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Secondary injection test set for ac-pro trip units
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Table of Contents
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Section 1.0 Introduction
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Overview
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B-291 Test Set Controls
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Power
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Time Display
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Timer Clear Push Button
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Start Push Button and LED
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Stop Push Button
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Test Current Display
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Current Preset Push Button
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Amp Coarse Adjust
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Amp Fine Adjust
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Phase Selector
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Frequency Selector
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Contrast Push Button
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Operation
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Connecting to the AC-PRO
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Select Frequency
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Calculate Long Time (LT) Pick-Up Secondary Current
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Long Time (LT) Pick-Up Test
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Long Time (LT) Time Test
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Calculate Short Time (ST) Pick-Up Secondary Current
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Short Time (ST) Pickup Test
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Short Time Test
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Calculate Instantaneous (I) Pick-Up Secondary Current
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Instantaneous (I) Pickup Test
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Calculate Ground Fault (GF) Pick-Up Secondary Current
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Ground Fault (GF) Pick-Up Test
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Ground Fault Time Test
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Unbalance
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Error/Fault Conditions
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Current Error
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Thermal Limit
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Ground Fault/Unbalance TCC
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Overload TCC
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test set
i-ac-pro-ts
ac-pro trip unit
instruction manual
Secondary Injection Test Set
for AC-PRO Trip Units
Utility Relay Company
U R C
C h a g r i n F a l l s , O H 4 4 0 2 3
P h o n e : 8 8 8 . 2 8 9 . 2 8 6 4
w w w . u t i l i t y r e l a y . c o m
Table ofContents
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Table of Contents
Related Manuals for URC I-AC-PRO-TS
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Test Equipment URC AC-PRO-II Quick Start Manual
Ac trip unit (16 pages)
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Test Equipment URC B-292 Instruction Manual
Secondary injection test set for ac-pro & ac-pro-ii trip units (36 pages)
Summary of Contents for URC I-AC-PRO-TS
- Page 1 Secondary Injection Test Set for AC-PRO Trip Units Utility Relay Company U R C C h a g r i n F a l l s , O H 4 4 0 2 3 P h o n e : 8 8 8 .
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Page 2: Table Of Contents
Table of Contents Page Section Introduction ....................2 Overview ....................2 B-291 Test Set Controls ................2 Power ..................2 Time Display ................2 Timer Clear Push Button............2 Start Push Button and LED............2 Stop Push Button ...............3 Test Current Display ..............3 Current Preset Push Button .............3 Amp Coarse Adjust ..............3 Amp Fine Adjust................3 3.10... -
Page 3: Section 1.0 Introduction
1.0 Introduction 3.0 B-291 Test Set Controls The Model B-291 Secondary Injection Test Set Power is a single-phase test set specifically designed for testing the operation of the Utility Relay Power to the test set is controlled with the Co., AC-PRO microcontroller based trip units. manual “On-Off”... -
Page 4: Stop Push Button
Stop Push Button Current Preset Push Button The “Stop” push button stops the test current While the “Current Preset” push button is flow and simultaneously freezes the timer. pushed, the test set will display the current setting (from Amp Coarse and Fine adjust pots) Test Current display in the Test Current LCD display without actually driving any current to the AC-PRO. -
Page 5: Frequency Selector
3.11 Frequency Selector 4.0 Operation The “Frequency (Hertz)”selector switch is used 4.1 Connecting to the AC-PRO to select the AC test current frequency. This is used to select 25, 40, 50 or 60 Hz. The Test Harness makes the connections from the test set to the AC-PRO (including power for the AC-PRO). -
Page 6: Calculate Long Time (Lt) Pick-Up Secondary Current
4.3 Calculate Long Time (LT) Pick-Up 4.4 Long Time (LT) Pick-Up Test Secondary Current To test the LT pick-up: Calculate the secondary LT pick-up current ) as follows: 1) Hold down the Current Preset while adjusting the Amp Coarse and Fine pots until the display shows about 90% of For 1-Amp AC-PRO: = LT Pick-UP... -
Page 7: Long Time (Lt) Time Test
4.5 Long Time (LT) Time Test 4.6 Calculate Short Time (ST) Pick-Up Secondary Current To test the LT time delay trip: Calculate the ST secondary pick-up current 1) The first step is to select a test current. ) as follows: For example, three times the LT pick-up (3X on the TCC in Figure 4). -
Page 8: Short Time (St) Pickup Test
4.7 Short Time (ST) Pick-Up Test 4.8 Short Time (ST) Test To test the ST pick-up: To test the ST time delay trip: 1) Hold down the Current Preset while 1) The first step is to select a test current. adjusting the Amp Coarse and Fine pots For example, 150% of the ST pick-up. -
Page 9: Calculate Instantaneous (I) Pick-Up Secondary Current
4.9 Calculate Instantaneous (I) Pick-Up 4.10 Instantaneous (I) Pick-Up Test Secondary Current To test the I pick-up: Calculate the I secondary pick-up current (I as follows: 1) Hold down the Current Preset while adjusting the Amp Coarse and Fine pots to 90% of the calculated I For 1-Amp AC-PRO: SPU. -
Page 10: Calculate Ground Fault (Gf) Pick-Up Secondary Current
4.11 Calculate Ground Fault (GF) Pick-Up 4.12 Ground Fault (GF) Pick-Up Test Secondary Current To test the GF pick-up: Calculate the GF secondary pick-up current ) as follows: 1) Set the phase selector switch to GF. 2) Hold down the Current Preset while adjusting the Amp Coarse and Fine pots For 1-Amp AC-PRO: = GF Pick-Up... -
Page 11: Ground Fault Time Test
4.13 Ground Fault (GF) Time Test 5.0 Error/fault Conditions To test the GF time delay trip: 5.1 Current Error 1) The first step is to select a test current. The test set monitors the current level while a For example, 150% of the GF pick-up. test is in progress. - Page 12 POWER CABLE/FUSE HOLDER STOP PUSH BUTTON 13 AMP COARSE POT Power cable connector with main fuse. Stops test current flow and freeze the This is used to make large adjustments (120Vac 50/60Hz). in current. timer. COOLING AIR-FLOW EXHAUST CLEAR PUSH BUTTON 14 AMP FINE POT Cooling air for the test set exits via this Resets the timer to zero.
- Page 13 AC-PRO on breaker A) TEST SET HARNESS. B) TEST SET HARNESS POWER PLUG TO AC-PRO. C) TEST SET HARNESS MAIN CONNECTOR TO AC- PRO. D) TEST SET HARNESS ACTUATOR CONNECTOR. E) CIRCUIT BREAKER WIRING HARNESS (PREVIOUSLY CONNECTED TO THE AC-PRO). Figure 2 AC-PRO / Breaker Test Set Connections...
