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JK 720
Toshiba JK 720 Instruction Manual
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Document: V
F01
0
H0
2 Rev.
6
I
NSTRU
CT
ION M
ANU
AL
INST
A
LL
A
TION
– OPERATION –
MAINTENANCE
JK Series
720
Ampere Medium Voltag
e Controllers
Issued:
4
/
20
2
Table of Contents
Table of Contents
10
Receiving, Handling/Moving, and Unpacking
12
Receiving and Unpacking
12
Handling and Moving
12
Using a Forklift
12
Overhead Lifting
13
Initial Inspection
13
Location
13
Storage
13
Indoor Equipment
13
Outdoor Equipment
14
Routine Inspection
14
Installation
14
Rating Verification
14
Location
14
Service Conditions
15
Installation Site Preparation
15
Mounting
16
Additional Cabinet Entries
16
Ground Connections
16
Medium Voltage Power Connections
18
Incoming Line
20
Load Connections
20
Pre-Energization Check
21
General
21
Wiring Check
22
Device/Mechanism Checks
23
Electrical Checks
24
General Description
25
Construction
25
Controller Compartment
26
Isolation Switch
26
Vacuum Contactor
27
Outgoing Load Connections
27
Control Power/Potential Transformers
28
Operating Handle
29
Interlocks - Mechanical
29
Door Interlock
29
Handle Interlock
30
Vacuum Contactor Interlock
30
Interlocks - Electrical
31
Control Power Interlock (CPI)
31
Test Power Interlock (TPI)
31
Low Voltage Compartment
32
Main Bus Compartment
33
Contactor Ratings
34
Controller Ratings
35
Horsepower Table
36
Operation
37
Initial Energization
37
Maintenance
38
Maintenance Record
38
General Inspection
39
Electrical Joints
39
Power Fuses
40
Vacuum Contactor
40
Isolation Switch
41
Switch Handle Mechanism
42
Interlocks
43
Control Power/Potential Transformers
43
Maintenance after a Fault Condition
44
Enclosure
44
Isolation Switch
44
Fuse Mounting
44
Terminals and Internal Conductors
44
Overload Relay
44
Vacuum Contactor
44
Return to Service
44
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Instructions
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4
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Toshiba JK 720 Specifications
General
Type
Programmable Logic Controller (PLC)
Output Voltage
24V DC
Number of Inputs
16
Number of Outputs
16
Memory Capacity
8 KB
Operating Temperature
0°C to 55°C
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