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Beijing Eklens Electric Co., Ltd

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    Room 593, Building A, No. 9 Fengxiang East Street, Yangsong Town, Huairou District, Beijing

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Backboard installation PLC supply

NegotiableUpdate on 05/14
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Overview

Backplane installation PLC high reliability PLC protector is an intelligent protector based on PLC technology, which integrates relay protection, comprehensive measurement and control, data communication and other functions. Installed in explosion-proof cabinets, it is suitable for mining equipment such as feeding switches, starters, mobile transformer low-voltage heads, dual machine dual speed switches, etc. with voltage levels of 380V, 660V, 1140V, 3300V, and various rated currents.

Product Details

Backboard installation of PLCHigh reliability PLC protector is an intelligent protector based on PLC technology, which integrates relay protection, comprehensive measurement and control, data communication and other functions. Installed in explosion-proof cabinets, it is suitable for mining equipment such as feeding switches, starters, mobile transformer low-voltage heads, dual machine dual speed switches, etc. with voltage levels of 380V, 660V, 1140V, 3300V, and various rated currents.




Backboard installation of PLCThe highly reliable PLC protector has protection functions such as overvoltage, undervoltage, overload, short circuit, leakage, three-phase imbalance, and overtemperature. It can monitor the insulation resistance of the power grid, simulate leakage and short circuit tests, calculate zero sequence direction angle, total active power, and power factor, and comes with 8 DI, 6 DO, and 1 voltage type AI.






Technical Specifications

Input/output channel

Communication channel

three-phase voltage

(Ua、Ub、Uc)

0~14VAC, 精度1%F.S.

three-phase current

(Ia、Ib、Ic)

0~14VAC, Rated at 1VAC, with an accuracy of 1% (1% below rated value and 1% above rated value)

Zero sequence voltage (U0)

0~100VAC, 精度1%F.S.

Zero sequence current (I0)

0~500 μ A or 0~1.5VAC, accuracy 1% F.S

System voltage (Usys)

0~14VAC, 精度1%F.S.

signal frequency

47~53Hz, The above accuracy (1% F.S.) is the accuracy at a signal frequency of 50Hz, and the worst accuracy in other frequency ranges is 6% F.S

Zero sequence power factor angle

0~359 °, accuracy ≤ 3 °

DI channel

number of channels

8

performance metrics

8-way DI (source or drain type, 24VDC)

DO channel

number of channels

6

performance metrics

6-way normally open, contact capacity 3A, resistive load

AI channel

1 way AI

0~10VDC voltage signal input, accuracy 1% F.S

1st resistance measurement R2

0~300K Ω, accuracy 3% F.S

1-channel leakage resistor

Detecting RL

Measurement range: 0~1MΩ

0~100K Ω, accuracy:<3%

100k~1M Ω, accuracy:<5%

calculation parameters

active power

Three phase total active power P, accuracy 2% F.S

power factor

COSφ, Accuracy 2% F.S





  • Technical Specifications


Power Specifications

system power

input voltage

87VAC~264VAC

power consumption

15W

output power supply

Additional DC detection: 44VDC/1mA

VO+、VO-:24VDC(2W)












  • earth leakage protection

Judgment criteria

Rated operating voltage of main circuit (V)

Leakage action resistance setting value (K Ω)

Leakage lockout action resistance setting value (K Ω)

Action time of 1K Ω resistor quick break module

The main switch is equipped with additional DC detection,

The switch is used for zero sequence power directional detection (amplitude detection is also optional)

380

3.5

7

≤30ms

(Can be delayed)

660

11

22

1140

20

40

Explanation: When the insulation resistance rises to 1.5 times the blocking resistance, the switch automatically releases the blocking