Energy
15 columns
1,000 rows
8 formats

Circuit Breaker Timing and Contact Wear Analysis

This dataset provides detailed records of circuit breaker maintenance tests, including timing measurements, contact resistance, SF6 gas pressure, operating mechanism assessments, and contact wear. It enables reliability analysis, predictive maintenance, and asset management for electrical substations and power grids.

last updated 1 Nov 2025
by GoMask

The brief that made it

Predictive maintenance scheduling for circuit breakers

Sample rows

preview · 8 of 1,000 rows · all 15 columns

test_idstring	operating_mechanism_conditionstring	contact_wear_percentfloat	manufacturerstring	breaker_idstring	locationstring	modelstring	test_datedate	contact_travel_time_msfloat	opening_time_msfloat	closing_time_msfloat	contact_resistance_micro_ohmfloat	sf6_gas_pressure_mpafloat	technician_namestring	remarksstring
CBT10001	Good	21.3	ABB	BRK0001	Central Substation	Emax2-T4	2024-03-09	32.5	70.2	68.1	71.2	0.39	Alex Kim	Routine inspection. All parameters normal.
CBT10002	Good	18.9	Siemens	BRK0002	East Valley Station	3WL-1600	2024-03-08	36.7	74.4	71.5	85.9	0.42	Morgan Lee	Breaker in excellent condition.
CBT10003	Needs Maintenance	31.1	GE	BRK0003	West Ridge Hub	EntelliGuard G	2024-02-27	25.2	61.8	65.3	77.4	0.36	Sonia Patel	Slightly elevated contact wear. Schedule maintenance.
CBT10004	Good	24.6	Schneider	BRK0004	North Point Yard	Masterpact NW	2024-03-03	37.6	79	75.8	95.1	0.41	Chris Wong	No issues detected.
CBT10005	Good	26.7	Mitsubishi	BRK0005	South Gate Facility	AE-SW	2024-01-29	41.3	80.5	82.1	103.9	0.38	Derek Evans	Breaker operating within normal parameters.
CBT10006	Faulty	89.5	ABB	BRK0001	Central Substation	Emax2-T4	2024-02-18	110.2	218.4	210.7	400	0.12	Alex Kim	Major fault detected. Immediate replacement required.
CBT10007	Good	14.2	Hitachi	BRK0006	Lakeside Unit	HV-2000	2024-03-12	27.8	66.9	62.2	80.7	0.33	Rachel Tan	Routine test, all results satisfactory.
CBT10008	Good	19.8	Siemens	BRK0002	East Valley Station	3WL-1600	2024-02-23	29.3	63.2	69.4	82.6	0.44	Morgan Lee	All measurements within range.
CBT10009	Good	28.4	GE	BRK0007	Riverbend Substation	EntelliGuard G	2024-03-01	34	70.7	72.1	92.3	0.4	Timothy Duran	Inspection passed. No action needed.
CBT10010	Needs Maintenance	34.6	Schneider	BRK0008	Hilltop Station	Masterpact NW	2024-02-16	38.9	77.3	77.8	99.7	0.43	Chris Wong	Contact wear starting to trend up.
CBT10011	Faulty	95	Siemens	BRK0002	East Valley Station	3WL-1600	2024-01-26	115	220	215	399	0.09	Morgan Lee	Critical wear detected. Immediate shutdown.
CBT10012	Good	13.7	Mitsubishi	BRK0009	Metro Center	AE-SW	2024-03-10	22.1	59.4	63.7	60.8	0.38	Derek Evans	All readings nominal.
CBT10013	Good	25.2	GE	BRK0003	West Ridge Hub	EntelliGuard G	2024-03-06	40.5	84.2	80.6	102.4	0.42	Sonia Patel	Breaker passed all tests.
CBT10014	Needs Maintenance	30.5	ABB	BRK0010	Summit Yard	Emax2-T4	2024-02-24	33.7	68	73.2	87.6	0.35	Alex Kim	Some wear observed, schedule service.
CBT10015	Good	17.8	Schneider	BRK0004	North Point Yard	Masterpact NW	2024-03-11	28.6	62.9	67.4	79.2	0.37	Chris Wong	Breaker in very good shape.
CBT10016	Good	27.3	Mitsubishi	BRK0005	South Gate Facility	AE-SW	2024-02-20	44.1	83.6	81.2	108.4	0.39	Derek Evans	Normal wear, no action needed.
CBT10017	Good	15.4	Hitachi	BRK0006	Lakeside Unit	HV-2000	2024-02-25	30	65.6	66.3	81.6	0.34	Rachel Tan	System check completed.
CBT10018	Good	29.1	GE	BRK0007	Riverbend Substation	EntelliGuard G	2024-02-21	31.2	69.2	70.9	88.7	0.39	Timothy Duran	Breaker in normal operating condition.
CBT10019	Needs Maintenance	35.9	Schneider	BRK0008	Hilltop Station	Masterpact NW	2024-03-02	39.7	78.1	76.3	101.2	0.4	Chris Wong	Wear trending up, plan service soon.
CBT10020	Faulty	90.8	ABB	BRK0001	Central Substation	Emax2-T4	2024-01-31	113.8	219.3	213.2	398.7	0.1	Alex Kim	Breaker failed test, urgent replacement advised.

What the 1,000 rows show

from the 1,000-row sample

Faulty (operating mechanism condition) stands out: mean contact_wear_percent is 70.8, against 26.9 for the rest.

25.3median contact_wear_percent
145models
173locations
205technician names
206breakers
38.5median contact_travel_time_ms

Mean contact_wear_percent by operating_mechanism_condition1,000 rows

contact_wear_percent1,000 rows, in bands of 10

Median 25.3, from 0.0 to 100.0.

manufacturer1,000 rows · top 10 of 13 values

Siemens162
ABB157
Schneider153
Eaton125
Hitachi122
GE121
Mitsubishi88
General Electric20
Alstom18
Hyundai15

15 columns by typefrom the column list below

string 8
float 6
date 1

Columns

15 columns in three groups

blueprint · 15 columns
column	type	description	example
Text 8 columns
`test_id`	string	Unique identifier for each maintenance test recordunique	CBT10001
`breaker_id`	string	Unique identifier for the circuit breaker being tested	BRK0001
`location`	string	Physical location or substation of the circuit breaker	Central Substation
`manufacturer`	string	Manufacturer of the circuit breakeroptional	ABB
`model`	string	Model number or name of the circuit breakeroptional	Emax2-T4
`operating_mechanism_condition`	string	Condition assessment of the operating mechanism (e.g., Good, Needs Maintenance, Faulty)Good · Needs Maintenance · Faulty · Unknown	Good
`technician_name`	string	Name of the technician who performed the testoptional	Alex Kim
`remarks`	string	Additional notes or remarks about the test or breaker conditionoptional	No issues detected.
Numbers 6 columns
`contact_travel_time_ms`	float	Measured time for the contacts to travel during operation (milliseconds)0 or more	32.5
`opening_time_ms`	float	Time taken for the breaker to open (milliseconds)0 or more	70.2
`closing_time_ms`	float	Time taken for the breaker to close (milliseconds)0 or more	68.1
`contact_resistance_micro_ohm`	float	Measured contact resistance in micro-ohms0 or more	71.2
`sf6_gas_pressure_mpa`	float	SF6 gas pressure in MegaPascals at the time of test0 or more	0.39
`contact_wear_percent`	float	Percentage of contact wear measured during the test0 to 100	21.3
Dates and times 1 column
`test_date`	date	Date when the maintenance test was performed	2024-03-09

Use it for

An energy dashboard
Contact_wear_percent by operating_mechanism_condition and a breakdown of manufacturer. Excel, Power BI or Tableau.
Why do the 104 Faulty rows have a mean contact_wear_percent of 70.8?
A root-cause class exercise
Hand out the rows and one question. The answer is in the data, not in the brief.
Tests1,000
CBT1000121.3Good
CBT1000218.9Good
CBT1000331.1Needs Ma…
A software demo
Believable tests with breaker_id, location and manufacturer to fill a screen in front of a buyer.

This dataset1,000 rows15 columns

Yours1,000 rows15 columnslocation: UK only

blueprint · circuit-breaker-timing-and-contact-wear-analysis

Behind this dataset

Same schema. As many rows as you need.

These 1,000 rows came out of a blueprint — 15 columns with generation rules behind each one. Open it in Data Factory to retune a column, add your own, wire in foreign keys, and run it at the size you actually need.

Rules it was built with

Breaker ID, manufacturer (ABB, Siemens, GE, etc.), and rated voltage/current
Test date and operations count since last maintenance
Opening time (cycles at 60Hz, typically 2-5 cycles target)
Closing time and reclose time for reclosing breakers
Contact resistance per phase (micro-ohms, <100µΩ typical)
SF6 gas pressure (psig) and moisture content (ppm)
Operating mechanism: spring, hydraulic, pneumatic condition
Contact wear measurement and replacement threshold

Rows1,000 rows10,000 rows100,000 rows1,000,000 rows

Open the blueprint in Data Factory

1 credit per row. Preview 20 rows free. Buy rows for the full run.

Exports: CSV, JSON, JSONL, Parquet, SQL, Excel, TSV, XML
Licence: yours to use, including commercially
API slug: circuit-breaker-timing-and-contact-wear-analysis

What should your data show?

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Sample rows

What the 1,000 rows show

Columns

Use it for

An energy dashboard

A root-cause class exercise

A software demo

Make it yours.

Same schema. As many rows as you need.

More in Energy

What should your data show?