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AC-PRO
Utility Relay Company AC-PRO - User Manual
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U
RC
Utility Relay Company
a
c-pro
®
i-ac-pro-QT
ac
trip
unit
instruction
manual
State of the art technology for low
voltage circuit breaker r
etrofitting
Chagrin Falls, OH 44023
Phone: 888.289.2864
www
.utilityrelay
.com
2
Table of Contents
Main Page
Default Chapter
3
Table of Contents
3
1 Introduction
5
2 UL/ULC Classification
5
3 Trip Unit Power
5
Current Transformer (CT) Power
5
Battery Power
5
PT Module Power
6
Auxiliary Power
6
4 External Connections
6
Breaker Wiring Harness
6
Security Key
6
AC-PRO Top View
6
Push Button "Key
6
5 AC-PRO Front View
7
AC-PRO Horizontal Front View
7
AC-PRO Vertical Left Front View
7
Character Display
8
Pick-Up LED
8
Self Test LED
8
Display Contrast
8
UP Push Button
8
DOWN Push Button
8
SAVE Push Button
8
REVIEW Push Button
8
6 QUICK-TRIP System
9
QUICK-TRIP Basics
9
QUICK-TRIP Connections
9
QUICK-TRIP Installation
10
QUICK-TRIP Drilling Plan
10
Pro-Display Mounting
10
QUICK-TRIP & Pro-Display Operation
11
7 Commissioning the AC-PRO
11
Powering-Up the Trip Unit
11
Internal Battery
11
External Power
11
Security Key
11
CT Rating
12
Long Time (LT) Pick-Up Setting
12
Long Time (LT) Delay Setting
12
Short Time (ST) Pick-Up Setting
12
Short-Time (ST) Delay Setting
12
Short Time (ST) I T
12
Instantaneous (I) Pick-Up Setting
13
Ground Fault (GF) Pick-Up Setting
13
Ground Fault (GF) Delay Setting
13
Ground Fault (GF) I T
13
Phase Unbalance (U/B) Pick-Up
13
Phase Unbalance (U/B) Delay
14
Address
14
Reply Delay
14
QUICK-TRIP Ground Fault (QT GF)
14
QUICK-TRIP Instantaneous (QT I)
14
Thermal Memory
15
Exit Procedure
15
8 Changing Settings
16
9 Last Trip Data Recall
17
10 Normal Operation
18
11 Testing
18
Commission the Trip Unit
18
LT Trip Test
18
ST Trip Test
19
I Trip Test
19
GF Trip Test
19
QT GF Trip Test
19
CT Phasing Test for GF
19
Phase a & B, CT Phasing Test
19
Phase B & C, CT Phasing Test
19
QT I Trip Test
20
U/B Trip Test
20
Erase Last Trip Data
20
U/B Test
20
12 Secondary Injection Testing
21
AC-PRO ® Secondary Injection Test Set
21
Standard Relay Test Set
21
LT Delay Testing Chart
22
13 Ratings
23
14 Warranty
23
15 Time-Current Curves
23
LT Trip Time
24
ST Trip Time
24
GF Trip Time
25
U/B Trip Time
25
16 Error Message Summary
25
Actuator Not Connected
25
Memory Error
25
Ac-Pro
25
17 Battery Replacement
26
Typical Wiring Diagram
27
Overload TCC
29
U/B & Gf Tcc
31
Quick-Trip ® Gf & I Tcc
33
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Utility Relay Company AC-PRO Specifications
General
Brand
Utility Relay Company
Model
AC-PRO
Category
Control Unit
Language
English
Need help?
General
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