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Tripping Circuit of 33 KV Outdoor GO VCB

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.4″ text_font=”Lato||||||||” text_line_height=”1.3em” custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”]There are two Tripping Circuits in the Breaker, Called a Trip Circuit 1 and Trip Circuit 2. Both this Tripping Circuits should have different DC Supply and different Tripping.  Tripping Circuit of VCB can be divided into…

Troubleshooting Circuit Breaker not Closing Electrically Problem in 33 KV Outdoor GO VCB
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Troubleshooting Circuit Breaker not Closing Electrically Problem in 33 KV Outdoor GO VCB

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.5″ text_font=”Lato||||||||” text_line_height=”1.3em” custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] A very common problem in EHV Substations, Circuit Breaker not closing Electrically.  The Troubleshooting steps are as under: [/et_pb_text][et_pb_text _builder_version=”3.19.3″ text_font=”Lato||||||||” text_line_height=”1.3em” box_shadow_style=”preset1″ custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] Step 1: Basic Checks: Check the DC Supply to…

Closing Circuit of 33 kv Outdoor Gang Operated Vaccume Circuit Breaker

Closing Circuit of 33 kv Outdoor Gang Operated Vaccume Circuit Breaker

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.5″ text_font=”Lato||||||||” text_line_height=”1.3em” custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] There are following elements in the Closing Circuit: Closing Coil TNC Switch Closing Resistance NC Aux Contact 52b Antipumping Relay Local Remote Switch [/et_pb_text][et_pb_text _builder_version=”3.19.3″ text_font=”Lato||||||||” text_line_height=”1.3em” box_shadow_style=”preset1″ custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] Closing Coil: A permanat…

Control Circuit of 33 KV Outdoor Vaccume Circuit Breaker

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.3″ text_font=”Lato||||||||” text_line_height=”1.3em” custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] Control Circuit can be divided into following Circuits: DC Supply to the Breaker Closing Circuit Tripping Circuit Indication Circuit Spring Charge Motor Control Circuit. [/et_pb_text][et_pb_text _builder_version=”3.19.3″ text_font=”Lato||||||||” text_line_height=”1.3em” box_shadow_style=”preset1″ custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”] DC Supply to…

Inter panel Looping of 220 KV Control Panel and Relay Panel

Inter panel Looping of 220 KV Control Panel and Relay Panel

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.2″ text_font=”Georgia||||||||” text_line_height=”1.3em” box_shadow_style=”preset1″ custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia” custom_margin=”28px||”] Following wiring is present in 220 KV Control Panel and Relay Panel: Internal Wiring: Wiring inside the Control Panel or the Relay Panel. External Wiring: Control Panel/Control Panel  Wiring with Equipments in the yard. Inter-panel Wiring:Wiring…

Insulation Resistance Test for Current Transformer

Aim/Purpose of the IR Test: To ensure that, each winding of the Current Transformer, has sufficient Insulation Resistance with respect to Earth (CT Body) and between the two Secondary Cores. Principle: Insulation Resistance is the Ratio of the Applied Voltage (DC) to the total Leakage Current. Leakage current should be as small as possible ,…

Black Starting an Island in Power System

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19″ text_font=”||||||||” box_shadow_style=”preset1″ custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia”] Restoration: After a Grid Failure, the Grid is restored by creating small Islands, which are seperately powered. These Islands are then synchronised and interconnectd, with other such Islands, untill the complete Grid is restored. [/et_pb_text][et_pb_text _builder_version=”3.19″ text_font=”||||||||” box_shadow_style=”preset1″…

What is an Electrical Transformer

[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_accordion open_toggle_background_color=”#FFFFFF” _builder_version=”3.19″ body_font=”Georgia||||||||” body_text_align=”left” body_text_color=”#000000″ body_font_size=”16px” body_line_height=”1.5em” toggle_font=”Arial|600|||on|||#0400f0|solid” toggle_text_align=”left” toggle_text_color=”#0038f0″ toggle_font_size=”18px” box_shadow_style=”preset1″ text_orientation=”left”][et_pb_accordion_item title=”Defination:” open=”on” _builder_version=”3.19″ title_text_shadow_horizontal_length=”0em” title_text_shadow_vertical_length=”0em” title_text_shadow_blur_strength=”0em” body_text_shadow_horizontal_length=”0em” body_text_shadow_vertical_length=”0em” body_text_shadow_blur_strength=”0em”] Transformer is a Static Electromagnetic Device which  works on the principle of Mutual Induction and Transfers, Electrical Energy from One Circuit to…

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