{"product_id":"interface-protection-400-220","title":"interface protection 400 220","description":"\u003ch3 data-start=\"769\" data-end=\"792\"\u003e\u003cstrong data-start=\"773\" data-end=\"792\"\u003e1. Introduction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"793\" data-end=\"1062\"\u003eA protection relay for 220\/400 V networks protects electrical circuits from faults such as over‑voltage, under‑voltage, over‑current and frequency deviations. It continuously monitors transitions and provides alarm\/control outputs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"1069\" data-end=\"1099\"\u003e\u003cstrong data-start=\"1073\" data-end=\"1099\"\u003e2. Safety Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1100\" data-end=\"1327\"\u003e✔ Only qualified personnel may install and configure the device.\u003cbr data-start=\"1164\" data-end=\"1167\"\u003e✔ Disconnect power before installation.\u003cbr data-start=\"1206\" data-end=\"1209\"\u003e✔ Ensure correct voltage rating matches your network (400\/220 V).\u003cbr data-start=\"1274\" data-end=\"1277\"\u003e✔ Avoid exposure to moisture, dust and vibrations.\u003c\/p\u003e\n\u003ch3 data-start=\"1334\" data-end=\"1357\"\u003e\u003cstrong data-start=\"1338\" data-end=\"1357\"\u003e3. Installation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"1358\" data-end=\"1808\"\u003e\n\u003cli data-start=\"1358\" data-end=\"1418\"\u003e\n\u003cp data-start=\"1361\" data-end=\"1418\"\u003eMount the unit securely in a control panel or DIN rail.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1419\" data-end=\"1503\"\u003e\n\u003cp data-start=\"1422\" data-end=\"1503\"\u003eConnect the \u003cstrong data-start=\"1434\" data-end=\"1460\"\u003epower supply terminals\u003c\/strong\u003e according to polarity and rated voltage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1578\"\u003e\n\u003cp data-start=\"1507\" data-end=\"1578\"\u003eConnect \u003cstrong data-start=\"1515\" data-end=\"1553\"\u003einput supply lines (L1, L2, L3, N)\u003c\/strong\u003e — for 3‑phase systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1579\" data-end=\"1625\"\u003e\n\u003cp data-start=\"1582\" data-end=\"1625\"\u003eConnect \u003cstrong data-start=\"1590\" data-end=\"1622\"\u003eprotective earth (PE) ground\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1626\" data-end=\"1699\"\u003e\n\u003cp data-start=\"1629\" data-end=\"1699\"\u003eWire the \u003cstrong data-start=\"1638\" data-end=\"1673\"\u003eoutput contacts (relay \/ alarm)\u003c\/strong\u003e to your control system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1700\" data-end=\"1808\"\u003e\n\u003cp data-start=\"1703\" data-end=\"1808\"\u003eIf provided, connect \u003cstrong data-start=\"1724\" data-end=\"1769\"\u003ecommunication interfaces (RS485\/Ethernet)\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-start=\"1815\" data-end=\"1846\"\u003e\u003cstrong data-start=\"1819\" data-end=\"1846\"\u003e4. Front Panel Controls\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1847\" data-end=\"2163\"\u003eCommon relay front panels include:\u003cbr data-start=\"1881\" data-end=\"1884\"\u003e🟢 \u003cstrong data-start=\"1887\" data-end=\"1902\"\u003eStatus LEDs\u003c\/strong\u003e — Indicate power, alarm, communication and fault states.\u003cbr data-start=\"1959\" data-end=\"1962\"\u003e🔘 \u003cstrong data-start=\"1965\" data-end=\"1986\"\u003eButtons \/ Display\u003c\/strong\u003e — Navigate settings, read measured values and fault logs.\u003cbr data-start=\"2044\" data-end=\"2047\"\u003e📟 \u003cstrong data-start=\"2050\" data-end=\"2065\"\u003eLCD Display\u003c\/strong\u003e — Shows real‑time voltage, frequency and protection status. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"2170\" data-end=\"2196\"\u003e\u003cstrong data-start=\"2174\" data-end=\"2196\"\u003e5. Operating Modes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2197\" data-end=\"2235\"\u003eProtection relays typically support:\u003c\/p\u003e\n\u003cp data-start=\"2237\" data-end=\"2306\"\u003e\u003cstrong data-start=\"2237\" data-end=\"2259\"\u003eVoltage Protection\u003c\/strong\u003e\u003cbr data-start=\"2259\" data-end=\"2262\"\u003e✔ Over‑voltage trip\u003cbr data-start=\"2281\" data-end=\"2284\"\u003e✔ Under‑voltage trip\u003c\/p\u003e\n\u003cp data-start=\"2308\" data-end=\"2381\"\u003e\u003cstrong data-start=\"2308\" data-end=\"2332\"\u003eFrequency Protection\u003c\/strong\u003e\u003cbr data-start=\"2332\" data-end=\"2335\"\u003e✔ High frequency trip\u003cbr data-start=\"2356\" data-end=\"2359\"\u003e✔ Low frequency trip\u003c\/p\u003e\n\u003cp data-start=\"2383\" data-end=\"2459\"\u003e\u003cstrong data-start=\"2383\" data-end=\"2398\"\u003eTime Delays\u003c\/strong\u003e\u003cbr data-start=\"2398\" data-end=\"2401\"\u003e✔ Adjustable delay before trip to prevent nuisance faults.\u003c\/p\u003e\n\u003ch3 data-start=\"2466\" data-end=\"2490\"\u003e\u003cstrong data-start=\"2470\" data-end=\"2490\"\u003e6. Configuration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"2491\" data-end=\"2758\"\u003e\n\u003cli data-start=\"2491\" data-end=\"2556\"\u003e\n\u003cp data-start=\"2494\" data-end=\"2556\"\u003eAccess the menu via panel keys or a connected software tool.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2557\" data-end=\"2600\"\u003e\n\u003cp data-start=\"2560\" data-end=\"2600\"\u003eSet nominal voltage (e.g., 220\/400 V).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2601\" data-end=\"2672\"\u003e\n\u003cp data-start=\"2604\" data-end=\"2672\"\u003eAdjust trip thresholds (e.g., upper\/lower limits and time delays).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2673\" data-end=\"2758\"\u003e\n\u003cp data-start=\"2676\" data-end=\"2758\"\u003eSave settings and return to monitoring mode. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-start=\"2765\" data-end=\"2795\"\u003e\u003cstrong data-start=\"2769\" data-end=\"2795\"\u003e7. Communication Setup\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2796\" data-end=\"2834\"\u003eIf the device has RS485 or Ethernet:\u003c\/p\u003e\n\u003cul data-start=\"2835\" data-end=\"2988\"\u003e\n\u003cli data-start=\"2835\" data-end=\"2897\"\u003e\n\u003cp data-start=\"2837\" data-end=\"2897\"\u003eSet the communication address and protocol (e.g., Modbus).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2898\" data-end=\"2988\"\u003e\n\u003cp data-start=\"2900\" data-end=\"2988\"\u003eIntegrate with SCADA or BMS for remote monitoring. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2995\" data-end=\"3022\"\u003e\u003cstrong data-start=\"2999\" data-end=\"3022\"\u003e8. Normal Operation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3023\" data-end=\"3277\"\u003eWhen powered ON:\u003cbr data-start=\"3039\" data-end=\"3042\"\u003e✔ The relay continuously measures voltage and frequency.\u003cbr data-start=\"3098\" data-end=\"3101\"\u003e✔ LEDs show system state (normal \/ fault).\u003cbr data-start=\"3143\" data-end=\"3146\"\u003e✔ If a threshold is exceeded, the relay triggers and opens its contact to protect the system. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"3284\" data-end=\"3318\"\u003e\u003cstrong data-start=\"3288\" data-end=\"3318\"\u003e9. Alarm \u0026amp; Trip Conditions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3319\" data-end=\"3604\"\u003eTypical trip conditions:\u003cbr data-start=\"3343\" data-end=\"3346\"\u003e⚠ \u003cstrong data-start=\"3348\" data-end=\"3364\"\u003eOver‑voltage\u003c\/strong\u003e — load or line voltage too high\u003cbr data-start=\"3396\" data-end=\"3399\"\u003e⚠ \u003cstrong data-start=\"3401\" data-end=\"3418\"\u003eUnder‑voltage\u003c\/strong\u003e — voltage drop below safe limit\u003cbr data-start=\"3450\" data-end=\"3453\"\u003e⚠ \u003cstrong data-start=\"3455\" data-end=\"3478\"\u003eFrequency deviation\u003c\/strong\u003e — generator or grid instability\u003cbr data-start=\"3510\" data-end=\"3513\"\u003eAfter a trip, the display often shows the fault code. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"3611\" data-end=\"3634\"\u003e\u003cstrong data-start=\"3615\" data-end=\"3634\"\u003e10. Maintenance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3635\" data-end=\"3835\"\u003e✔ Periodically inspect terminals for corrosion and tightness.\u003cbr data-start=\"3696\" data-end=\"3699\"\u003e✔ Update firmware if supported.\u003cbr data-start=\"3730\" data-end=\"3733\"\u003e✔ Test the protection thresholds regularly for correct behavior. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Green Energy","offers":[{"title":"Default Title","offer_id":50120437989709,"sku":"","price":550.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0802\/3274\/3245\/files\/Screenshot-2024-08-30-15-34-43-63_260528048de7f2f358f0056f785be619.jpg?v=1725021465","url":"https:\/\/greenenergy-repair.com\/es\/products\/interface-protection-400-220","provider":"Green Energy","version":"1.0","type":"link"}