Electrical Distribution Protection
Presentation
TS trip system are designed to provide protection against overcurrents and ground-fault currents.
The TS trip system are powered by the current flowing through the circuit breaker. The protection functions of TS trip system operate without an auxiliary power supply.
Description
When choosing protection characteristics, take into account:
-
Overcurrents (overloads and short-circuits) and potential ground-fault currents.
-
Conductors that need protection.
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Coordination and selectivity between the devices.
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The presence of harmonic currents.
Protection characteristics can be represented on a trip curve that shows the circuit breaker trip time as a function of the measured current and protection settings. Protection settings are indexed on the rated current In of the TS trip system.
TS 2.0 and 2.0S Trip System
TS 2.0 and 2.0S trip system provide:
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Long-time overcurrent protection (Ir)
-
Instantaneous overcurrent protection (Ii)
TS 5.0 and 5.0S Trip System
TS 5.0 and 5.0S trip system provide:
-
Long-time overcurrent protection (Ir)
-
Short-time overcurrent protection (Isd)
-
Instantaneous overcurrent protection (Ii)
TS 6.0S Trip System
TS 6.0S trip system provide:
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Long-time overcurrent protection (Ir)
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Short-time overcurrent protection (Isd)
-
Instantaneous overcurrent protection (Ii)
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Ground-fault protection (Ig)
Setting Change Traceability
Changing the protection settings by using any rotary switch on the front face of the TS trip system generates the following event.
|
Code |
Event |
History |
Severity |
Recommended actions |
|---|---|---|---|---|
|
0x1519 (5401) |
|
Protection |
Medium |
Adjust the rotary switch setting again. If it fails again, replace the trip system. |
DIN / DINF Instantaneous Protections
DIN / DINF instantaneous protections are internal protections used when the short-circuit current reaches the withstand limit of the circuit breaker. These protections are not adjustable and are unlikely to be triggered in normal operating conditions.
The following predefined event can be generated by the DIN / DINF instantaneous protections.
|
Code |
Event |
History |
Severity |
Recommended actions |
|---|---|---|---|---|
|
0x641D (25629) |
|
Trip |
High |
Check the load and reset the device. |
Predefined events cannot be modified by the user. For general information about events, refer to Event Management.
Resetting a Trip Event
For information about resetting the circuit breaker after a trip due to an electrical fault, refer to the relevant document:
- EasyPact MVS1 Circuit Breakers with TS Trip System - User Guide
- EasyPact MVS2 Circuit Breakers with TS Trip System - User Guide