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Introduction
4. MAIN FUNCTIONS
The following table shows the functions available for HF9024 relay.
Phase-to-neutral or phase-to-phase voltage protection
27
59
59N
47
27D
PROTECTION FUNCTIONS OVERVIEW
Configuration depending on the number
and type of voltage transformers
Phase under voltage (AND/OR logic)
Phase over voltage (AND/OR logic)
Zero sequence over voltage
Negative sequence over voltage
Positive sequence under voltage
Delta U / Delta T
Blocking logic
Balance voltage
Digital inputs
Output relays
Remote communication (RS485 port)
Local communication (RS232 port)
Event recording
Fault recording
Disturbance recording
Setting group
Circuit Breaker Control
Output relay latching
HF9024
HF9024
-
-
-
2
6
250
25
5
1
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