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Discussion History

Protection and Monitoring

Assembly

Buchholz, pressure relief, and temperature devices, with the neutral CT feeding the earth-fault protection scheme. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Protection and Monitoring parts and their functions

5 top-level parts · 5 parts in total · full bill of materials below
Protection and Monitoring parts diagram: 1 buchholz relay, 2 pressure-relief device, 3 top-oil temperature indicator, 4 winding temperature indicator, 5 pressure sensor. 5 parts in 5 top-level items.
Protection and Monitoring parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Buchholz Relay 1× Buchholz relay
2 Pressure-Relief Device 1× Pressure-relief device
3 Top-Oil Temperature Indicator 1× Top-oil temperature indicator
4 Winding Temperature Indicator 1× Winding temperature indicator
5 Pressure Sensor 1× Oil pressure sensor

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Protection and Monitoring

5 top-level lines · 5 rows shown · 5 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Buchholz Relay grounding-transformer-buchholz 1× 1 · part
2 Pressure-Relief Device grounding-transformer-pressure-relief 1× 1 · part
3 Top-Oil Temperature Indicator grounding-transformer-oil-temp 1× 1 · part
4 Winding Temperature Indicator grounding-transformer-winding-temp 1× 1 · part
5 Pressure Sensor pressure-sensor 1× 1 · part

Where the protection and monitoring is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Grounding Transformer

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $3–$400. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳BOE
boe.com ↗ 		Beijing, CN Display panels 1,000 pcs 6–10 wks
🇨🇳Tianma
tianma.com ↗ 		Shenzhen, CN Display panels 1,000 pcs 6–10 wks
🇨🇳TCL CSOT
szcsot.com ↗ 		Shenzhen, CN Display panels 1,000 pcs 6–10 wks
🇨🇳Truly Opto
truly.net ↗ 		Shanwei, CN Displays & camera modules 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks