Math & Numbers
Capacitor Reactive Power Calculator (Q_c = 2πfCU²)
Compute the reactive power produced by a known capacitor: Q_c = 2π·f·C·U². Supports single-phase, three-phase star (Y) and delta (Δ) connections. Returns Q_c in var/kvar, capacitive reactance Xc, and capacitor current Ic. Complementary to the power-factor-correction tool (which sizes a capacitor for a target cosφ).
json· JSON resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/capacitor-reactive-power' \
-H 'Content-Type: application/json' \
-d '{"connection":"single","capacitance":10,"capacitanceUnit":"µF","frequency":50,"voltage":230,"decimalPlaces":4}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/capacitor-reactive-powerParameters
| Name | Type | Required | Description |
|---|---|---|---|
| connection | select | No | — |
| capacitance | number | Yes | Capacitance value in the selected unit. For three-phase, enter the per-phase capacitance. |
| capacitanceUnit | select | No | — |
| frequency | number | Yes | — |
| voltage | number | Yes | For single-phase: phase voltage. For three-phase star/delta: line-to-line voltage. |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-capacitor-reactive-power": {
"name": "capacitor-reactive-power",
"description": "Compute the reactive power produced by a known capacitor: Q_c = 2π·f·C·U². Supports single-phase, three-phase star (Y) and delta (Δ) connections. Returns Q_c in var/kvar, capacitive reactance Xc, and capacitor current Ic. Complementary to the power-factor-correction tool (which sizes a capacitor for a target cosφ).",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=capacitor-reactive-power",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "capacitor-reactive-power",
"arguments": {
"connection": "single",
"capacitance": 10,
"capacitanceUnit": "µF",
"frequency": 50,
"voltage": 230,
"decimalPlaces": 4
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).