Sign In
Upload
Manuals
Brands
ABB Manuals
Circuit breakers
VHK 21
ABB VHK 21 Manuals
Manuals and User Guides for ABB VHK 21. We have
1
ABB VHK 21 manual available for free PDF download: Installation & Maintenance Instructions Manual
ABB VHK 21 Installation & Maintenance Instructions Manual (34 pages)
Medium Voltage Vacuum Power Circuit Breakers
Brand:
ABB
| Category:
Circuit breakers
| Size: 0.85 MB
Table of Contents
Table of Contents
2
Introduction
4
Receiving and Storage
4
Installation
4
General
4
General Inspection
5
Vacuum Interrupter Examination
5
Barrier and Insulation Inspection
5
Installing Front Barrier
5
Manual Operation for Inspection
5
Padlock Provision
6
Interlocks
6
Installing Circuit Breaker into Compartment
8
Circuit Breaker Removal - Model 21
8
Removal from Connect Position
8
Removal from Test Position
9
Removal from Disconnect Position
9
Safe Operations Recommendations
9
Adjustments, Tests and Periodic Maintenance
9
Insulation Cleaning
10
DC Millivolt Drop Test / Micro-Ohm Test
10
Contact Wear and Contact Pressure
10
Contact Gap
10
Contact Gap Check
11
Contact Sequencing
11
Closing and Opening Times
12
Closing and Opening Speeds
12
Operating Mechanism
12
Trip Latch Engagement (Bite)
13
Control Device
13
Lubrication
13
Dielectric Tests
13
Electrical Characteristics of Control Devices
15
DC and Ac Closing Operating Sequence
15
Ac Closing Operating Sequence
15
Ground and Test Devices
17
Renewal Parts
17
Appendix
18
Igure A1
18
Ifting Yoke Installed
18
Circuit
18
Breaker Assembly with L Breaker Rear - Model 21
19
Odel 21
20
Odel 30
21
Operated Circuit Breakers
22
Circuit Breaker Panel - M Circuit Breaker Panel - M Charging of Electrically Acking Mechanism & Interlocks
23
Ontrol Device Adjustment
28
Circuit
30
Range
31
Alues
31
Ontrol Circuit Operating Voltage Ontrol Circuit Typical Current Vperating Parameters
32
Advertisement
Advertisement
Related Products
ABB VHK-R
ABB VHK 20
ABB VHKR 80
ABB VD4 36
ABB VD4/R
ABB VM1 17
ABB VD4 12.12.32 p150
ABB VD4 12.12.16 p210
ABB VD4 24.12.16 p275
ABB VD4/P 17.20.20 p210
ABB Categories
Industrial Equipment
Controller
Measuring Instruments
Battery Charger
DC Drives
More ABB Manuals
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL