Datakom DPR-400, Руководство пользователя

Страница: 48 / 70

DPR-400 User Manual Rev_01 Firmware V-1.0
- 48 -
This feature is used to prevent unnecessary trips which may occur in cases where the load is powered up
suddenly after remaining unpowered for a long period of time. Only valid for
“OVERCURRENT
PROTECTION
(ANSI 50/51)”
and
“GROUND OVERCURRENT PROTECTION (ANSI 50N/51N)”
. The
protections are valid for the parameter group defined in this section for a set duration after the system has
been energized.
Parameter Definition Description Factory Setting
CLP I> SET Parameters for level 1 cold load pickup. Inactive
CLP I>> SET Parameters for level 2 cold load pickup. Inactive
CLP I>>> SET Parameters for level 3 cold load pickup. Inactive
CLP I>>>> SET Parameters for level 4 cold load pickup. Inactive
CLP IN1> SET Parameters for ground overcurrent cold load
pickup Inactive
CLP I Hot
CLP I Cold
Parameter Definition Unit Min Max Factory
Setting
Description
CLP I Hot In
In
0 0.5 0
If a current is measured which is
higher than the configured In value
upon energizing, TCLPTD condition
starts. If this parameter is set to 0,
TCLPTD conditions checks breaker
position.
CLP I Cold In
In
0 0.5 0
If a current is measured which is lower
than the configured In value upon
deenergizing, TCOLDTD condition
starts. If this parameter is set to 0,
TCOLDTD condition checks breaker
position.
TCOLDTD Sec 0 14400 7200
If the load is not energized for this
period, it is designated as cold load.
TCLPTD Sec 0 14400 7200
The cold load condition is removed
after this period is elapsed upon
energizing.
I>1 Status - 0 1 0 Active for level 1 protection
I>1 Current Setting In 0.08 4.00 1.50 Current threshold for level 1 protection
I>1 Delay Timer Sec 0.00 100.00 1.00
Constant time delay for level 1
protection.
I>1 TMS - 0.025 1.200 1.000
Time multiplier for level 1 protection
IEC curves
I>1 Time Dial Sec 0.5 15.0 7.0
Time multiplier for level 1 protection
IEEE curves
12.12. COLD LOAD PICKUP