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一、依据负载特性挑选变频器
二、挑选变频器时应以实践电机电流值作为变频器挑选的依据,电机的额外功率只能作为参阅。其次,应充分思考变频器的输出富含高次谐波,会形成电动机的功率因数和功率都会变坏。
三、变频器若要长电缆运转时,变频器应扩大一档挑选或在变频器的输出端装置输出电抗器。
四、当变频器用于操控并联的几台电机时,必定要思考变频器到电动机的电缆的长度总和在变频器的容许范围内。
五、关于一些特别的应用场合,如高环境温度、高开关频率、高海拔高度等,此刻会导致变频器的降容,变频器需扩大一档挑选.
六、挑选用于高速电动机的变频器时,应比一般电动机的变频器稍大一些。
七、变频器用于变极电动机时,应充分留意挑选变频器的容量,使其大额外电流在变频器的额外输出电流以下。
八、驱动防爆电动机时,变频器没有防爆结构,应将变频器设置在危险场合之外。
九、运用变频器驱动齿轮减速电动机时,运用范围受到齿轮滚动有些光滑方法的制约。不要超越高转速容许值。
十、变频器驱动绕线转子异步电动机时,大多是利用已有的电动机。容易发生因为纹波电流而导致的过电流跳闸景象,所以应挑选比一般容量稍大的变频器。
十一、变频器驱动同步电动机时,与工频电源比较,降低输出容量10%~20%。
十二、关于压缩机、振动机等转矩动摇大的负载和油压泵等有峰值负载状况下,应了解工频运转状况,挑选比其大电流更大的额外输出电流的变频器。
十三、当变频器操控罗茨风机时,因为其起动电流很大,所以挑选变频器时必定要留意变频器的容量是否足够大。
十四、挑选变频器时,必定要留意其防护等级是否与现场的状况相匹配。
十五、单相电动机不适用变频器驱动。
假如单有变频器本体的高可靠性,而变频器选型和容量匹配不适当,构成的变频调速体系也不可能到达很高的可靠性,乃至无法工作,那么如何来保证变频调整体系正常运转呢?
咱们要保证变频器的容量匹配。依据负荷性质,准确选用变频器类型。总的原则即是啥性质负载特性配啥特性的变频器。
(1)恒转矩出产设备--在调速范围内,负载力矩根本稳定不变。应选具有恒转矩功能的变频器。其过载才能为150%额外电流维持1分钟。
(2)平方转矩出产设备--在调速范围内,负荷力矩与转速的平方成正比,即M∝n2,离心式风机,水泵为它的典型代表。具有M∝n2特性的变频器其过载才能较小,110%-120%额外电流过载1分钟,
(3)恒功率负荷出产设备-在调速范围内,转速低力矩大;转速高力矩小,即M?NC(常数)。典型设备如机床及卷绕组织。
Motorola MCP750-1222
Motorola MCP750-1222A
Motorola MCP750-1232
Motorola MCP750-1232A
Motorola MCP750-1242
Motorola MCP750-1242A
Motorola MCP750-1252
Motorola MCP750-1252A
Motorola MCP750-1262
Motorola MCP750-1262A
Motorola MCP750HA-1222
Motorola MCP750HA-1222A
Motorola MCP750HA-1232
Motorola MCP750HA-1232A
Motorola MCP750HA-1242
Motorola MCP750HA-1242A
Motorola MCP750HA-1252
Motorola MCP750HA-1252A
Motorola MCP750HA-1262
Motorola MCP750HA-1262A
Motorola MCP750-1322
Motorola MCP750-1322A
Motorola MCP750-1332
Motorola MCP750-1332A
Motorola MCP750-1342
Motorola MCP750-1342A
Motorola MCP750-1352
Motorola MCP750-1352A
Motorola MCP750-1362
Motorola MCP750-1362A
Motorola MCP750HA-1322
Motorola MCP750HA-1322A
Motorola MCP750HA-1332
Motorola MCP750HA-1332A
Motorola MCP750HA-1342
Motorola MCP750HA-1342A
Motorola MCP750HA-1352
Motorola MCP750HA-1352A
Motorola MCP750HA-1362
Motorola MCP750HA-1362A
Motorola MCPN750-1222
Motorola MCPN750-1222A
Motorola MCPN750-1232
Motorola MCPN750-1232A
Motorola MCPN750-1242
Motorola MCPN750-1242A
Motorola MCPN750-1252
Motorola MCPN750-1252A
Motorola MCPN750-1262
Motorola MCPN750-1262A
Motorola MCPN750-1322
Motorola MCPN750-1322A
Motorola MCPN750-1332
Motorola MCPN750-1332A
Motorola MCPN750-1342
Motorola MCPN750-1342A
Motorola MCPN750-1352
Motorola MCPN750-1352A
Motorola MCPN750-1362
Motorola MCPN750-1362A
Motorola MCPN750-1422
Motorola MCPN750-1422A
Motorola MCPN750-1432
Motorola MCPN750-1432A
Motorola MCPN750-1442
Motorola MCPN750-1442A
Motorola MCPN750-1452
Motorola MCPN750-1452A
Motorola MCPN750-1462
Motorola MCPN750-1462A
Motorola MCPN765-1271
Motorola MCPN765-2241
Motorola MCPN765-6171
Motorola MEMSD256-K
Motorola MM-6260AD-32M
Motorola MPMC101
Motorola MPMC202
Motorola MPMC221
Motorola MPMC221
Motorola MPMC222
Motorola MPMC222
Motorola MPMC282-012
Motorola MPMC282-012A
Motorola MPMC301-001
Motorola MTX604-004A
Motorola MTX604-010A
Motorola MTX604-010A Dual 300MHz
Motorola MVIP302
Motorola MVIP303
Motorola MVIP341
Motorola MVIP530
Motorola MVME025
Motorola MVME101
Motorola MVME104
Motorola MVME105
Motorola MVME106
Motorola MVME110
Motorola MVME110-1 MVME110
Motorola MVME117
Motorola MVME117-3
Motorola MVME117-3F
Motorola MVME123
Motorola MVME1301
Motorola MVME1302
Motorola MVME1303
Motorola MVME1304
Motorola MVME1305
Motorola MVME1306
Motorola MVME132DOF MVME132 DOF
Motorola MVME132XT
Motorola MVME133
Motorola MVME133-1
Motorola MVME133A-20
Motorola MVME133SA-020A MVME133SA MVME133SA-20A
Motorola MVME133XT
Motorola MVME134
Motorola MVME135A
Motorola MVME141-1
Motorola MVME142-012
Motorola MVME142-012A
Motorola MVME143 MVME143-2
Motorola MVME147
Motorola MVME147A
Motorola MVME147-010
Motorola MVME147-010A
Motorola MVME147-011 MVME147-11
Motorola MVME147-011A MVME147-11A
Motorola MVME147-012
Motorola MVME147-012A
Motorola MVME147-013
Motorola MVME147-013A
Motorola MVME147-014
Motorola MVME147-022
Motorola MVME147-022A
Motorola MVME147-1
Motorola MVME147S
Motorola MVME147S-1
Motorola MVME147SA-1
Motorola MVME147SB-1
Motorola MVME147SB-2
Motorola MVME147SC-2
Motorola MVME147SRF
Motorola "MVME1600-001 MVME1600-011
MVME1604 MVME1603"
Motorola MVME1600-024 MVME1600-001
Motorola MVME162-001 MVME162-01
Motorola MVME162-010
Motorola MVME162-010A
Motorola MVME162-011 MVME162-11
Motorola MVME162-011A MVME162-11A
Motorola MVME162-012 MVME162-12
Motorola MVME162-012A MVME162-12A
Motorola MVME162-013 MVME162-13
Motorola MVME162-013A MVME162-13A
Motorola MVME162-013A MVME162-13A
Motorola MVME162-020 MVME162-20
Motorola MVME162-020A MVME162-02A
Motorola MVME162-021 MVME162-21
Motorola MVME162-022 MVME162-22
Motorola MVME162-023 MVME162-23
Motorola MVME162-023A MVME162-23A
Motorola MVME162-031 MVME162-31
Motorola MVME162-032 MVME162-32
Motorola MVME162-033 MVME162-33
Motorola MVME162-040 MVME162-40
Motorola MVME162-042 MVME162-42
Motorola MVME162-211
Motorola MVME162-010
Motorola MVME162-213
Motorola MVME162-215
Motorola MVME162-222
Motorola MVME162-223
Motorola MVME162-253
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Motorola MVME162-283
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Motorola MVME162-412
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Motorola MVME162-420
Motorola MVME162-423
Motorola MVME162-432
Motorola MVME162-433
Motorola MVME162-510
Motorola MVME162-510A
Motorola MVME162-512A
Motorola MVME162-513
Motorola MVME162-513A
Motorola MVME162-522A
Motorola MVME162-523
Motorola MVME162-523A
Motorola MVME162-532
Motorola MVME162-532A
Motorola MVME162-533A
Motorola MVME162P-242E
Motorola MVME162P-242L
Motorola MVME162P-242LE
Motorola MVME162P-242LSE
Motorola MVME162P-244LE
Motorola MVME162P-252SE
Motorola MVME162P-344
Motorola MVME162P-344E
Motorola MVME162PA-242LE
Motorola MVME162PA-244L
Motorola MVME162PA-244LE
Motorola MVME162PA-244LSE
Motorola MVME162PA-344
Motorola MVME165
Motorola MVME165-01 MVME165-010
Motorola MVME166-11A MVME166-011A
Motorola MVME166-12A MVME166-012A
Motorola MVME166-13A MVME166-013A
Motorola MVME166-14A MVME166-014A
Motorola MVME167
Motorola MVME167-02A MVME167-002A
Motorola MVME167-02B MVME167-002B
Motorola MVME167-031A MVME167-31A
Motorola MVME167-032B MVME167-32B
Motorola MVME167-033A MVME167-33A
Motorola MVME167-033B MVME167-33B
Motorola MVME167-034A MVME167-34A
Motorola MVME167-034B MVME167-34B
Motorola MVME167-034B MVME167-34B
Motorola MVME167-035B MVME167-35B
Motorola MVME167-036B MVME167-36B
Motorola MVME167-03B MVME167-003B
Motorola MVME167-04 MVME167-004
Motorola MVME167-005B MVME167-05B
Motorola MVME167-006B MVME167-06B
Motorola MVME167A
Motorola MVME167B
Motorola MVME167C
Motorola MVME167P-24SE
Motorola MVME167P-35SE
Motorola MVME167PA-36SE
Motorola MVME167P-36SE
Motorola MVME172-213
Motorola MVME172-223
Motorola MVME172-253
Motorola MVME172-263
Motorola MVME172-413
Motorola MVME172-433A
Motorola MVME172-453
Motorola MVME172-523
Motorola MVME177-002
Motorola MVME177-003
Motorola MVME177-004
Motorola MVME177-005
Motorola MVME177-006
Motorola MVME177-012
Motorola MVME177-013
Motorola MVME177-014
Motorola MVME177-015
Motorola MVME177-016
Motorola MVME177P-54SE
Motorola MVME177P-5B
Motorola MVME187-002B MVME187-02B
Motorola MVME187-003B
MVME187-03B
Motorola MVME187-004B MVME187-04B
Motorola MVME187-034A MVME187-34A
Motorola MVME187B
Motorola MVME187C
Motorola MVME188 MVME188A MVME188QP MVME188DP MVME188DP-2-64 MVME188QP-2-128
Motorola MVME188 MVME188A MVME188SP-2 1P128
Motorola MVME197-001 (NEW)
Motorola MVME197-002
Motorola MVME197DP (128MB)
Motorola MVME197DP (256MB)
Motorola MVME197LE 50MHz 32MB (NEW)
Motorola MVME197LE 50MHz 64MB
Motorola MVME197LE/MVME297-002 50MHz 128MB
Motorola MVME197LE/MVME297-003 50MHz 192MB
Motorola MVME197LE/MVME297-004 50MHz 310MB
Motorola MVME197LE/MVME297-128 50MHz 192MB
Motorola MVME197QP 512MB
Motorola MVME197SP 50MHz 128MB
Motorola MVME197SP/MVME297-003 50MHz 256MB
Motorola MVME202
Motorola MVME204-1
Motorola MVME204-2
Motorola MVME204-2F
Motorola MVME205
Motorola MVME211
Motorola MVME214
Motorola MVME215
Motorola MVME215-1
Motorola MVME222-1
Motorola MVME222-2
Motorola MVME224
Motorola MVME224-1
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Motorola MVME224A-1
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Motorola MVME224A-4
Motorola MVME225-2
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Motorola MVME2301-900
Motorola MVME230-3
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Motorola MVME2306 MVME2306-900
Motorola MVME2306A
Motorola MVME2307 MVME2307A
Motorola MVME236-3
Motorola MVME2400-0141
Motorola MVME2400-0331
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Motorola MVME2432-1
Motorola MVME2432-3
Motorola MVME2433-1
Motorola MVME2433-3
Motorola MVME2600-2
Motorola MVME2603-2131A
Motorola MVME2603-3141
Motorola MVME2603-3151
Motorola MVME2604-1131A
Motorola MVME2604-1141A
Motorola MVME2604-2141A
Motorola MVME2604-3321
Motorola MVME2604-3331
Motorola MVME2604-3341
Motorola MVME2604-3351
Motorola MVME2604-3361
Motorola MVME2604-3371
Motorola MVME2700-1221
Motorola MVME2700-1231
Motorola MVME2700-1241
Motorola MVME2700-1251
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Motorola MVME2700-1321
Motorola MVME2700-1331
Motorola MVME2700-1341
Motorola MVME2700-1351
Motorola MVME2700-1361
Motorola MVME2700-1421
Motorola MVME2700-1431
Motorola MVME2700-1441
Motorola MVME2700-1451
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Motorola MVME2700-3221
Motorola MVME2700-3231
Motorola MVME2700-3241
Motorola MVME2700-3251
Motorola MVME2700-3261
Motorola MVME2700-3321
Motorola MVME2700-3331
Motorola MVME2700-3341
Motorola MVME2700-3351
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Motorola MVME2700-3441
Motorola MVME2700-3451
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Motorola MVME2700-4221
Motorola MVME2700-4231
Motorola MVME2700-4241
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Motorola MVME2700-4421
Motorola MVME2700-4431
Motorola MVME2700-4441
Motorola MVME2700-4451
Motorola MVME2700-4461
Motorola MVME297-002 64MB
Motorola MVME297-003 128MB
Motorola MVME297-004 256MB
Motorola MVME297-128 128MB
Motorola MVME300
Motorola MVME300
Motorola MVME300A
Motorola MVME315
Motorola MVME316
Motorola MVME320A
Motorola MVME323
Motorola MVME323-1
Motorola MVME323S
Motorola MVME327A
Motorola MVME328-1
Motorola MVME328S-1
Motorola MVME328S-2
Motorola MVME328XT-1
Motorola MVME328XT-2
Motorola MVME330-2
Motorola MVME331
Motorola MVME332
Motorola MVME332XT
Motorola MVME332XTS
Motorola MVME332XTS
Motorola MVME333-2
MVME333
Motorola MVME333S-2 MVME333S MVME333S-002
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Motorola MVME334
Motorola MVME334A
Motorola MVME334B
Motorola MVME335
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Motorola MVME337-1
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Motorola MVME339
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Motorola MVME3604-5342
Motorola MVME3604-5352
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Motorola MVME3604-6352
Motorola MVME372
Motorola MVME374
Motorola MVME374-1
Motorola MVME376
Motorola MVME385
Motorola MVME385-120
Motorola MVME393
Motorola MVME4604-1141 Dual 200MHz 64MB
Motorola MVME4604-5362 Dual 300MHz 256MB
Motorola MVME4604-5462
Dual 400MHz 256MB
Motorola MVME5100-0131
Motorola MVME5110-2251
Motorola MVME705-1
Motorola MVME705A
Motorola MVME705A
Motorola MVME705B
Motorola MVME710B
Motorola MVME712-104
Motorola MVME712M
Motorola MVME712M MVME712/M
Motorola MVME714
Motorola MVME719
Motorola MVME741
Motorola MVME742
Motorola MVME761-001
Motorola MVME761EXT
Motorola MVME785-MIC
Motorola MVME854TK 01-W2755D01C
Motorola MVME946
Motorola MVPI300
Motorola MVSB741
Motorola PMC-Span 01-W3298F01A
Motorola PPMC750-1231
Motorola PV5300B33
Motorola SMMXER3E100X0
Motorola SuperNode system with the following boards: 01-W1589B01C 01-W1590B01B 01-W1591B04L 01-W1644B04BB 01-W2844D01H 01-W2844D02H 01-W2845D03G 01-W2845D04G 01-W3896B01F
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Motorola XR-342 XR342
Motorola XR712-121K
Motorola XR712-123TPK