Math & Numbers
Motor Efficiency Calculator (η = P_out / P_in)
Compute motor efficiency η = P_out / P_in. Supports electrical input (single-phase U·I·cosφ or three-phase √3·U·I·cosφ) or direct P_in; output power can be derived from a loss breakdown (copper+iron+rotor copper+mechanical+stray) or supplied directly.
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/motor-efficiency-calculator' \
-H 'Content-Type: application/json' \
-d '{"powerInputMode":"electrical","phase":"three","voltage":400,"current":15,"powerFactor":0.85,"pin":0,"useLosses":false,"pout":8000,"copperLoss":0,"ironLoss":0,"rotorCopperLoss":0,"mechanicalLoss":0,"strayLoss":0,"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/motor-efficiency-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| powerInputMode | select | No | — |
| phase | select | No | Only used in Electrical mode. |
| voltage | number | No | Required in Electrical mode. Line-to-line voltage for three-phase. |
| current | number | No | Required in Electrical mode. Line current. |
| powerFactor | number | No | Required in Electrical mode. 0 < cosφ ≤ 1. |
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-motor-efficiency-calculator": {
"name": "motor-efficiency-calculator",
"description": "Compute motor efficiency η = P_out / P_in. Supports electrical input (single-phase U·I·cosφ or three-phase √3·U·I·cosφ) or direct P_in; output power can be derived from a loss breakdown (copper+iron+rotor copper+mechanical+stray) or supplied directly.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=motor-efficiency-calculator",
"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": "motor-efficiency-calculator",
"arguments": {
"powerInputMode": "electrical",
"phase": "three",
"voltage": 400,
"current": 15,
"powerFactor": 0.85,
"pin": 0,
"useLosses": false,
"pout": 8000,
"copperLoss": 0,
"ironLoss": 0,
"rotorCopperLoss": 0,
"mechanicalLoss": 0,
"strayLoss": 0,
"decimalPlaces": 4
}
}
}