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Basler BE1-59NC Instruction Manual

Neutral overvoltage relay
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INSTRUCTION MANUAL
FOR
NEUTRAL OVERVOLTAGE RELAY
BE1-59NC
BE1-59NC
NEUTRAL OVERVOLTAGE RELAY
Style No. A1ED1JC0S1F
Serial No. H01234567891
P0046-15
Publication: 9279400990
Revision: B
09/07

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Summary of Contents for Basler BE1-59NC

  • Page 1 INSTRUCTION MANUAL NEUTRAL OVERVOLTAGE RELAY BE1-59NC BE1-59NC NEUTRAL OVERVOLTAGE RELAY Style No. A1ED1JC0S1F Serial No. H01234567891 P0046-15 Publication: 9279400990 Revision: B 09/07...
  • Page 3 INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-59NC Neutral Overvoltage relay. To accomplish this, the following information is provided: • General Information and Specifications • Controls and Indicators • Functional Description • Installation • Testing...
  • 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 BE1-59NC instruction manual (9279400990). Revisions are listed in reverse chronological order. Manual Revision and Date Change • B, 09/07 Updated Output Contacts ratings in Section 1.
  • Page 6 This page intentionally left blank. BE1-59NC Introduction 9279400990 Rev B...

  • Page 7: Table Of Contents

    CONNECTIONS..........................4-9 MAINTENANCE ..........................4-12 STORAGE............................4-12 SECTION 5 • TESTING ..........................5-1 INTRODUCTION..........................5-1 REQUIRED TEST EQUIPMENT ......................5-1 OPERATIONAL TEST ........................5-1 E2 Timing Option.......................... 5-1 D1 Timing Option.......................... 5-3 D2 Timing Option.......................... 5-5 9279400990 Rev B BE1-59NC Introduction...
  • Page 8 This page intentionally left blank. BE1-59NC Introduction 9279400990 Rev B...

  • Page 9: Section 1 • General Information

    • Unit dielectric failure • Capacitor bank insulator failure • Blown fuses BE1-59NC Neutral Overvoltage relays protect for overvoltage due to internal voltage shifts that occur as a result of these types of failures. APPLICATION Capacitor banks are widely used by utilities to maintain specified system voltage. Addition of capacitive loads at appropriate points on the system compensate for heavy inductive loading that normally tends to reduce voltage.

  • Page 10: Input Sensing

    Figure 1-1. Ungrounded 3-Phase, 3-Wire System Input Sensing BE1-59NC Neutral Overvoltage relays receive the input signal from voltage sensing devices connected between the capacitor bank neutral and ground. These voltage sensing devices can be potential transformers or resistor potential devices. Ideally, the voltage across each leg of a capacitor bank is balanced, and the voltage from neutral to ground is zero.

  • Page 11: Model And Style Number

    Figure 1-2. Style Number Identification Chart Style Number Example If a BE1-59NC relay has a style number of A5E–E2J–C0S1F, the relay has the following features: A-------- Single-phase voltage sensing 5 -------- 120 Vac, 60 Hz, nominal 1 to 20 Vac pickup E-------- Two output relays with normally open contacts E2 ------ Setpoint 1 Definite (0.1 to 99.9 sec.), Setpoint 2 Definite (0.1 to 99.9 sec.)

  • Page 12: Specifications

    0.3 Adc 500 Vdc: Make and carry 15 Adc for 0.2 s, carry 7 Adc continuously, break 0.3 Adc Inductive Ratings 120 Vac, 125 Vdc, 250 Vdc: Break 0.3 A (L/R = 0.04) BE1-59NC General Information 9279400990 Rev B...

  • Page 13: Power Supply

    Capability (SWC) Tests for Protective Relays and Relay Systems. Physical Temperature Operating Range: –40 to 70°C (–40 to 158°F) Storage Range: –65 to 100°C (–85 to 212°F) Weight: 13.5 lbs (6.12 kg) Case Size: S1 (See Section 4 for panel cutting/drilling dimensions.) 9279400990 Rev B BE1-59NC General Information...

  • Page 14: Agency Recognition/Certification

    Gosstandart of Russia. Issued by accredited certification body POCC RU.0001.11ME05. CHARACTERISTIC CURVES BE1-59NC overvoltage inverse time curves are illustrated in Figures 1-3 and 1-4. Figure 1-3. Overvoltage Inverse Time Curves, Low Ranges BE1-59NC General Information 9279400990 Rev B...
  • Page 15 Figure 1-4. Overvoltage Inverse Time Curves, High Ranges 9279400990 Rev B BE1-59NC General Information...
  • Page 16 This page intentionally left blank. BE1-59NC General Information 9279400990 Rev B...

  • Page 17: Section 2 • Controls And Indicators

    OVERVOLTAGE 1 PICKUP Adjustment. A multiturn potentiometer that sets the overvoltage comparator threshold voltage. Continuously adjustable for the sensing input voltage range. OVERVOLTAGE 1 PICKUP LED. A red LED that illuminates when overvoltage exceeds the pickup setting. 9279400990 Rev B BE1-59NC Controls and Indicators...
  • Page 18 To ensure proper operation of a current-operated target, the current flowing through the trip circuit must be 200 mA or higher. The target indicators are reset by operating the target reset switch (locator H). BE1-59NC Controls and Indicators 9279400990 Rev B...

  • Page 19: Section 3 • Functional Description

    BE1-59NC Neutral Overvoltage Relay. Internal transformers provide further isolation and step down for the relay logic circuits. BE1-59NC Neutral Overvoltage Relays may also be used in ungrounded systems with voltage transformers connected in wye/broken delta configurations.

  • Page 20: Inverse Time Delay

    200 milliamperes of current flowing in the trip circuit. NOTE Prior to September 2007, the BE1-59NC target indicators consisted of magnetically latched, disc indicators. These mechanically latched target indicators have been replaced by the electronically latched LED targets in use today.

  • Page 21: Section 4 • Installation

    SECTION 4 • INSTALLATION INTRODUCTION BE1-59NC 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 22 Figure 4-1. Panel Cutting/Drilling, Semi-Flush Case BE1-59NC Installation 9279400990 Rev B...
  • Page 23 Figure 4-2. Panel Cutting/Drilling, Double-Ended Projection-Mount Case 9279400990 Rev B BE1-59NC Installation...
  • Page 24 D1427-27 12-04-01 Figure 4-3. Case Dimensions, Side View, Double-Ended Semi-Flush Case BE1-59NC Installation 9279400990 Rev B...
  • Page 25 Figure 4-4. Case Dimensions, Side View, Double-Ended Projection-Mount Case 9279400990 Rev B BE1-59NC Installation...
  • Page 26 Figure 4-5. Case Dimensions, Rear View, Semi-Flush Case BE1-59NC Installation 9279400990 Rev B...
  • Page 27 Figure 4-6. Case Dimensions, Rear View, Projection-Mount Case 9279400990 Rev B BE1-59NC Installation...
  • Page 28 P0002-12 01-31-01 Figure 4-7. Case Cover Dimensions, Front View BE1-59NC Installation 9279400990 Rev B...

  • Page 29: Connections

    14 AWG. Typical control circuit connections are shown in Figure 4-8. Typical protection methods are shown in Figure 4-9. Typical internal connections are shown in Figure 4-10. Figure 4-8. Typical Control Circuit Connections 9279400990 Rev B BE1-59NC Installation...
  • Page 30 Figure 4-9. Typical Protection Methods 4-10 BE1-59NC Installation 9279400990 Rev B...
  • Page 31 Figure 4-10. Typical Internal Connections 9279400990 Rev B BE1-59NC Installation 4-11...

  • Page 32: Maintenance

    MAINTENANCE BE1-59NC 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 33: Section 5 • Testing

    Adjust the voltage source equal the desired overvoltage pickup level for OVERVOLTAGE 2. Step 9. Starting at maximum CW, slowly turn OVERVOLTAGE 2 PICKUP adjust potentiometer R43 CCW until OVERVOLTAGE 2 PICKUP LED just illuminates. 9279400990 Rev B BE1-59NC Testing...
  • Page 34 OVERVOLTAGE 2. Remove, and then reapply the overvoltage at case terminals 6 and 7. Observe the time registered by the counter. Time must equal the setting ±100 milliseconds or 2%, whichever is greater. Figure 5-1. Typical Test Setup Timing Option E2 BE1-59NC Testing 9279400990 Rev B...

  • Page 35: D1 Timing Option

    25 milliseconds (whichever is greater) of the time shown in Table 5-1. Step 12. Remove PS1 and PS2 voltage. Step 13. Adjust the voltage source to equal the desired overvoltage pickup level for OVERVOLTAGE 2. 9279400990 Rev B BE1-59NC Testing...
  • Page 36 OVERVOLTAGE 2. Remove, and then reapply the overvoltage at case terminals 6 and 7. Observe the time registered by the counter. Time must equal the setting ±100 milliseconds or 2%, whichever is greater. Figure 5-2. Typical Test Setup Timing Options D1 or D2 BE1-59NC Testing 9279400990 Rev B...

  • Page 37: D2 Timing Option

    OVERVOLTAGE 2, initiate PS2 and record the time delay. Verify that the time is within 5.0% or 25 milliseconds (whichever is greater) of the time shown in Table 5-1. Step 24. Remove PS1 and PS2 voltage. 9279400990 Rev B BE1-59NC 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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