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Basler BE1-51 Manual

Time overcurrent relay be1-51 series
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The BE1-51 Series of Time Overcurrent Relays is microprocessor-based
to provide versatile overload and fault protection on 50Hz or 60Hz systems.
One relay can simultaneously monitor three phases plus neutral
currents.
16 field selectable characteristic curves, including inverse, definite,
l2t, and BS 142 functions.
Wide range sensing inputs with continuously adjustable pickup.
Up to two instantaneous elements available.
Large array of options, including voltage control and voltage
restraint.
Five year warranty.
ADDITIONAL INFORMATION
INSTRUCTION MANUALS
Request publication:
TIMING CURVES
Request publication 9137200897
STANDARDS, DIMENSIONS
Request Bulletin SDA

ADVANTAGES

BE1-51: 9137200997
BE1-51/27C: 9137200998
BE1-51/27R: 9137200999
ACCESSORIES
&
§l
Basler Electric
P. 0. BOX 269 HIGHLAND, ILLINOIS 62249, U.S.A.
TIME OVERCURRENT
PHONE 618·654·2341
FAX 618·654·2351
BE1-51
BE1-51/27C
BE1-51/27R
RELAY
Page2
Pages
3-6
EXTERNAL
Pages
and
7
8
INFORMATION
Pages 9-12
UDA-9
12-00

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Summary of Contents for Basler BE1-51

  • Page 1 BE1-51 BE1-51/27C BE1-51/27R TIME OVERCURRENT RELAY The BE1-51 Series of Time Overcurrent Relays is microprocessor-based to provide versatile overload and fault protection on 50Hz or 60Hz systems. APPLICATION Page2 ADVANTAGES One relay can simultaneously monitor three phases plus neutral currents.
  • Page 2 VOLTAGE CONTROL The BE1-51 family of time overcurrent relays provides single or multiple phase current sensing within a single The BE1-51/27C Time Overcurrent Relay provides unit. These relays feature a pickup setting range of 0.5 to...
  • Page 3 TAP CAL control (described below), this allows simultaneous precise settings for all phase elements. A similar set of controls independently adjusts neutral Voltage Sensing (BE1-51/27C and BE1-51/27R) pickup (if specified). The voltage input (when specified) imposes a less than nominal burden on the sensing transformers.
  • Page 4 BE1�1, BE1�1�7C, BE1�1�7R SPECIFICATIONS, continued OPTION 3:.:.:r RELAY sENSING IINPUT(S) BE1-51/27C AND BE1-51 /27R ONLY TO TRIP ±12VDC *OR* CIRCUIT I INTERNAL POWER INST. 2 INPUT OPERATING OUTPUT VOLTA GES RELAY POWER SUPPLY STATUS .._ __ _ PUSH TO...
  • Page 5 SELECTOR selector settings. When the TAP CAL control is fully The BE1-51 relays include up to 16 individual time curve clockwise, the actual pickup will be within ±5% of the types selected by means of a switch directly behind the front indicated TAP selector setting.
  • Page 6 SURGE WITHSTAND pickup point adjustment for a second instantaneous Qualified to ANSI/IEEE C37.90.1-1989 Standard function. (This option is available on all BE1-51 relays Surge Withstand Capability (SWC)Test for Protective and single-phase BE1-51 /27C and BE1-51 /27R units.) Relays and Relay Systems.
  • Page 7 BE1-51, BE1-51/27C, BE1-51/27R CONNECTIONS & £ 19 ' � &� &� • LEGEND OVERCURRENT RELAY SPDT RELA� AUXILIARY RELAY OPTION 3-5 ¥c BREAKER TRIP COIL LEGEND N. O.IF AUX. RELAY OPTION OVERCURRENT RELAY 3-1. N. C. IF AUX. RELAY OPTION 3-2...
  • Page 8 BE1-51, BE1-51/27C, BE1-51/27R CONNECTIONS, continued 51/27 OPEN DELTA CONNECTION 120V L-L Figure 8 - Single-Phase Voltage Sensing Figure 9 - 3-Phase 3-Wire Voltage Sensing (BE1-51 /27C and BE1-51 /27R) (BE1-51 /27C and BE1-51 /27R) LEGEND 51/27 OVERCURRENT RELAY WITH VOLTAGE CONTROL/...
  • Page 9 SAMPLE STYLE NUMBER: H3E Z3P B1 C1 F output relay. The style number above describes a BE1-51 Time Overcurrent with Voltage Control Relay having the The relay case is configured for flush following features.
  • Page 10 BE1-51, BE1-51/27C, BE1-51/27R ORDERING, continued STYLE NUMBER IDENTIFICATION CHART D D D D D D D D D D D a & POWER SENSING INPUT TIMING OUTPUTS OPTION OPTION SUPPLY TYPE 0) None 0) 48 G)Three-phase current E) NO contacts...
  • Page 11 BE1-51, BE1-51/27C, BE1-51/27R ORDERING, continued STYLE NUMBER IDENTIFICATION CHART D D D D D D D D D D D BE 1 -5 1 / 2 7C 1 & a_& POWER SENSING INPUT TIMING OUTPUTS OPTION OPTION SUPPLY TYPE None...
  • Page 12 BE1-51, BE1-51/27C, BE1-51/27R ORDERING, continued STYLE NUMBER IDENTIFICATION CHART 1.& POWER OUTPUTS OPTION SENSING INPUT TYPE SUPPLY Single-Phase Current E) NO contacts 48 Vdc 0) None (Voltage restramt ls120Vacnommal, 60Hz) 1) One 1nst N) (Voltage restra1ntis 100Vac nom1nal, 50Hz) NC contacts...

This manual is also suitable for:

Be1-51/27cBe1-51/27r

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