KPW18x - AC ACTIVE POWER OVERLOAD GUARD
- Precision Overload Protection, not affected by heavily distorted waveforms
- Total processing time less than 50mS
- 3 or 4-wire systems. Definite time trip delays
- Triple relay operation gives more flexibility
- Optional fast analogue kW-signal output, <50mS
- Wide range setting of high overload contact hysteresis
Application
The digitally controlled KPW18x range provides precision (1.0%) overload protection and monitoring of three phase generators or motors.
Available for 3-phase 3-wire (2W3) and 4-wire (3W4) systems.
The unit measures the voltage and current true r.m.s. value, and accuracy is independent of any wave form distortion.
As standard the auxiliary voltage is taken from the unit monitored
voltage input. A separate AC or DC auxiliary voltage is optionally
available
A green LED indicates POWER on. Start of monitoring function is delayed when power is switched on (default 2 secs delay). In this way false tripping during power up is avoided.
The DIN96 instrument reads the power level directly in kW. The
wattmeter and the triple-zone status LEDs at a glance gives the clear
safety message:
Outputs
If output is used for remote meter reading, we recommend 0-1mA for the slave indicator.
The unit meets EN 61010-1 Cat. III, Pollution degree 2 and the relevant environmental and EMC tests specified in EN 61326-2-4 to comply with the requirements of the major Classification Societies.
Description
KPW181E - KPW181F
Configuration: 3-Phase, 3-Wire (2W3)
Both relays can be used for non-essential load release or as a start/stop signal to a standby generator etc.
A wide range overload contact hysteresis can be set to enable R2 to be used for a non-essential load to be reconnected or as a standby generator stop signal. Relay R3 is an additional relay that can be used for local indication, as an input to an alarm system etc.
A trip LED flashes when the trip level is passed, the relay trips when the delay has elapsed. The timer resets if the fault is removed during countdown. The High/Low relays can be used to regulate power in AC systems.
KPW181F have analogue output proportional to the generator kW-load.
KPW184E - KPW184F
Configuration: 3-Phase, 4-Wire (3W4)
Both relays can be used for non-essential load release or as a start/stop signal to a standby generator etc.
A wide range overload contact hysteresis can be set to enable R2
to be used for a non-essential load to be reconnected or as a standby
generator stop signal. Relay R3 is an additional relay that can be used
for local indication, as an input to an alarm system etc.
A trip
LED flashes when the trip level is passed, the relay trips when the
delay has elapsed. The timer resets if the fault is removed during
countdown. The High/Low relays can be used to regulate power in AC
systems.
KPW184F have analogue output proportional to the generator kW-load.
