Product description:

I. overview

The transformer position transmitter is a kind of signal which can extract the tap position of the main transformer, and then it is converted into the corresponding input signal after the isolation

DC analog output device. The utility model can be widely used for the automatic monitoring of transformer operation state.

This product has the following characteristics:

"Safe and reliable

Also can receive up to 19 position signal

The wide input voltage range

The output is stable

Two, model

YWD-BC1 YDD-BC1-D

YWD-BC2 YDD-BC2-D

Three, wiring diagram

Figure 1ZJ-19ZJ is the transformer tap auxiliary contact, which corresponds to the transformer tap position. Which pair of contacts is closed indicates that the transformer taps

The position of the contact point. If the amount of these contact switches directly into the RTU digital input port, it will take up to 19 remote channel, even with the BCD code

Encoder matching, but also take up 5 remote, if there are more than one transformer, the resource occupation is quite serious. YDD series transformer tap position transmitter will

Transformer tap position signal is converted to DC output, occupying only a RTU telemetry channel.

Four, the main technical performance indicators

Long term stability: annual maximum change ± 0.1%

Input voltage: (Gao Dianping) DC12 ~ 24V

(low level) <1V

Input impedance: ≥ 5kΩ

Output: 0 ~ 5V ~ 1 ~ 5V

0 ~ 10mA ~ 0 ~ 20mA

Output ripple: 10mV

Load capacity: voltage output ≥ 2kΩ

Current output ≤ 750kΩ

Response time: ≤ 10ms

Insulation strength: AC2000V at input / output / enclosure / auxiliary power supply

Working temperature: -10 ~ 45 C

Storage conditions: -40 to 70 DEG relative humidity of 10 ~ 99%RH.

Auxiliary power supply: AC220V± 15% 50Hz± 10% DC220V± 30%

Power consumption: ≤ 1VA

Five, the overall size

110 mm × 75 mm × 117 mm;;

Six, input / output: (output 0-5V as an example)

YWD-BC1

The input code tap state output (mV) input code tap state output (mV) abcdeabcde0000000± 2500001102 500V± 251000010 250V± 2510001112 750V± 250100020 500V± 2501001123 000V± 251<,