Basler-electric BE1-40Q User Manual

INSTRUCTION MANUAL FOR LOSS OF EXCITATION RELAY BE1-40Q Publication: 9171500990 Revision: N 12/12

Figure 1-1. Typical Generator Capability Curve Figure 1-2. Normal Operation with Steady State Stability Limit Figure 1-3. An example of BE1-40Q

MODEL AND STYLE NUMBER BE1-40Q electrical characteristics and operational features are defined by a combination of letters and numbers that make up th

SPECIFICATIONS BE1-40Q electrical and physical specifications are listed in the following paragraphs. Current Sensing Unit is designed to operate from

Figure 1-5. Typical Relay Response Time for Time Dial Settings Output Contacts Resistive Ratings 120 Vac: Make, break, and carry 7 Aac continuousl

Target Indicator An electronically latched, manually reset target indicator is optionally available to indicate closure of the trip output contact. Ei

SECTION 2 • CONTROLS AND INDICATORS INTRODUCTION All BE1-40Q controls and indicators are located on the front panel. The controls and indicators are s

Locator Description F Output Test Pushbutton. This pushbutton allows manual actuation of the output relay. Output relay actuation is achieved by ins

SECTION 3 • FUNCTIONAL DESCRIPTION INTRODUCTION BE1-40Q Loss of Excitation relays are static devices that respond to the relation of voltage to curren

Figure 3-2. Phase Shift Example The response of the relay is: Front Panel Pickup Setting = ( )( )°−°8cos8sin3θBABIV Or

sensing current is present. The effect of this switch, in conjunction with the TAP switch, is shown in the Specifications, Table 1-1, and on the front

TARGET INDICATOR A target indicator is an optional component selected when a relay is ordered. The electronically latched and reset target consists of

SECTION 4 • INSTALLATION INTRODUCTION BE1-40Q relays are shipped in sturdy cartons to prevent damage during transit. Upon receipt of a relay, check th

Figure 4-1. Panel Cutting/Drilling, Semi-Flush, S1 Case 3.03 (77)6.06 (154)0.25 (6) diameter, 4 placesCLCut-Out0.575(15)8.63(219)0.552(14)5.69

Figure 4-2. S1 Case Dimensions, Rear View, Double Ended, Semi-Flush Mount 9171500990 Rev N BE1-40Q Installation 4-3

Figure 4-3. S1 Case Dimensions, Side View, Double Ended, Semi-Flush Mount .75(19.1)(157.2)6.19(49.53)1.9510-32 SCREWS(7.9).3110-32 SCREWS(1

Figure 4-4. S1 Case Dimensions, Rear View, Single Ended, Semi-Flush Mount 9171500990 Rev N BE1-40Q Installation 4-5

Figure 4-5. S1 Case Dimensions, Side View, Single Ended, Semi-Flush Mount .75(19.1)(157.2)6.19(49.53)1.9510-32 SCREWSMOUNTING PANEL(55.75)2

Figure 4-6. Panel Cutting/Drilling, Double Ended, Projection Mount, S1 Case 9171500990 Rev N BE1-40Q Installation 4-7

Figure 4-7. S1 Case Dimensions, Rear View, Double Ended, Projection Mount 4-8 BE1-40Q Installation 9171500990 Rev N

Figure 4-8. S1 Case Dimensions, Side View, Double Ended, Projection Mount .75(19.1)(157.2)6.19(49.53)1.9510-32 SCREWS(7.9).3110-32 SCREWS(

9171500990 Rev N BE1-40Q Introduction i INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-40

Figure 4-9. Panel Cutting/Drilling, Single Ended, Projection Mount, S1 Case 4-10 BE1-40Q Installation 9171500990 Rev N

Figure 4-10. S1 Case Dimensions, Rear View, Single Ended, Projection Mount 9171500990 Rev N BE1-40Q Installation 4-11

Figure 4-11. S1 Case Dimensions, Side View, Single Ended, Projection Mount (157.2)6.19(49.53)1.9510-32 SCREWSMOUNTING PANEL(55.75)2.195P00

Figure 4-12. S1 Case Cover Dimensions, Front View P0066-689171500990 Rev N BE1-40Q Installation 4-13

CONNECTIONS Be sure to check the model and style number of a relay before connecting and energizing the relay. Incorrect wiring may result in damage t

Figure 4-14. Output Connections Figure 4-15. Interconnection with Current Operated Targets 9171500990 Rev N BE1-40Q Installation 4-15

Figure 4-16. Interconnection with Current Operated Targets and Power Supply Status Output 4-16 BE1-40Q Installation 9171500990 Rev N

Figure 4-17. Interconnection with Internally Operated Target and Auxiliary Output Contacts (SPDT) MAINTENANCE BE1-40Q relays require no preventative

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SECTION 5 • SETTING AND TESTING SETTING Setting the pickup value of BE1-40Q relays is facilitated by using the capability curves supplied by the gener

ii BE1-40Q Introduction 9171500990 Rev N First Printing: November 1986 Printed in USA © 2012 Basler Electric, Highland Illinois 62249 USA All Right

= (13.33 Mvar) 128003 = 1804 A Step 3. Specify a BE1-40Q relay having a nominal sensing range of 120 VLL (for a PT

Figure 5-2. Test Circuit Connections Step 5. Adjust the voltage source to the nominal value of the sensing input as designated by the second digit

Step 9. Repeat Steps 7 and 8 for each TAP setting, verifying both the HI and LOW range setpoints. The pickup tolerance should be ±2% of the front pan

Characteristic Data Step 1. Adjust the current source phase angle for each of the values indicated in Table 5-3. Record the magnitude of current requ

Step 3. The results from the above calculations can now be plotted on a graph of the complex power plane. Graph Example Given: Relay style number

Figure 5-3. BE1-40Q Relay Characteristics Plotted on Complex Power Plane Figure 5-4. Blank Graph 9171500990 Rev N BE1-40Q Setting and Testing

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12570 State Route 143 Highland IL 62249-1074 USA Tel: +1 618.654.2341 Fax: +1.618.654.2351 email: [email protected] P.A.E. Les Pins 67319 Wasselonne C

9171500990 Rev N BE1-40Q Introduction iii REVISION HISTORY The following information provides a historical summary of the changes made to the BE1-40

iv BE1-40Q Introduction 9171500990 Rev N Manual Revision and Date Change F, 01/91  Pages 1-3, 1-5 (Style Chart), 1-7 2-1 (Item H), 4-4 (step 3), 4

9171500990 Rev N BE1-40Q Introduction v CONTENTS SECTION 1 • GENERAL INFORMATION ...

vi BE1-40Q Introduction 9171500990 Rev N SECTION 5 • TESTING ......

SECTION 1 • GENERAL INFORMATION PURPOSE Loss of excitation protection is applied on nearly all synchronous generators. Reduced or complete loss of exc