ABB SV-1 Instruction Leaflet - Page 9
Browse online or download pdf Instruction Leaflet for Relays ABB SV-1. ABB SV-1 20 pages. Instantaneous current and instantaneous voltage relays
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SC, SC-1, SV and SV-1 Relay
Contacts - Either
Make or Break
As Required
Left-hand Unit
(Front View)
ARRANGEMENT OF UNITS
LOCATION OF EACH UNIT
TYPE OF UNIT
RIGHT HAND
LOWER RATING
SAME TYPE
(SV, SV1)
UNIT
SAME TYPE
DC
BUT DC & AC
Figure 5:
Internal Wiring of the Relays in the Small
Glass Case
CONTACTS - EITHER
MAKE OR BREAK AS
REQUIRED
BOTTOM UNIT
Figure 7:
Internal Schematic of the Double Unit Type SC
or SC-1 Relay in the Type FT-21 Case
*
Denotes Change
Right-hand Unit
(Front View)
Red Handle
Test Switch
Terminal
LEFT HAND
HIGHER RATING
UNIT
AC
Sub 1
182A857
TOP LEFT-HAND UNIT
(FRONT VIEW)
TOP RIGHT-HAND UNIT
(FRONT VIEW)
TEST SWITCH
Sub 2
TERMINAL
183A192
Contacts - Either
Make or Break
As Required
Bottom Unit
Top RH Unit
(Front View)
Note: Coils tapped for
1 to 25 Ratio Range
(when used)
Note: When SC or SC-1 Coil
Ratings are Different - The
Lower Rated Current Element
To Be Assembled in Bottom
Position of Relay.
Figure 6:
Internal Schematic of the Single Unit Type SC
or SC-1 Relay in the Type FT-21 Case
Figure 8:
Internal Wiring of the Relays in the Small
Glass Case
I.L. 41-766.1N
Top LH Unit
(Front View)
Chassis Operated
Shorting Switch
Test Switch
Current Test Jack
Terminal
Sub 5
183A193
* Sub 7
871766
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