Unipower HPL110A Power Monitor
The Unipower HPL110A Power Monitor is an advanced digital power monitor designed for protection and control of motor driven mechanical systems. The Unipower HPL110A Power Monitor is a member of the Unipower family of “Intelligent PowerControl Units”. The HPL110A measures true power consumption of 3-phase AC motors (single phase versions also available) and displays consumption as a percentage of selected power range. Power consumption (kW) is calculated from the formula: P = ÷3 x U x I x cos j
The display shows power in units of %kW which represent the percentage of full load power range for the unit.
Control functions comprise two independent and programmable trip functions:
Low Power Alarm – for example, to stop a pump in the event of dry-running, and
High Power Alarm – for example, to stop a feeder when blocked.
The alarm functions activate a single alarm relay which may be used to control the motor being monitored; i.e. to trip a shut-down in the event of either a high or low power alarm. The HPL110A may be configured to monitor any size motor either with the internal current transformer for applications up to 8A or with an external CT for applications above 8A. The HPL110A provides consistent sensitivity across the complete motor load range making it ideal for low trip applications where amp meters are ineffective. In addition, the HPL110A measurement principle allows it to be used on non-sine shaped loads such as Variable Frequency Drives. The digital design of the HPL110A including 3-key programming, 3 digit display, Max/Min Peak Hold, Program Lock and Power Down Alarm Block functions make it very easy to use.
Panel Mount variant of HPL110 load monitor
- Two programmable power limits [kW%] for
- Overload and Underload monitoring
- Single SPDT relay for alarm indication
- Start/nuisance trip delay timers
- Optional Hysteresis function for control applications
- Panel mount enclosure
- Remote reset, alarm blocking & peak detect
- Power down alarm inhibit
- Program locking
- High Trip Alarm
- Low Trip Alarm
- Digital Display
- Start and Trip
- Delay Timers
- Crushers and mixers
- Broken belt detection