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Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing

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Certification
China Beijing Tianyihongda Science & Technology Development Co., LTD certification
China Beijing Tianyihongda Science & Technology Development Co., LTD certification
Super friendly service, the Power Line Fault Indicator high quality as expected and very economy and environmental protection.

—— Bruce

This is the first time i do Underground Cable Fault Indicator business , after i received , it is work well. and now i want to order more.

—— Joseph

Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing

Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing
Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing

Large Image :  Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing Get Best Price

Product Details:

Place of Origin: Beijing,China
Brand Name: Tianyihongda
Certification: type test report
Model Number: TYHD-FTU6

Payment & Shipping Terms:

Minimum Order Quantity: 1set(3pcs)
Price: Negotiation
Packaging Details: standard export package
Delivery Time: within 3-5 working days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000 sets per month
Detailed Product Description
3I>Curve Select: 0-5;0:OFF 1:three Section Of Three-section Protection 2:IEC SI 3:IEC LTI 4:IEC EI 3I> Amp: 0.010-10*In;Setting The Three Section Of Three-section Protection
3I> Time: 0.00-600.00S;Time Delay For Export O->I Switching: ON/OFF; Enter Or Exit Of Zero-sequence Reclosing Function, ON As Enter, OFF As Exit
Open Time: 0.10-600.00S O->I Lockout Opening Time
High Light:

feeder remote terminal unit

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dsp digital signal processor

Length of cable at switch load side (m)   50 100 150 200 250 300 350 400 450
Length of overhead line at switch load side (m) <1000 <4000                
Fixed value (A) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Length of cable at switch load side (m) 480 500 550 600 650 700 750 800 850 900
Fixed value (A) 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0

Calculation formula for fixed values: Fixed value of current =1.5×3×(S1×L1+S2×L2)

L1 is the total length of overhead line at boundary switch load side. S1 is the empirical value of capacitive current of overhead line per km per phase. The recommended value is 0.02A/km.

L2 is the total length of cable at boundary switch load side. S2 is the empirical value of capacitive current of cable per km per phase. The recommended value is 1A/km.

Choose 1S when the neutral point is not earthed or earthed by arc suppression coil. Choose OS or lower when the neutral point is earthed by low resistance.

The calculation of fixed values for zero-sequence protection current only depends on the direct earth capacitance of cable or overhead line at switch load side. The table above is the results of approximate amount multiplied by safety factor. Users can calculate personally according to the actual condition of the line at switch load side. If there are both cable and overhead line at switch load side, add their direct earth capacitances together. The safety factor shall be chosen between 1.5~3 (It is recommended that a larger safety factor shall be chosen when the fixed value is relatively small, while a smaller one shall be chosen when the fixed value is relatively large.)

Enter Main Menu

When the system is idle, press “VIEW” to enter the main menu

After entering the main menu, press “ESC” to exit to idle status.

Switching of Menu Content

After entering the main menu, press “ENT” to select the content, press “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 0” or “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 1” to switch the content, and press “VIEW” to enter corresponding menu.

Press “ESC” to exit to idle status.

Modifying Fixed Value

After entering fixed value interface, press “ENT” to confirm the fixed value item and press “ENT” again to confirm the modification of fixed value. Press number buttons “0” to “9” to input the fixed value parameters. Press “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 2” or “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 3” to change the data position and press “SET” to save the fixed value (Press “ESC” to give up the modification and the fixed value after modification will not be saved).

After entering fixed value interface, press “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 4” or “Strong Stability Power Distribution Terminal For Overhead Line Zero Sequence Reclosing 5” to switch the fixed value interfaces.

After entering fixed value interface, press “ESC” to exit to the main menu.

Contact Details
Beijing Tianyihongda Science & Technology Development Co., LTD

Contact Person: angel

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