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: A3 r+ B0 V% b9 K9 m/ _
8 l/ s3 j6 u# f | Motors- i! ]6 r X4 f1 J3 i
| 4.4.2.43 V' ^ }( o( e" d' p
| 61010-1(ed.1);am1;am2/ }2 w; C- z3 l; ], J7 M
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" W* x3 D0 T6 `- d: P6 j& ~- F3 d- j
$ P! \7 p5 g- UStandard:
% _+ K7 T# L# Y7 g* NIEC 61010-1:1990 +A1:1992 + A2
) F& }2 O2 s* a; w7 w& f7 j7 M:1995, a3 {9 g# Z3 n$ h% {
Sub clause:
7 c# j8 H8 U) V5 H4.4.2.4# e/ l. G( z: a: ?8 I1 a. g8 B3 ]
Sheet n. 344
' b/ L) h) _' f6 a2 PPage 1(1)
: A, M R) O `/ [3 l6 N/ v' k: bSubject:
% B4 Q$ h7 W) M1 M3 W6 v0 O* yMotors. m" Y/ y% d9 c9 F# q8 o9 {- G
Key words:
5 L" s7 `) R' b- Locked rotor- q4 ~/ R I" Y; W* R% x
- Stopping rotor. Y3 A! a1 M" u
Decision taken by; k1 w) T8 I$ ]# F4 D4 C
ETF3 and confirmed/ i* b. ^; n1 m9 ?% Y+ r
by CTL at its 38th
6 e5 t/ t( E* h' q) _1 q: o: Rmeeting, in Toronto
; Z( }/ b; w& ^' W, h# rQuestion:7 Q2 x/ ~" a3 d) w, h
How do Test Houses perform these tests, in particular when motors are operating at high* v5 H- p/ D' D! ~' A5 F) A6 ^" H& W
speed?
# c) l8 N, U4 I Y+ {. \3 x3 gDecision:
) Z4 l9 G* o9 EIt was agreed that the following tests are required;8 x& l! Z. F8 J; N! E* C
1. Locking the rotor when stationary and3 h% v% L( R; }; z% J0 J
2. Stopping the rotor when at full speed. This does not necessarily imply an instantaneous& d2 w; s" x, Q
cessation of movement and a gradual slowing may be appropriate, for example, seizing) V/ N2 `" w- q" ?: ]9 }
of bearings.$ J/ ~0 u( ~' c) f( q6 f; S
. G' L. M k' Y
1 I o0 F. [' c5 }2 s# ~4 u
3 M! p3 s+ a. o v
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发表于 2012-9-18 16:32
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