Feeder Remote Terminal Units

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Last update: 2017-12-04 09:09
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Product details

PSW200 type Ring Main Unit boundary switch controller 

Summary

According to integrated domestic and foreign advanced technology, the actual demand of the power distribution area, PSW200 Ring Main Unit boundary switch controller is the latest development of the company's new generation watchdog controller. The equipment is installed on the responsibility boundary point of 10kV overhead distribution line, which can achieve to automatically remove single phase to earth fault and isolate phase short circuit fault.

Ring Main Unit boundary switch controller is designed for demarcation of the switch body intelligent control to protect the control function and communication function, controller and  switch body through the control cable and the aviation connector are electrically connected to achieve the protection and automatic monitoring function. The product is widely used in urban and rural 10kV overhead distribution line.

Product features

· Device using zero sequence power direction criterion, can accurately judge the single-phase grounding fault inside and outside the world.

· The device can be applied to the ground system of neutral point, small resistance grounding and arc suppression coil grounding system.

· Device resistor divider voltage sensor or voltage transformer, the internal circuit and voltage signal isolation device.

· The device can be used to shield the electromagnetic interference and improve the stability of the product.

· With battery management function. To prevent battery over charge, over discharge, improve battery life.

· Controller with data communication function can be achieved the background of data exchange through the GPRS data communication module.

Main functions

· Measurement function: three-phase voltage, current, zero sequence voltage, current, 16-48 remote signaling, 26 remote signaling.

· Protection function: single phase earth protection: interphase short circuit protection ,over current protection, over and under voltage protection,acceleration reclosure brake.

· Automation function: reclosing, incident record, communication.

Boundary switch fault action principle

Fault type

System mode

Switch type

Circuit breaker

Load switch

Single phase earth fault

The neutral point  not grounding or grounding by arc suppression coil

In- bound

Out- bound

In-bound

Out- bound

Automatic switch-opening

No action

Automatic switch-opening

No action

Neutral point via small resistance grounding system

Switch-opening prior to substation protection

No action

Switch-opening prior to substation protection

No action

Inter-phase short-circuit fault

Automatic switch-opening

No action

Cooperate with superior protection, delay action

No action

Technical data

Protection error

The setting error of current is no more than ±3% (or 0.02In), and the setting error of action is no more than ±3%.

Return coefficient

Lower than 0.95

Switch opening & closing pulse-width setting range

0.1s~9.9s,Setting range 0.01s,factory setting is 0.1s.

Switch opening & closing exit contact capacity

AC250V/5A.

Working power supply

AC85V-265V,Overall power consumption≯5W。

Normal operating temperature range

-25~+60℃

Storage and transportation temperature

-55~+85℃

Relative humidity

≯95%

Device dimensions

183*170*132

Hole dimensions

144*134

PSW200 boundary switch controller unit is composed of a 128*64 graphics dot matrix liquid crystal, 10 indicators and 5 buttons:


The status indicator is made up of 10 indicator lights, each of which is as follows: 

Indicating lamp

Function

Power Supply

After the device is powered on, the power lamp is always on.

Operation

After electrify self-checking of device is normal, the operating lamp flashes

Close position

After close position input signal high-level input, "Close" indicating lamp is always on

Open position

After open position input signal high-level input, "Open" indicating lamp is always on

Energy storage

After energy storage input signal high-level input, the "Energy storage" indicating lamp is always on.

Over current alarm

When short-circuit fault signal is detected, the "over current alarm" indicating lamp is turned on.

Grounding alarm

When earth fault signal is detected, the “grounding alarm“ indicating lamp is turned on.

Protective release

When controller makes tripping action, the "protective release" indicating lamp is turned on.

Air pressure warning

After air pressure warning input signal high-level input, the "air pressure warning" indicating lamp is always on.

Voltage alarm

When under-voltage, over-voltage fault alarm, the "voltage alarm" indicating lamp is turned on.

Keyboard is composed of 5 keys, the key functions are as follows: 

 Key

Main function

OK

Confirm / select

Cursor movement / Increasing

Used for up and down movement and large step increase or decrease

Cursor movement / decrement

Cursor movement / Increasing / Return

Used for left and right movement and small step increase or decrease

Cursor movement / decrement

Power board air plug connection definition

Terminal connection definitionX1

1

2

3

4

5

6

7

8

DC24V

Storage battery


AC220V

Chassis ground

+

-

+

-


L

N

FGND

X2

1

2

3

4

5

6

7

8

9

10

11

12

Current sampling

Voltage sampling

IA

IA’

IB

IB’

IC

IC’

IO

IO’

VA

VB

VC

VN

X3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Remote signal input

Protective tripping

Remote output

common port

Close

Open

Energy storage

Release

Grounding Switch

Remote

Locking

Air pressure warning

reclosing

trip

common port

Close

Open

X4

1

2

3

4

5

6

Communication port

GND

232

232

485+

485-


Dimension chart

The device made of aluminum alloy material form a shield as a whole, which can effectively reduce the interference of the outside EMC.

Hyliton Power Technology is one of the largest and experienced manufacturers and suppliers of high-tech products in China who can offer you advanced and high quality feeder remote terminal units OEM at competitive price. Welcome to order our CE feeder remote terminal units made in China.

       

Download the specifications of more types of CT Powered Feeder Protection Device


PSW100 Download.pdf


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