Controlled Switching — Buyer´s Guide
O-1
Edition 2, 2006-09
Enquiry Data Technical Information
Inquiry Data for Switchsync™ Controller
The following minimum information is required. Please send a filled-in copy
along with your inquiry.
For the circuit breaker(s) used together with the Switchsync™, please fill in
”Inquiry Data for Live Tank Circuit Breakers” found in Buyer’s Guide, Live Tank
Circuit Breakers.
PROJECT DATA
Customer / End customer
Name of project
Number of controlled circuit breakers
Delivery time
SYSTEM PARAMETERS ETC.
Rated voltage (kV)
Rated frequency (Hz)
Substation configuration
(E.g. double busbar, circuit breaker and a half etc)
Available control voltage (V)
Available ref. voltage from voltage transformer (V)
Available voltage start signal (V) or current start
signal (A). (For adaptive purposes)
VT or CT ratio
Ambient temperature (max. - min.) (˚C)
For further circuit breaker data, see Buyers Guide for Live Tank Circuit Breakers , Inquiry Data etc. ...
A1
C1
B1
L
p
L
p
L
p
L
0
Reactor
Grounded
Reactor
Designation of inductances in case of reactor grounded reactor
L
0
in relation to L
p
must be known if a three-pole
operated circuit breaker is chosen. This is to ensure
delivery of the correct type of circuit breaker.
Acceptable combinations of power transformer winding types and VT
types for T183
Y-0: Y-connected grounded neutral
Y-N: Y-connected isolated neutral
D: Delta coupled
V: V-coupled (measurement of two voltages)
1-ph: Single phase to ground
VT-
type
Power transformer
winding type
Y-0 Connected to Y-0/without tertiary
winding
Y-0,
Y-N,
D or V
Connected to
Y-0/D or Y1-N/D
Z1-0/D or Z1-N/D
Z11-0/D or Z11-N/D
D1 or D11
1-ph
Connected to 1-ph
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