IEC 60898-1 Circuit Breaker Tripping Characteristics Temperature
Rise Test Machine
Product overview:
The test equipment is designed and manufactured according to the
standard requirements of
IEC60898-1 clause 9.8, 9.9 and 9.10, IEC 60947-1 clause 7.2.1 and
etc.
It is made to verify that the circuit-breaker complies with the
requirements, which apply 1.13 times, 1.45 times, and 2.55 times
the rated current to test to see if it trips within the specified
time. The test equipment can also test the instantaneous tripping
characteristics of the circuit breaker, that is, apply 3 to 20
times the rated current for the test whether it jumps out of the
time. Also meets standard 28-day test and temperature-rise test
requirements.
It is suitable for online testing of molded case circuit breakers
and miniature circuit breakers before leaving the factory. It is a
necessary equipment for electrical performance testing of circuit
breaker manufacturers.
Technical parameters:
| Project specifications | Parameter content |
| Applied standard | IEC 60898-1 |
| Clause | 9.8, 9.9, 9.10 |
| Control method | 18.5-inch touch-screen computer operation |
| Program language | English |
| Test items | 1. Delay test of miniature circuit breaker 1.13+1.45In; 2.55In 2. Instantaneous test of miniature circuit breaker 3-20In 3. Temperature rise test of miniature circuit breaker 4. 28-day test of miniature circuit breaker |
| Test station | 1 station |
| Input power | AC380V 50Hz 40kVA |
| Delay trip parameters |
| Output AC current | 1~320A |
| Output AC voltage | 1-5V |
| Output current channel | 1-channel, multi-P circuit breaker contacts are connected in series
to test several switches at the same time (max. 3 pcs.) |
| Test miniature circuit breaker products | 2.5~125A |
| Current output waveform | Sine wave (correction equipment current waveform distortion is not
more than 5%, system error is not more than 3%) |
| Current control method | Automatic adjustment, the current is set on the touch screen |
| Current accuracy | Level 0.5 |
| Voltage accuracy | Level 0.5 |
| Transformer ratio | 400/5A |
| Test time | 1~999999s |
| Current | After 1.13 times of current is applied, it quickly and
automatically rises to 1.45 times of current in 5 seconds |
| Fixture | Adopt the terminal method, delayed: one station, instantaneous: one
station. |
| Instantaneous trip test |
| Fixture | Adopt the terminal method, delayed: three stations, instantaneous:
one station. |
| Output current | AC3A～2500A |
| Instantaneous tripping currents | 3-20 In |
| Output voltage | 1-5V |
| Output current channels | 1 channel |
| Current accuracy | 0.5 level |
| Resolution | 1A |
| Instantaneous test time | ≤0.2s |
| Action time upper limit setting | 1~200ms |
| Action time lower limit setting | 1~200ms |
| Test station | 1 station |
| Timing time | 1~9999ms |
| Protective function: | Short circuit protection, overload protection, leakage protection |
| Temperature rise test | Under normal working conditions, when the circuit breaker is tested
according to the specified conditions. The circuit breaker should
not be damaged to affect its function or safety of use. |
| Temperature measurement channel | 16 channels, temperature resolution: 0.1 degrees, (1 channels
measure the ambient temperature inside the chamber) |
| Thermocouple | T type or K type |
| Temperature curve | Computer display with temperature data logging table |
| Temperature measurement range | 0~200 degrees |
| 28-day test | |
| Test program | The sample is supplied with AC 30V and rated current, the power-on
time is 21 hours, the power-off time is 3 hours, and the cycle is
28 times. The terminal temperature is measured during the last
power-on cycle, and compared with the initial measured temperature,
the temperature rise value is compared with the standard
requirements. After the temperature rise measurement, the current
rises to the tripping current value in 5 seconds, and the circuit
breaker should trip within the given/preset time. |
| Output voltage | More than AC 30V |
| Output AC current | AC 3-125A |
| Power on time | Power-on time 0-99h, can be preset |
| Power off time | 0-99h can be preset |
| Number of cycles | 0-9999 times can be preset |
| Tripping time | recordable |
| Tripping current | 3~200A |
| Evaluation of results | 1. Whether the circuit breaker tripped during the test or not. If
it tripped, it failed; if it did not trip, it passed. 2. Temperature rise comparison, if it exceeds the standard value by
15K, it is defective; if it does not exceed the standard value, it
is acceptable. 3. After the current rises to the tripping current, if it trips
within the given/preset time, it is acceptable; if it exceeds the
given/preset time or does not trip, it is defective. |
| Configuration | |
| Connecting cable | Wires for temperature rise test: 1, 1.5, 2, 2.5, 4, 6 and 10, each
specification has a length of 1 meter, and match 5 PCS for each
specification; 16, 25, 35, and 50, each specification has a length
of 2 meter, and match 5 PCS for each specification |
| Thermocouple | Type K, 16pcs, 2m length each pcs |
| Temperature control in chambers | 1 pcs, for heating the chamber to (RT+5~50°C) heating the chamber to (RT+5~50°C) 1 heating elements in each chamber. Control system for setting and maintaining temperature for each
chamber. 1 regulators are installed on the control panel. |
| Hardware | Computer display greater than 18.5 in, with WIFI |
| Threading hole | Each workstation is equipped with threading holes for easy
connection with instruments outside the box |
| Software | Editable program segments, capable of forming curves, generating
reports, and printable |
Equipment characteristics:
The equipment chamber is welded with high-quality steel, the plate
is coated and sealed, and the surface is anti-static, anti-rust,
and anti-corrosion coated. The upper part of the equipment is
equipped with a panel, a power switch, and a variety of wire ends
(for delay tripping test). The equipment is reasonably designed and
used with the advantages of convenience, simple operation, reliable
performance and beautiful appearance.
According to the delayed tripping of standard IEC60898-1 clause
9.10.2.1 or 9.10.2.2, the chambers in SN2501C can be tested
independently at the same time. According to the instantaneous test
of IEC60898-1 clause 9.10.3.2-9.10.3.4, it can only be tested in
different time.
| Test type | Combination 1 | Combination 2 | Combination 3 | Combination 3 |
| Delay tripping test | √ | | | |
| Instantaneous tripping test | | √ | | |
| Temperature rise | | | √ | √ |
| 28-day test procedure | | | | √ |
Chamber is equipped with a heating device, with a temperature
control range of RT+5~50°C, so that the model samples in the
chamber can be used at normal ambient temperatures, and includes a
three-way ambient temperature monitoring function.
The software must allow the execution of any test program to be
terminated at any time without having to wait for the standard
procedure to complete, retaining the results obtained at the time
of termination.
Test principle:
This test equipment adopts the principle of low voltage and high
current output, uses the large current in the machine to isolate
the output current of the transformer, sets the current size
through the touch screen, and the constant current source adjusts
the size of the output current of the transformer, which has the
function of automatically stabilizing the current. It has an option
of setting the test time using the touch screen and comparing the
test trip time to evaluate the quality of the circuit breaker.
