> ## Documentation Index > Fetch the complete documentation index at: https://docs.industrialpmr.com/llms.txt > Use this file to discover all available pages before exploring further. # Machine Power Page > Per-machine 3-phase power analysis: live gauges, trends, accumulators, alert thresholds with templates, and alert history. Each machine has a dedicated **Power** page at `/machines/:machineID/power`. It gives engineers a full electrical picture of a single machine, separate from the plant-wide [Main Electricity](https://docs.industrialpmr.com/dashboard/electricity-monitoring.md) view. The page has four tabs. | Tab | Purpose | | :- | :- | | **Real-Time Monitoring** | Live gauges and metric cards for the three phases and the total. | | **Trend Analysis** | Hourly trend charts for voltage, current, power, and power factor. | | **Data Grid** | All metrics in one table with min, max, and average per phase. | | **Alert History** | Incidents raised by the per-machine alert thresholds. | A status line at the top shows the connection state: **Connecting to device…**, **Restoring connection…**, **Device connected**, or **Device offline**. > [!NOTE] > > Live streaming is started through a REST subscription that is renewed every **15 seconds** while the page is open. *** ## Real-Time Monitoring ![IndustrialPMR Real-Time Monitoring](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/Realtime-monitoring.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=165b1105d7c3ba1a67ff77e834854e41) Phases R, S, and T are shown as **L1, L2, and L3**, plus the total (**SUM**). For each, the page shows: * Voltage and current * Active, apparent, and reactive power * Power factor and frequency * **Voltage THD** and **current THD** bars * A **power-factor gauge** * A **live frequency chart** ### THD Color Bands ![IndustrialPMR THD Color Bands](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/THD.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=33224d0c80839b49c0ad80f31178ada3) | Measure | Green | Orange | Red | | :- | :- | :- | :- | | **Voltage THD** | under 5% | 5% to 8% | over 8% | | **Current THD** | under 15% | 15% to 30% | over 30% | ## Trend Analysis ![IndustrialPMR Trend Analysis](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/Trend-analysis.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=5e75dd348fd987cdaa9ddd518e8f8d3e) Hourly trend charts for **voltage**, **current**, **power**, and **power factor**. ## Data Grid ![IndustrialPMR Data Grid](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/data-grid.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=86decec4da121642ee408f592ef0a24b) All metrics in a single table, with **min**, **max**, and **average** per phase and color-coded values. *** ## Accumulators ![IndustrialPMR Accumulators](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/Accumulators.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=4a5b8deacf3d8e392fef51e16cc6c676) Accumulators are the energy counters kept for each machine: * **Active energy**: import, export, total * **Reactive energy**: inductive, capacitive, total * **Apparent energy** | Control | Description | | :- | :- | | **Reset schedule** | Set how often the counters reset (every *N* days, minimum 1) and the date of the last reset. | | **Manual reset** | Zeroes all counters immediately and flags the request for the device. | *** ## Per-Machine Alert Thresholds ![IndustrialPMR Per-Machine Alert Thresholds](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/alert-threshold.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=025a8550a824834c1718ca0144ad80e5) ![IndustrialPMR Per-Machine Alert Thresholds](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/alert-current.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=5c82e147aeaa844b14431c16003a0606) ![IndustrialPMR Per-Machine Alert Thresholds](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/alert-pf.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=2d7f6b360b46401e0c71bef3e095983b) Alerts can be configured for: * Voltage L-N and Voltage L-L * Current L1, L2, and L3 * Power Factor * Voltage THD and Current THD Each parameter has an **enabled** switch, an optional **minimum** and **maximum**, a **severity** (warning or critical), and a **hysteresis** percentage. ### Templates Choose a template, then adjust any value: | Template | Voltage L-N | Voltage L-L | PF minimum | Voltage THD max | Current THD max | | :- | :- | :- | :- | :- | :- | | **Conservative** | 220-240 V | 380-420 V | 0.90 | 3% | 10% | | **Standard (IEEE/IEC)** | 207-253 V | 360-440 V | 0.85 | 5% | 15% | | **Relaxed** | 195-265 V | 340-460 V | 0.80 | 8% | 30% | | **Custom** | any values | | | | | * Voltage and power-factor limits are **critical** severity. * THD limits are **warning** severity. * Current limits have **no default** and are set per machine capacity. ### Hysteresis Hysteresis prevents alerts from flickering on and off. After a limit is breached, the value must recover past the limit by the hysteresis percentage before the alert clears. | Parameter | Default hysteresis | | :- | :- | | Voltage | 2% | | Power factor | 2% | | Current | 3% | | THD | 5% | *** ## Alert History ![IndustrialPMR Alert History](https://mintcdn.com/kunji-soft-technologies/Z3lxTECHchNjgmBJ/images/alert-analytics.png?fit=max\&auto=format\&n=Z3lxTECHchNjgmBJ\&q=85\&s=f0ad8362a5ff95908bf1088b9df02692) The **Alert History** tab lists incidents with: * Parameter and phase * Limit, actual value, and peak value * Severity * Start, end, and duration Filter by **All**, **Active**, or **Resolved**. Summary charts show the status split, severity mix, and recent incident trend. > [!TIP] > > Currently active alerts also appear in a panel above the tabs, so they stay visible whichever tab you are on. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.