PF Guard
Identify and control reactive-energy and power-factor-related losses.
PF Guard is the WattZap Guard module for reactive-energy and power-factor risk — from diagnosis and root-cause analysis to corrective hardware where required, with ongoing monitoring and bill-impact verification.
Share this product:
PF Guard electrical-room scene
Drag to rotate · tap componentsTap components for details
Motors draw reactive power — PF falls below target, an orange warning appears and bill risk rises.
Where this fits in the journey
DiagnoseProtectOptimiseGenerateFinanceVerify
Problems addressed
- Poor power factor
- Leading reactive energy
- Lagging reactive energy
- Fixed capacitors remaining connected
- Manual capacitor switching
- APFC controller malfunction
- Failed capacitor stages
- Stuck contactors
- Incorrect CT polarity
- Metering configuration problems
- Capacitor-bank instability
Possible hardware, depending on diagnosis
- Three-phase energy meter
- Current transformers
- Communications gateway
- APFC controller
- Staged capacitor bank
- Contactors
- Fuses
- Detuned reactors
- Alarm relay
- Capacitor-stage feedback
- No-load interlock
PF-correction hardware must be recommended only after onsite diagnosis. WattZap must not assume that every customer already has an APFC panel or that every site needs the same APFC configuration.
Software and analytics
- PF dashboard
- Leading kVArh analysis
- Lagging kVArh analysis
- Capacitor-stage monitoring
- Abnormal-event alerts
- Trend analysis
- Monthly PF report
- Bill-impact verification
Deliverables
- PF diagnosis report
- Root-cause assessment
- Corrective design
- Hardware implementation where required
- Alerts
- Monthly PF Guard statement
- Savings and risk verification
Commercial model
- Diagnostic and setup fee
- Hardware priced according to final scope
- Monthly monitoring subscription
- Annual technical inspection