Differenz signal generator
Delta RD1A - Residual current device 2 Module
- Istantaneous:(t = 0) at IDeltan 30mA
- Selectable set point 30mA…30A (19 ranges)
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Manual or automatic reset (3 restart attempts)
Delta RD3A - Residual curent device
- Selectable set point 30mA ... 30A (19 ranges)
- lstantaneous display as percentage of /Li n
- 2-wire connections relay ring current transformet
- Filter for harmonics
- Field-se/ectable negative or positive security (fail safe)
- Automatie permanent test
- Manual or automatic reset (3 restart attempts)
Delta RD2B - Residual current device 4 Module
- Use in unattented environments (public lighting, traffic lights plants)
- Automatic reset (max.3 attempts)
- in the event of transient ground fault
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Filter for harmonics, field-selectable
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
Delta RD4B2 - Residual current device
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Alarm + pre-alarm or alarm function with 2 SPDT contact
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Automatic restart (up to 10 attempts) in case of transient earth fault
- “No trip” TEST (local, without output relay tripping)
- Sealable front frame
Delta 48-S RD1DF - Residual current device 48x 48mm
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Manual or automatic reset (3 restart attempts)
Delta 48-S (RD1D2) - Residual current device
- Istantaneous (t = 0) at I Δ n 30mA
- Selectable set point 30mA…30A (19 ranges)
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Manual or automatic reset (3 restart attempts)
Delta 72-S (RD1EP) - Residual current device (72x72mm)
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Pre-alarm threshold
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Manual or automatic reset (3 restart attempts)
Delta 72-S (RD1EP) - Residual current device (72x72mm)
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Pre-alarm threshold
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Manual or automatic reset (3 restart attempts)
RD1G - Residual current device 96x96mm
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Alarm relay + pre-alarm or alarm relay with double exchange
DEL (TDS) - Transformers
Summing ring current transformer for differential protection with measuring CT transformer
