapter Plates available:
Mounts S1 case in GE S2 or West. FT21 cutout
Mounts S1 case in West FT32 cutout

38. Windows Software Free BESTCOMS™ with Every Relay
System Setup Summary Screen shows all enabled functions
Screens are provided for the operational setting of each protective function
Screens are provided to aid making BESTlogic settings

40. Windows Software Free BESTCOMS™ with Every Relay
System Setup Summary Screen shows all enabled functions
Screens are provided for operational setting of each protective function
Screens are provided to aid making BESTlogic settings

42. Windows Software Free BESTCOMS™ with Every Relay
System Setup Summary Screen shows all enabled functions
Screens are provided for the operational setting of each protective function
Screens are provided to aid in making BESTlogic settings

43. FLEXIBILITY Application Logic
BESTlogic
Highly flexible programming language
Equivalent to combining discrete component with user defined Boolean logic
User has the same flexibility as in the days before multifunction relays
Evaluation effort is reduced

44. FLEXIBILITY Application Logic
User defined Inputs and Output Application
Customize to application
User defined variable names
Easier to analyze event reports
Allows virtual switch name to be customized to application

45. Select a Pre-programmed Scheme Program a Custom Logic Scheme
BESTlogic
Select a Pre-programmed Scheme OR
Program a Custom Logic Scheme

49. BESTlogic Example: Virtual Selector switch
Mode =
0 - disable
1 - on/off or pulse
2 - on/off only
3 - pulse only
7 Character
User defined name
for OFF state 43
10 character User
defined name for
switch
HMI or
Communication
Port Command
7 Character
User defined name
for ON state
Virtual switches: 43, 143, 243, 343

50. BESTprint
BESTPRINT allows users to preview and print graphical representations of BESTCOMS settings files.
15 pages of detailed documentation

53. Questions?