公开(公告)号：WO2015001576A2

公开(公告)日：2015-01-08

申请号：PCT/IN2014000452

申请日：2014-07-07

Applicant: SELEC CONTROLS PVT LTD

Inventor： KAJI SAMIR

IPC: H01C10/00

CPC classification number: G01R27/02 ,  G01R19/175 ,  H01C10/00

Abstract: An apparatus for determining potentiometer indexed position is disclosed. The apparatus (100) comprises at least one potentiometer having a resistance R, a resistance R1 from a first end of the potentiometer to its wiper, and a resistance R2 from a second end of the potentiometer to its wiper; a capacitor (C); and a microcontroller (M) adapted to alternately put said resistances R1 and R2 in a circuit to obtain time (t 1 ) required for said capacitor to charge and time (t 2 ) required for said capacitor to discharge, to determine said potentiometer indexed position using equation [t 1 /(t 1 i+t 2 )]*total number of said potentiometer indexed positions.

Abstract translation: 公开了一种用于确定电位计分度位置的装置。 装置（100）包括至少一个具有电阻R的电位计，从电位器的第一端到其擦拭器的电阻R1和从电位器的第二端到其擦拭器的电阻R2; 电容器（C）; 以及适于将电阻R1和R2交替置于电路中的微控制器（M），以获得所述电容器充电所需的时间（t 1）和所述电容器放电所需的时间（t 2），以确定所述电位计分度位置 使用方程[t 1 /（t 1 i + t 2）] *所述电位计索引位置的总数。

公开(公告)号：WO2015025332A3

公开(公告)日：2015-06-04

申请号：PCT/IN2014000529

申请日：2014-08-19

Applicant: SELEC CONTROLS PVT LTD

Inventor： KAJI SAMIR

IPC: H01F27/00

CPC classification number: G01R15/183 ,  G01R35/02 ,  H01F38/32 ,  H01F38/38

Abstract: A current transformer system with characterization is disclosed. The current transformer system (100) comprises at least one current transformer unit (102) generating a secondary current output (112) relative to a primary current input (110), and a characterizing circuit (104) storing a set of characteristics measured under test conditions in a memory of the characterizing circuit which characteristics represent the relation between the primary current input (110) and the secondary current output (112) of the current transformer unit (102) under various operating conditions, the characterizing circuit (104) further communicating at least one of the characteristics via the communication interface (106) to an onward device to allow dynamic compensation for any errors in the characteristics of the at least one current transformer unit (102) at the device.

Abstract translation: 公开了具有表征的电流互感器系统。 电流互感器系统（100）包括相对于初级电流输入（110）产生二次电流输出（112）的至少一个电流互感器单元（102），以及存储在测试中测量的一组特性的表征电路（104） 表征电路的存储器中的条件，其特征表示在各种操作条件下电流互感器单元（102）的初级电流输入（110）和次级电流输出（112）之间的关系，表征电路（104）进一步连通 经由通信接口（106）到向前设备的特征中的至少一个，以允许动态补偿该设备处的至少一个电流互感器单元（102）的特性中的任何错误。