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31.6 The defined load referred to in 31.2 is:8 m' d: R M% k0 F
a) The output power load as determined from Figure 31.1 following measurement of the output
2 n, L/ O r$ X1 I: ?power obtained when load voltage is 85 percent of the open circuit voltage;' K; G: n. S, K, ^, K+ k) M
b) The marked rating of the transformer if greater than the output determined as in (a); or
' Y4 [9 z O4 N! P8 ^& L( p2 H+ pc) The marked rating of the transformer if less than the output determined as in (a) and the
# c+ y* A; p7 V1 e4 W- b: }" jtransformer is provided with a protective device that operates when the transformer output3 f% i5 L9 |* M: s
power is 110 percent of the marked values
1 U [4 |9 f9 T+ `# u6 ~
$ J% b* f+ A' r5 x3 i! m8 o, \上述为玩具变压器的UL697温升测试,特定负载的要求.如何理解.如何计算出所带负载.1 `7 d- V4 b0 A1 j% e* D2 n
有做过的高手请解惑.谢谢!% ]' Z! \5 i: U: M$ E! m7 q
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