español

Three-phase protector/measuring apparatus DOV 707KT 30mA

Presented in casing for Standard DIN 35mm rail (EN 50 022), it is a compact device controlled by a 16 Bit microcomputer, highly stable due to the inclusion of a double state of process watchdog. It withstands permanent and transitory peak surges, as well as low voltage. It can protect multiple, single-phase or three-phase lines, of up to 63A.
It provides diverse measurements and protections:

  • Differential protection with very high speed cut-off
  • Protection against peak surge via very high speed physical cut-off
  • Protection against low voltage
  • RMS value measurement of V, I ∆ n.

Moreover, constant surveillance of the power input enables an Intelligent Automatic Reset (conditioned). In other words, it resets only on re-establishing normality in the supply. Certain models / versions have Remote Control input and output.

 

Three-phase protector / measuring apparatus (4 poles) Tension + Diferencial I 30mA
Model DOV
Version 707KT
RMS Voltage Measurement V1 Line 1

0V ~ 500V

·
V2 Line 2
V3 Line 3
RMS Differential Intensity Measurement

0mA ~ 35mA

·
RMS Differential Intensity Measurement

0mA ~ 350mA

 
Protection due to Peak Surge
(Peak Delay programmable)
RMS
Peak
V1 Line 1

265V Delay 500m
385Vpk Delay 0.5, 0.8, and 1.2 mS (same PK delay for Vpk 123)

·
V1 Line 2
V1 Line 3
Protection by Low Voltage V1 Line 1

180V Delay 600mS

·
V1 Line 2
V1 Line 3

Protection due to Differential Intensity IDn 30 mA

RMS
Peak

30mA Delay 40m
42mApk Delay 2mS

·
Protection due to Differential Intensity IDn 300mA RMS
Peak

300mA Delay 40mS
420mApk Delay 2mS

 
Independent Programmable Resets due to I Differential 0 ~ 10 resets ·
Independent Programmable Resets due to Circuit breaker 0 ~ 3 resets ·
Real incremental protection test: IDn Diferential ·
Real incremental protection test: Peak voltage ·
Real incremental protection test: Low voltage ·
Independent cut-off counters of all the alarms
I Differential counter
·

Peak surge counter

·

Low voltage counter
Circuit breaker counter
Power failure counter
Locking counter
Totaliser counter
Accumulator counter

·
Security settings (Programming of all the parameters only with user key code) ·
Acoustic and luminous indicator ·

 

 

 

 


Download PDF
Download this manual
in PDF format.
(requires Acrobat Reader)