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ABB CV Series User Manual
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CV Voltage Rela
y Class 1E
41-201.4H
23
Sub 2
1478B24
Figure 21
: Diagr
am of
T
est Connecti
ons f
or T
ype CV Ov
er or U
ndervoltage
Rela
y
22
24
Table of Contents
Figure 1: Type CV Relay Without FT11 Case
2
Figure 2: 199 Volt Type CV-8 Relay With Adjustable Pickup Without FT11 Case
2
Figure 3: 67 Volt Type CV-8 Relay with Adjustable Pickup without FT-21 Case
2
Figure 4: Internal Schematic of Type CV Undervoltage or Overvoltage Relay in FT11 Case
9
Figure 5: Internal Schematic of Type CV Over or Undervoltage Relay, Without ICS Unit, in FT11 Case
10
Figure 6: Internal Schematic of Type CV Over or Undervoltage Relay, With ICS in Overvoltage Circu...
10
Figure 7: Internal Schematic of Type CV Over or Undervoltage Relay, With ICS in Undervoltage Circ...
11
Figure 8: Internal Schematic of Type CV Over or Undervoltage Relay, Without ICS, With O.I. Unit i...
11
Figure 9: Internal Schematic of Type CV-8 Low Voltage Fixed Pickup in FT11 Case
12
Figure 10: Internal Schematic of Type CV-8 Low Voltage Adjustable Pickup in FT21 Case
12
Figure 11: Typical Time Curves for Type CV-8 Low Pickup Overvoltage Relay
13
Figure 12: Typical Time Curves Type CV-8 Over Voltage Relay with Resistor Set for Maximum Pickup ...
14
Figure 13: Typical Sensitivity vs. Frequency Curve for Type CV-8 Low Pickup Overvoltage Relay
15
Figure 14: Typical Time Curves for Type CV-1 Long Time Undervoltage Relay
16
Figure 15: Typical Time Curves for Type CV-2 Short Time Undervoltage Relay
17
Figure 16: Typical Time Curves for Type CV-4 Long time Overvoltage Relay
18
Figure 17: Typical Time Curves for Type CV-5 Short Time Overvoltage Relay
19
Figure 18: Typical Time Curves for Type CV-6 Long Time Over or Undervoltage Relay
20
Figure 19: Typical Time Curves for Type CV-7 Short Time Over or Undervoltage Relay
21
Figure 20: Diagram of Test Connections for Type CV Undervoltage or Overvoltage Relay
22
Figure 21: Diagram of Test Connections for Type CV Over or Undervoltage Relay
23
Figure 22a: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays
24
Figure 23: Typical External Schematic for Type CV-8 Voltage Relay
25
Figure 24: Outline and Drilling Plan for the Type CV Relay in the FT-11 Case
27
Figure 25: Outline and Drilling Plan for the Type CV-8 Relay in the FT21 Case
28
1.0 APPLICATIONS
1
2.0 CONSTRUCTION and OPERATION
1
2.1. Voltage Unit (CV)
2
2.2. INDICATING CONTACTOR SWITCH UNIT (ICS)
2
3.0 CHARACTERISTICS
3
3.1. CV-1 and CV-2 Undervoltage Relays CV-4 and CV-5 Overvoltage Relays
3
3.2. CV-6 and CV-7 Over or Undervoltage Relays
3
3.3. Energy Requirements
4
4.0 SETTINGS
4
4.1. CV Unit
4
4.2. CV-8 Settings
4
4.3. Instantaneous Reclosing
4
4.4. Indicating Contactor Switch (ICS)
5
5.0 INSTALLATION
5
6.0 ADJUSTMENTS
5
6.1. Performance Check
5
7.0 MAINTENANCE
6
7.1. Calibration
6
8.0 RENEWAL PARTS
8
Figure 22b: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays
24
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ABB CV Series Specifications
General
Output
SPDT, DPDT
Terminal Type
Screw Terminals
Mounting
DIN Rail
Electrical Life
100, 000 operations
Mechanical Life
10, 000, 000 operations
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