FSM AG
| Erich-Rieder-Straße 2 | D-79199 Kirchzarten | [email protected] | www.fsm.ag
13.09.2018
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Operating instructions
Transformator switching relay | Type TSRD
With TSRD the both three-phase transformers and combinations of three individual single-phase transformers can be swit-
ched-on in a three-phase network without inrush currents arising. The required application is selected using DIP-switches.
Note in safety
Potential separation does not occur during switching of the TSRD as additional RC elements are connected between the
input and the output thyristor clips. To bypass the thyristors, a bypass contactor must be connected in parallel to the TSRD.
General
The required application is selected using DIP-switches. In the case of applications N and L the transformer core type must
be selected at TP1 (transformer type) The TSRD has a Message Display Output (Message 1). Depending on the DIP-switch
selections four different conditions can be displayed. The DIP-switches should be set only when the power is off.
Applications
Application D
Application S
Application N
Application L
Three-phase transformer, prima-
ry side delta or star config.
without N (neutral) (arbitrarily
loading). Winding direction
important for transformer
connection.
Three-phase transformer, prima-
ry side star config. with N
(neutral) (arbitrarily loading).
Winding direction important for
transformer connection.
3 single-phase transformers ha-
ving the same core (arbitrarily
loading). The core type is set at
TP1.
3 single-phase transformers
having the same core (arbitrarily
loading). The core type is set
at TP1.
DIP-Switches
No.
Function
Position
1
Error handling
OFF
No automatic restart
ON
Automatic restart after an error
2
Rotation direction recognition
OFF
Switched-on for clockwise phase-sequence
ON
Switched-on for clockwise and anticlockwise phase-sequence
3
Control input 1
(Remote-on input)
OFF
Control input enabled for external control signal
ON
Switched-on without external control signal
4
Control input 2
OFF
Control input enabled for additional external control signal
ON
Switched-on without external control signal
5/6
Message display 1
5
6
Function Message Display 1:
OFF
OFF
Fully-on message
ON
OFF
OK message
OFF
ON
Error message
ON
ON
Bypass contactor control
Note: Installation and commissioning
have to be undertaken by a qualified
person or a person under the supervisi-
on of a specialist.
