Basler BE1-CDS220, Instruction Manual

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BE1-CDS220 General Information i
SECTION 1
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GENERAL INFORMATION
TABLE OF CONTENTS
DESCRIPTION ...................................................................................................................................... 1-1
FEATURES............................................................................................................................................ 1-1
Input and Output Functions ............................................................................................................... 1-1
Protection and Control Functions...................................................................................................... 1-2
Metering ............................................................................................................................................ 1-3
Reporting and Alarm Functions......................................................................................................... 1-3
BESTlogic Programmable Logic ....................................................................................................... 1-4
Security ............................................................................................................................................. 1-5
Human-Machine Interface ................................................................................................................. 1-5
ASCII Command Interface ................................................................................................................ 1-5
PRIMARY APPLICATIONS ................................................................................................................... 1-6
DIFFERENTIAL PROTECTION APPLICATION CONSIDERATIONS.................................................. 1-6
Problem 1: False Differential Current Due to Poor CT Performance ................................................ 1-6
Problem 2: Measured Current Magnitude Mismatch ........................................................................ 1-7
Problem 3: Mismatch Caused by Load Tap Changers ..................................................................... 1-8
Problem 4: Phase Angle Shift ........................................................................................................... 1-9
Problem 5: Zero Sequence Current Sources within the Zone Of Protection .................................. 1-12
Problem 6: Transformer Energization Inrush and Overexcitation ................................................... 1-13
Problem 7: Digital Measurement Errors .......................................................................................... 1-14
MODEL AND STYLE NUMBER DESCRIPTION ................................................................................ 1-14
General............................................................................................................................................ 1-14
Sample Style Number ..................................................................................................................... 1-15
OPERATIONAL SPECIFICATIONS .................................................................................................... 1-15
Metered Current .............................................................................................................................. 1-15
Metered Frequency ......................................................................................................................... 1-15
Calculated Values and Accuracy .................................................................................................... 1-16
Real-Time Clock.............................................................................................................................. 1-16
IRIG ................................................................................................................................................. 1-16
Contact Inputs ................................................................................................................................. 1-16
87 Differential Functions ................................................................................................................. 1-16
87ND Neutral Differential Function ................................................................................................. 1-17
Time Overcurrent Functions............................................................................................................ 1-18
Time Current Characteristic Curves................................................................................................ 1-18
Instantaneous Overcurrent Functions ............................................................................................. 1-18
Breaker Failure (BF)........................................................................................................................ 1-19
General Purpose Timers (62, 162).................................................................................................. 1-19
Automatic Setting Group Characteristics ........................................................................................ 1-19
BESTlogic........................................................................................................................................ 1-20
GENERAL SPECIFICATIONS ............................................................................................................ 1-20
AC Current Inputs............................................................................................................................ 1-20
Analog to Digital Converter ............................................................................................................. 1-20
Power Supply .................................................................................................................................. 1-20
Output Contacts .............................................................................................................................. 1-20
Control Inputs .................................................................................................................................. 1-20
Communication Ports ...................................................................................................................... 1-21
Display............................................................................................................................................. 1-21
Isolation ........................................................................................................................................... 1-21
Surge Withstand Capability ............................................................................................................. 1-21
Radio Frequency Interference (RFI) ............................................................................................... 1-21
Electrostatic Discharge (ESD)......................................................................................................... 1-21
UL Recognition................................................................................................................................ 1-21
C.S.A. Certification .......................................................................................................................... 1-22
CE Qualified .................................................................................................................................... 1-22
GOST-R Certification ...................................................................................................................... 1-22
DNP Certification............................................................................................................................. 1-22