Date Code 20011112 Introduction and Specifications i
SEL-311L Instruction Manual
TABLE OF CONTENTS
SECTION 1: INTRODUCTION AND SPECIFICATIONS......................1-1
SEL-311L Relay Models ..............................................................................................................1-1
Instruction Manual Sections Overview ........................................................................................1-2
Applications..................................................................................................................................1-5
AC/DC Connections .....................................................................................................................1-7
Communications Connections for Control, Configuration, and Interrogation.............................1-9
Relay Specifications ...................................................................................................................1-10
General Specifications ........................................................................................................1-10
Processing Specifications ...................................................................................................1-13
Relay Element Settings Ranges and Accuracies ................................................................1-14
FIGURES
Figure 1.1: Typical Two-Terminal Application With Hot Standby Channel and Tapped Load ............1-5
Figure 1.2: Typical Two-Terminal Application With Voltage Inputs....................................................1-6
Figure 1.3: Typical Three-Terminal Application With Optional Third Communications
Channel ..........................................................................................................................1-6
Figure 1.4: SEL-311L Relay Inputs and Outputs ...................................................................................1-7
Figure 1.5: SEL-311L Relay Communications Interfaces......................................................................1-8
Figure 1.6: SEL-311L Relay Communications Connections Examples.................................................1-9
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