
BE1-25/79TR General Information
1-12
Counter Enable (CE).
Contact Sensing Inputs - Continued
High Speed Enable (HSR).
Block High Speed Reclose (BLK) for 3 phase faults.
Drive to Lockout (DTL).
Drive to Reset (DTR).
Serial Port Communications Front and rear panel mounted RS 232-C connectors (9-pin, D
subminiature female) for setting, testing, and data collection.
Time Delays
Refer to Table 1-2. Timing tolerance for HSR and SYNC timers is
±5% or two cycles, whichever is greater. All other timer tolerances
are ±5% or 50 milliseconds, whichever is greater.
Table 1-2. Time Delay Ranges
Number of Delays
Function
Range
2
Line Test (LT1, LT2)
1-999 seconds
2
Restore Power (RP1, RP2)
1-999 seconds
1*
Parallel (PAR)
1-999 seconds
1
Sync-Check (SYNC)
1-999 cycles
1
High Speed Reclose (HSR)
1-999 cycles
1**
Power Fail (PF)
1-99 seconds
2
Reset Time (RST1, RST2)
1-999 seconds
1
Lockout Time (LO)
1-999 seconds
1***
Master Time (MASTER)
1-999 seconds
1
Close Output (CLOSE TD)
1-999 seconds
1
Loss of Potential (LOP TD)
0.01-9.99 seconds
*
If the breaker is intended to operate open (parallel disabled) then the relay will go to reset
after the master timer times out and RST2 timer expires. The bus and line will both be
energized with the PAR input open.
**
The power failure function is a tripping function and will not start the master timer.
***
Master timer used is similar in principle to the mechanical repeat cycle (R.C.) timer in which
various operations are permitted as the cam rotates. If lockout has not been reached in the
preset time allotted, the master timer will time out and determine whether to go to lockout or
reset depending upon the state of the breaker and if the bus and line are Live with PAR input
disabled.
Outputs
All outputs are MOV protected.
(Isolated)
Trip, close, sync-check, relay trouble alarm (RT ALM) and memory.
Trip
One tripping contact with N.O. configuration.
Close
One closing contact with N.O. configuration.
Sync
The sync-check (PAR) function with voltage measuring circuits has
one output relay with a N.O. configuration.
Memory
There are four memory output relays, each with selectable N.O. or
N.C. contacts for line test or restore power.
Содержание BE1-25/79TR
Страница 1: ...05647 6 10 07 14 19 241 5 0 4 15 0 4 64 Publication 9 2787 00 990 Revision B 07 95...
Страница 23: ...BE1 25 79TR Controls and Indicators 2 3 Figure 2 3 Location of Controls and Indicators Control Panel...
Страница 25: ...BE1 25 79TR Controls and Indicators 2 5 Figure 2 5 Vertical BE1 25 79TR Sync Check Reclosing Relay Front View...
Страница 26: ...BE1 25 79TR Controls and Indicators 2 6 Figure 2 6 Vertical BE1 25 79TR Sync Check Reclosing Relay Rear View...
Страница 27: ...BE1 25 79TR Controls and Indicators 2 7 Figure 2 7 Front Panel Vertical Mount Relay...
Страница 29: ...BE1 25 79TR Functional Description 3 2 Figure 3 1 Functional Block Diagram...
Страница 60: ...BE1 25 79TR Installation 4 8 Figure 4 9 RS 232 Interconnection Diagram For IBM Type Computers...
Страница 61: ...BE1 25 79TR Installation 4 9 Figure 4 10 RS 232 Interconnection Diagram For Protective Relay Terminals...
Страница 63: ...BE1 25 79TR Testing 5 2 REAR VIEW FRONT VIEW Figure 5 1 BE1 25 79TR Test Simulator...
Страница 64: ...BE1 25 79TR Testing 5 3 Figure 5 2 BE1 25 79TR Test Simulator Schematic Diagram Sheet 1 of 2...
Страница 65: ...BE1 25 79TR Testing 5 4 Figure 5 3 BE1 25 79TR Test Simulator Schematic Diagram Sheet 2 of 2...
Страница 66: ...BE1 25 79TR Testing 5 5 Figure 5 4 Test Setup Diagram...