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Basler BE1-59N Instruction Manual

Ground fault overvoltage relay
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INSTRUCTION MANUAL
FOR
GROUND FAULT OVERVOLTAGE RELAY
BE1-59N
P0050-20
Publication: 9171400990
Revision: G
09/07

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Summary of Contents for Basler BE1-59N

  • Page 1 INSTRUCTION MANUAL GROUND FAULT OVERVOLTAGE RELAY BE1-59N P0050-20 Publication: 9171400990 Revision: G 09/07...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-59N Ground Fault Overvoltage Relay. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation •...
  • Page 4 September 2007 CONFIDENTIAL INFORMATION of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not be used in any manner detrimental to the interest of Basler Electric.
  • Page 5 REVISION HISTORY The following information provides a historical summary of the changes made to the BE1-59N instruction manual (9171400990). Revisions are listed in reverse chronological order. Manual Revision and Date Change • G, 09/07 Updated Output Contact ratings in Section 1.
  • Page 6 This page intentionally left blank. BE1-59N Introduction 9171400990 Rev G...

  • Page 7: Table Of Contents

    SECTION 4 • INSTALLATION........................4-1 INTRODUCTION..........................4-1 RELAY OPERATING GUIDELINES AND PRECAUTIONS ............... 4-1 MOUNTING............................4-1 CONNECTIONS..........................4-9 MAINTENANCE ..........................4-12 STORAGE............................4-12 SECTION 5 • TESTING ..........................5-1 INTRODUCTION..........................5-1 OPERATIONAL TEST ........................5-1 9171400990 Rev G BE1-59N Introduction...
  • Page 8 This page intentionally left blank. BE1-59N Introduction 9171400990 Rev G...

  • Page 9: Section 1 • General Information

    Sensitive voltage relays can be used to detect ground faults where the fault current is very small. The BE1-59N Ground Fault Overvoltage Relay is especially suited to this task.

  • Page 10: Ungrounded Systems

    Grounded wye/broken delta voltage transformers act as a zero sequence filters by summing the three phase voltages. Under normal conditions, this sum is zero. When a ground fault occurs, the BE1-59N Ground Fault Overvoltage Relay will detect the presence of the secondary zero sequence voltage (3V The BE1-59N Ground Fault Overvoltage Relay greatly reduces the risk of equipment damage by detecting and isolating the first ground on an ungrounded system.

  • Page 11: Style Number Example

    Figure 1-2. BE1-59N Style Identification Chart Style Number Example If a BE1-59N relay has a style number of A5F–F6J–D2S3F, the relay has the following features: A-------- Single-phase voltage sensing input 5 -------- 120 Vac, 60 Hz nominal sensing voltage input with 1 to 20 Vac pickup range...

  • Page 12: Specifications

    SPECIFICATIONS BE1-59N electrical and physical specifications are listed in the following paragraphs. Voltage Sensing Inputs Maximum continuous rating: 360 Vac for 100/120 Vac input, 480 Vac for 200/240 Vac input, with a maximum burden of 2 VA for each input.

  • Page 13: Power Supply

    144 MHz and 440 MHz, with the antenna located six inches from the relay in both horizontal and vertical planes. Surge Withstand Capability: Qualified to IEEE C37.90.1-1989, Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems. 9171400990 Rev G BE1-59N General Information...

  • Page 14: Physical

    Gost-R Certification: Gost-R certified, No. POCC US.ME05.B03391; complies with the relevant standards of Gosstandart of Russia. Issued by accredited certification body POCC RU.0001.11ME05. P0050-21 Voltage Difference from Pickup Figure 1-3. Overvoltage Inverse Time Curves BE1-59N General Information 9171400990 Rev G...
  • Page 15 SCALE A SCALE B SCALE C SCALE D Voltage Difference from Pickup Figure 1-4. Undervoltage Inverse Time Curves 9171400990 Rev G BE1-59N General Information...
  • Page 16 This page intentionally left blank. BE1-59N General Information 9171400990 Rev G...

  • Page 17: Section 2 • Controls And Indicators

    SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION All BE1-59N controls and indicators are located on the front panel. The controls and indicators are shown in Figure 2-1 and described in Table 2-1. Figure 2-1 illustrates a relay with the maximum number of controls and indicators.
  • Page 18 Inhibit Pickup Adjustment. Multiturn potentiometer that sets the inhibit comparator threshold so that whenever generator voltage falls below the set point, the (optional) undervoltage measuring circuitry is inhibited from operation. BE1-59N Controls and Indicators 9171400990 Rev G...

  • Page 19: Section 3 • Functional Description

    SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION BE1-59N relay functions are illustrated in Figure 3-1 and described in the following paragraphs. Figure 3-1. Function Block Diagram INPUTS The relay senses the level of voltage developed across a resistor connected in the neutral-grounding transformer secondary.

  • Page 20: Inverse Time Delay (Optional)

    (if present) the auxiliary output contact. To prevent accidental operation, the pushbuttons are recessed behind the front panel and are depressed by inserting a thin, non-conducting rod through an access hole in the front panel. BE1-59N Functional Description 9171400990 Rev G...

  • Page 21: Power Supply Status Output

    The power supply status relay has a set of normally closed contacts and energizes when operating power is applied to the BE1-59N. If relay operating power is lost or either side of the power supply output (+12 Vdc or –12 Vdc) fails, the power supply status relay de-energizes and opens the power supply status output contacts.
  • Page 22 This page intentionally left blank. BE1-59N Functional Description 9171400990 Rev G...

  • Page 23: Section 4 • Installation

    SECTION 4 • INSTALLATION INTRODUCTION BE1-59N relays are shipped in sturdy cartons to prevent damage during transit. Upon receipt of a relay, check the model and style number against the requisition and packing list to see that they agree. Inspect the relay for shipping damage.
  • Page 24 Figure 4-1. Panel Cutting/Drilling, Semi-Flush Case BE1-59N Installation 9171400990 Rev G...
  • Page 25 Figure 4-2. Panel Cutting/Drilling, Double-Ended Projection-Mount Case 9171400990 Rev G BE1-59N Installation...
  • Page 26 D1427-27 12-04-01 Figure 4-3. Case Dimensions, Side View, Double-Ended Semi-Flush Case BE1-59N Installation 9171400990 Rev G...
  • Page 27 Figure 4-4. Case Dimensions, Side View, Double-Ended Projection-Mount Case 9171400990 Rev G BE1-59N Installation...
  • Page 28 Figure 4-5. Case Dimensions, Rear View, Semi-Flush Case BE1-59N Installation 9171400990 Rev G...
  • Page 29 Figure 4-6. Case Dimensions, Rear View, Projection-Mount Case 9171400990 Rev G BE1-59N Installation...
  • Page 30 P0002-12 01-31-01 Figure 4-7. Case Cover Dimensions, Front View BE1-59N Installation 9171400990 Rev G...

  • Page 31: Connections

    N.O. contacts shown. Also available with N.C. contacts. Target available with N.O. contact only. Optional auxiliary overvoltage relay available with N.O. or N.C. contacts. Optional auxiliary undervoltage relay available with N.O. or N.C. contacts. Figure 4-8. Control Circuit Diagram 9171400990 Rev G BE1-59N Installation...
  • Page 32 Figure 4-9. Sensing Input Connections 4-10 BE1-59N Installation 9171400990 Rev G...
  • Page 33 Figure 4-10. Typical Internal Connection Diagram with Optional, Normally-Open Output Contacts 9171400990 Rev G BE1-59N Installation 4-11...

  • Page 34: Maintenance

    MAINTENANCE BE1-59N relays require no preventative maintenance other than a periodic operational check. If the relay fails to function properly, contact Technical Sales Support at Basler Electric to coordinate repairs. STORAGE This protective relay contains aluminum electrolytic capacitors which generally have a life expectancy in excess of 10 years at storage temperatures less than 40°C (104°F).

  • Page 35: Section 5 • Testing

    Perform test setup (Figure 5-1) and apply power to the relay. Verify that the POWER LED is ON, and that the power supply status contact is open. Figure 5-1. Typical Test Setup Step 2. Set all TIME DIALS (if any) to the zero position. 9171400990 Rev G BE1-59N Testing...
  • Page 36 Step 15. Adjust the UNDERVOLTAGE INHIBIT potentiometer so that the INHIBIT LED just illuminates. At this time, the UNDERVOLTAGE LED should extinguish, and the undervoltage relay(s) should de-energize. Rotate the UNDERVOLTAGE INHIBIT potentiometer to maximum CW to disable the inhibit function during the remainder of this test procedure. BE1-59N Testing 9171400990 Rev G...
  • Page 37 S1. The time recorded by the counter should be within 5% or 25 milliseconds (whichever is greater) of the time given in Figure 1-4. Step 24. By changing ΔV, steps 22 and 23 may be repeated to verify any segment of the characteristic curve that is of interest. 9171400990 Rev G BE1-59N Testing...
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  • Page 39 ROUTE 143, BOX 269 HIGHLAND, IL 62249 USA http://www.basler.com, info@basler.com PHONE +1 618-654-2341 FAX +1 618-654-2351...

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