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| ÓÉÓÚ̽ÕëºÍ¸¨Öú½ÓµØµç¼«µÄµç×èµ¼ÖµĸԶ×ãó²î | R H(R S + 2000 ?)/R E x 1.25 x 10 -6% + 5 λÊý | |||
| R H ºÍ R µÄÕÉÁ¿Îó²îS | ͨ³£ÎªR E + R S + R µÄ 10 %H | |||
| zui´ó̽Õëµç×è | ≤ 1 MΩ | |||
| zui´ó¸¨Öú½ÓµØµç¼«µç×è | ≤ 1 MΩ | |||
| ÈôÊÇÎó²î´¦ÓÚ IEC61557-5 ÒªÇóµÄÏÞÖÆ¹æÄ£Ö®ÄÚ£¬£¬£¬Ôò»á×Ô¶¯¼ì²é¡£¡£¡£¡£ ÈôÊÇÓÉÓÚijЩÌõ¼þµÄÓ°Ï죬£¬£¬µ¼ÖÂÕÉÁ¿Ì½Õë¡¢¡¢¸¨Öú½ÓµØµç¼«ºÍ½ÓµØµç×èºóµÄÕÉÁ¿Îó²îÁè¼Ý 30%£¬£¬£¬ÏÔʾÆÁ½«ÏÔʾÖÒÑÔ·ûºÅ²¢ÌáÐÑ RS »ò RH ¹ý¸ß¡£¡£¡£¡£ | ||||
| ÕÉÁ¿·Ö±æÂʵÄ×Ô¶¯×ª»»È¡¾öÓÚ¸¨Öú½ÓµØµç¼«µç×è RH | ||||
| RH£¬£¬£¬U ÕÉÁ¿ = 48 V | < 300 Ω | |||
| < 6 Ω | ||||
| < 60 Ω | ||||
| < 600 Ω | ||||
| RH£¬£¬£¬U ÕÉÁ¿ = 20 V | < 250 Ω | |||
| < 2.5 kΩ | ||||
| < 25 kΩ | ||||
| < 250 kΩ | ||||
| ·Ö±æÂÊ | 1 mΩ | |||
| 10 mΩ | ||||
| 100 mΩ | ||||
| 1 Ω | ||||
| ½ÓµØµç×èµÄÑ¡ÔñÐÔÕÉÁ¿£¨R E ǯ¿Ú£© | ||||
| ÕÉÁ¿ÒªÁì | ƾ֤ EN61557-5 ±ê×¼ÓÃ̽ÕëÕÉÁ¿µçÁ÷ºÍµçѹ£¬£¬£¬²¢Í¨¹ýÌØÁíÍâµçÁ÷»¥¸ÐÆ÷ÕÉÁ¿µ¥¸ö֧·ÖеĵçÁ÷£¨ÊÊÓã©¡£¡£¡£¡£ | |||
| ¿ªÂ·µçѹ | 20/48 V ½»Á÷µç | |||
| ¶Ì·µçÁ÷ | 250 mA ½»Á÷µç | |||
| ÕÉÁ¿ÆµÂÊ | ÊÖ¶¯»ò×Ô¶¯Ñ¡Ôñ 94¡¢¡¢105¡¢¡¢111 ºÍ 128 Hz (AFC)£¬£¬£¬55 Hz (R*) | |||
| ÔëÉùÒÖÖÆ | 120 dB£¨162/3¡¢¡¢50¡¢¡¢60 ºÍ 400 Hz£© | |||
| zui´ó¹ýÔØ | zui´óU rms = 250 V£¨½«²»»áÆô¶¯ÕÉÁ¿£© | |||
| ÕÉÁ¿¹æÄ£ | 0.020 Ω ÖÁ 300 kΩ | |||
| ÏÔʾ¹æÄ£ | 0.001 Ω ÖÁ 2.999 Ω | |||
| 3.00 Ω ÖÁ 29.99 Ω | ||||
| 30.0 Ω ÖÁ 299.9 Ω | ||||
| 0.300 kΩ ÖÁ 2.999 kΩ | ||||
| 3.00 kΩ ÖÁ 29.99 kΩ | ||||
| ·Ö±æÂÊ | 0.001 Ω | |||
| 0.01 Ω | ||||
| 0.1 Ω | ||||
| 1 Ω | ||||
| 10 Ω | ||||
| ¾«¶È | ±£¨¶ÁÊýµÄ 7 % + 2 λÊý£© | |||
| ²Ù×÷Îó²î | ±£¨¶ÁÊýµÄ 10 % + 5 λÊý£© | |||
| ÓÉÓÚ̽ÕëºÍ¸¨Öú½ÓµØµä·¶µç¼«µç×èµ¼ÖµĸԶ×ãó²î | R H(R S + 2000 ?)/R ETOTAL x 1.25 x 10 -6% + 5 λÊý | |||
| R H ºÍ R µÄÕÉÁ¿Îó²îS | ͨ³£ÎªR ETOTAL + R S + R µÄ 10 %H | |||
| ÕÉÁ¿Ê±¼ä | Àο¿ÆµÂÊʱͨ³£Îª8 ÃëʹÓÃ×Ô¶¯ÆµÂÊ¿ØÖÆ£¬£¬£¬zui´ó 30 Ã룬£¬£¬Íê³ÉËùÓÐÕÉÁ¿ÆµÂÊÑ»·¡£¡£¡£¡£ | |||
| ´ý²âµ¥¸ö֧·µÄzuiСµçÁ÷ | 0.5 mA | ʹÓû¥¸ÐÆ÷ (1000:1) | ||
| 0.1 mA | ʹÓû¥¸ÐÆ÷ (200:1) | |||
| ͨ¹ý»¥¸ÐÆ÷µÄzui´ó×ÌÈŵçÁ÷ | 3:00 AM | ʹÓû¥¸ÐÆ÷ (1000:1) | ||
| * ʹÓÃÍÆ¼öµÄµçÁ÷ǯ/»¥¸ÐÆ÷¡£¡£¡£¡£ | ||||
| µç×èÕÉÁ¿ (R~) | ||||
| ÕÉÁ¿ÒªÁì | ÕÉÁ¿µçÁ÷ºÍµçѹ | |||
| ÕÉÁ¿µçѹ | 20 V ¾ØÐÎÂö³å½»Á÷µçѹ | |||
| ¶Ì·µçÁ÷ | > 250 mA ½»Á÷µç | |||
| ÕÉÁ¿ÆµÂÊ | ÊÖ¶¯»ò×Ô¶¯Ñ¡Ôñ 94¡¢¡¢105¡¢¡¢111 ºÍ 128 Hz (AFC) | |||
| ÕÉÁ¿¹æÄ£ | 0.020 Ω ÖÁ 300 kΩ | |||
| ÏÔʾ¹æÄ£ | 0.001 Ω ÖÁ 2.999 Ω | |||
| 3.00 Ω ÖÁ 29.99 Ω | ||||
| 30.0 Ω ÖÁ 299.9 Ω | ||||
| 300 Ω ÖÁ 2999 Ω | ||||
| 3.00 kΩ ÖÁ 29.99 kΩ | ||||
| 30.0 kΩ ÖÁ 299.9 kΩ | ||||
| ·Ö±æÂÊ | 0.001 Ω | |||
| 0.01 Ω | ||||
| 0.1 Ω | ||||
| 1 Ω | ||||
| 10 Ω | ||||
| 100 Ω | ||||
| ¾«¶È | ±£¨¶ÁÊýµÄ 2 % + 2 λÊý£© | |||
| ²Ù×÷Îó²î | ±£¨¶ÁÊýµÄ 5 % + 5 λÊý£© | |||
| ÕÉÁ¿Ê±¼ä | ͨ³£Îª 6 Ãë | |||
| zui´ó×ÌÈŵçѹ | 24 V£¬£¬£¬Áè¼Ý 24 V ÎÞ·¨Æô¶¯ÕÉÁ¿ | |||
| zui´ó¹ýÔØ | U rms zui´ó= 250 V | |||
| µç×èÕÉÁ¿£¨R Ö±Á÷£© | ||||
| ÕÉÁ¿ÒªÁì | ¿Éƾ֤ IEC61557-4 ¾ÙÐеçÁ÷-µçѹÕÉÁ¿ | |||
| ÕÉÁ¿µçѹ | 20 V Ö±Á÷µç | |||
| ¶Ì·µçÁ÷ | 250 mA Ö±Á÷µç | |||
| ÕÉÁ¿ÖµµÄ¹«Ê½ | ¹ØÓÚËļ«ÕÉÁ¿£¬£¬£¬¿ÉÑÓÉì H¡¢¡¢S¡¢¡¢ES µ¼Ïß¶ø²»»á±¬·¢¸Ô¶×ãó²î¡£¡£¡£¡£ µ¼Ïß E Öеĵç×è > 1 ? ʱ£¬£¬£¬¿Éµ¼Ö 5m ?/? µÄ¸Ô¶×ãó²î¡£¡£¡£¡£ | |||
| ÕÉÁ¿¹æÄ£ | 0.020 Ω ÖÁ 300 kΩ | |||
| ÏÔʾ¹æÄ£ | 0.001 Ω ÖÁ 2.999 Ω | |||
| 3.00 Ω ÖÁ 29.99 Ω | ||||
| 30.0 Ω ÖÁ 299.9 Ω | ||||
| 300 Ω ÖÁ 2999 Ω | ||||
| 3.0 kΩ ÖÁ 29.99 kΩ | ||||
| 30.0 kΩ ÖÁ 299.9 kΩ | ||||
| ·Ö±æÂÊ | 0.001 Ω | |||
| 0.01 Ω | ||||
| 0.1 Ω | ||||
| 1 Ω | ||||
| 10 Ω | ||||
| 100 Ω | ||||
| ¾«¶È | ±£¨¶ÁÊýµÄ 2 % + 2 λÊý£© | |||
| ²Ù×÷Îó²î | ±£¨¶ÁÊýµÄ 5 % + 5 λÊý£© | |||
| ÕÉÁ¿ÐòÁÐ | Ô¼ 2 ´ÎÕÉÁ¿/Ãë | |||
| ÕÉÁ¿Ê±¼ä | ͨ³£Îª 4 Ã룬£¬£¬°üÀ¨¼«ÐÔ·´×ª£¨¶þ¼«»òËļ«£© | |||
| zui´ó×ÌÈŵçѹ | Ö±Á÷»ò½»Á÷µçѹ ≤3 V£¬£¬£¬Áè¼Ý 3 V ÎÞ·¨Æô¶¯ÕÉÁ¿ | |||
| zui´ó¸ÐÓ¦ÂÊ | 2 Henry | |||
| zui´ó¹ýÔØ | U rms = 250 V | |||
| µ¼Ïßµç×èÅâ³¥ (R K) | ||||
| ÔÚ R [414]KÔÚ R [416]EÔÚ R [418]EÔÚ R [420] | ||||
| ÕÉÁ¿ÖµµÄ¹«Ê½ | R ÏÔʾÆÁ = R ²âµÃ - R Åâ³¥* | |||
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| ·Ö±æÂÊ | 0.001 Ω ÖÁ 0.1 Ω | |||
| ÕÉÁ¿¹æÄ£ | 0.02 Ω ÖÁ 199.9 Ω | |||
| ¾«¶È | ±£¨¶ÁÊýµÄ 7 % + 3 λÊý£© | |||
| ²Ù×÷Îó²î | ±£¨¶ÁÊýµÄ 10 % + 5 λÊý£© | |||
| ÕÉÁ¿µçѹ | Vm = 48 V ½»Á÷£¨³õ¼¶µçѹ£© | |||
| ÕÉÁ¿ÆµÂÊ | 128 Hz | |||
| ÔëÉùµçÁ÷ (IEXT) | zui´óIEXT = 10 A£¨½»Á÷£©(RA < 20 Ω) | |||
| zui´óIEXT = 2 A£¨½»Á÷£©(RA > 20 Ω) | ||||
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