Manual 37138C
ESDR 4T - Current Differential Protection Relay
© Woodward
Page 33/46
Chapter 7.
Commissioning
DANGER - HIGH VOLTAGE
When commissioning the control, please observe all safety rules that apply to the handling of live
equipment. Ensure that you know how to provide first aid in the event of an uncontrolled release of en-
ergy and that you know where the first aid kit and the nearest telephone are. Never touch any live com-
ponents of the system or on the back of the system.
L I F E T H R E A T E N I N G
CAUTION
Only a qualified technician may commission unit. The "EMERGENCY-STOP" function must be opera-
tional prior to commissioning of the system, and must not depend on the unit for its operation.
CAUTION
Prior to commissioning ensure that all measuring devices are connected in correct phase sequence.
The connect command for the unit circuit breaker must be disconnected at the unit circuit breaker. The
field rotation must be monitored for proper rotation. Any absence of or incorrect connection of voltage
measuring devices or other signals may lead to malfunctions and damage the unit, the engine, and/or
components connected to the unit!
Prerequisite
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Connect the unit according to the wiring diagram on Page 9.
Pre-Adjustments
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In order to put the unit into operation, you must
1. Connect the auxiliary 24Vdc power supply (Terminals 13/14)
2. Activate the configuration mode (Press "Digit
↑
" and "Cursor
→
")
3. Set all parameters according to the Chapter "Configuration"
4. Activate the Display mode (Press "Digit
↑
" and "Cursor
→
")
Testing with Secondary Values
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The threshold value can be tested using three-phase test equipment. Single-phase test systems can generate
measured values which do not match the current supplied as a result of eliminating the phase-matching system.
The control unit will behave in a similar manner to applications where matching transformers are used.
