Articles about Circuit Breaker testing
General
| Article | Related product |
| Maintenance for MV & HV Power Circuit breakers Article demystifying the maintenance of medium to high voltage breakers. Read more... |
CBA-32P-24C |
| Maintenance Programs for MV & HV Power Circuit Breakers Article exposing a summarized description of a typical maintenance program's structure for medium to high voltage breakers, along with the advantages of following a good maintenance program. Read more... |
CBA-32P-24C |
| A Thorough Examination of Circuit Breaker Health Hydro-Québec TransÉnergie explores alternative diagnostic methods in its high-voltage circuit breaker maintenance program. Covered topics include dynamic contact-resistance measurement, arcing contact misalignment, vibration analysis and more. Read more... |
ZDRM-2, CBV-8, CBV-16, CBV-27 |
| Breaker Diagnosis Examples Four chapters of information describing electric networks and maintenance strategies, circuit breakers and potential problems, and solutions to detect these problems. Read more... |
CBA-32P-24C |
| AC/DC Voltage Test Using the general-purpose analog inputs (channels 3 and higher) on the ZENSOL CBA-32P, it is possible to measure AC voltages where the peak-to-peak amplitude is less than 10 volts. It is necessary to assemble a special circuit to obtain the desired results. Read more... |
CBA-32P-24C |
Timing Breaker Testing
| Article | Related product |
| Breaker Timing "It is a necessity to time each breaker, in order to have its functional signature. Incorrect operation can have disastrous consequences on the equipment or the substation personnel, out of service losses of revenue and the repair costs... " Read more... |
CBA-32P-24C |
Motion TESTING
| Article | Related product |
| Transducers Installation Examples Consists of numerous mounting examples of different rotary transducers on more then a dozen types of breakers including ABB, Areva, GE, etc... Read more... |
ZLB, ZMS, ZLR, ZLT, ZOT-2000 |
| The Displacement Curve "Whenever it is possible, a point-by-point measurement of the movement of the internal components of the circuit breaker, from the beginning of the movement until it comes to a complete stop, traces a curve called a DISPLACEMENT CURVE." Read more... |
ZLB, ZMS, ZLR, ZLT, ZOT-2000 |
Dynamic RESISTANCE Measurement Testing
| Article | Related product |
| Electrical Contacts in MV & HV Power Circuit Breakers In the present article you will find a summarized description of the different types of electrical contacts used in power circuit breakers, the major risks to their proper operation and the principal tests used to verify their condition. Read more... |
ZDRM-2 |
| Make/Break Contacts in Power Circuit Breakers "The interruption of electric power circuits has always been an essential function, especially in cases of overloads or short circuits when immediate interruption of the current flow becomes necessary as a protective measure. This means of interruption soon became inadequate and special devices called circuit breakers had to be developed". Read more... |
ZDRM-2 |
| A New Measurement Method of the Dynamic Contact Resistance of HV (pdf) The following paper presents a new dynamic-contact-resistance measurement method that has been validated by field tests which were performed on air-blast and SF6 gas circuit breakers. Read more... |
ZDRM-2 |
| A Complete Strategy for Dynamic Contact Resistance Measurements on on HV Circuit Breakers (pdf) The following paper proposes a complete strategy for conducting DRM on high-voltage CBs based on three relevant parameters: breaker contact speed (low or rated), injected current values (100–2800 A DC), and the presence of metallic fluorides deposited on breaker contacts. Read more... |
ZDRM-2 |
Vibration TESTING
| Article | Related product |
| Vibro-Acoustic Testing Applied on Tap Changers and Circuit Breakers (pdf) Article describing a method to detect problems on high voltage circuit breakers and tap changers using vibro-acoustic analysis. Read more... |
TAP-4, CBV-8, CBV-16, CBV-27 |
| Improved vibration analysis on circuit breakers (pdf) This paper deals with the successful application of vibration analysis for circuit-breaker (CB) diagnostic testing with the aim of detecting mechanical anomalies in CB drive mechanisms and other moving parts in the interrupting chamber. Read more... |
CBV-8, CBV-16, CBV-27 |
| Detecting mechanical problems using vibration measurements The vibro-acoustic diagnostic method is a very efficient way to track down mechanical problems in circuit breakers, such as very quick operations that generates high accelerations and decelerations that put the various operating mechanism components under very difficult stresses. Read more... |
CBV-8, CBV-16, CBV-27 |
