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 Product introduction
The product is used for live line measurement of winding resistance temperature rise change,(dispense with power cut outage measurement), applicable to three-phase AC motor rated load and locked-rotor test. Temperature-rise test is the necessary parameter calculation of Motor stator winding thermal loss(copper loss) and efficiency. Used for testing The measured motor used in the insulation material, manufacturing process can meet the design requirements and meet the needs of the motor work properly.
The traditional winding Temperature-rise test method is in the motor or transformer to achieve stable state (at the rated load), cut off power supply, Use a bridge measuring winding DC resistance, then every certain short time repeated measurement of the winding resistance value, and calculated the resistance when cut off the power supply by extrapolation method, draw curves of winding resistance with the test of time.
The traditional test methods have many defects,short time shutdown of large power motor have risk larger and operation is troublesome. At the same time due to power outages delay time is too long lead to great error in the test data. In particular, in the temperature-rise test of transformer short-circuit or overload conditions, Because the winding temperature rise is very large(Even greater than 300 ℃), Power-off moment, temperature decreased in an exponential way, Therefore, using the traditional method of outages cannot measure accurately, The error is very large.
 Main characteristic
1.Use LCD or LED digital display, LCD screen or six window can be displayed respectively three-phase winding heat resistance, cold resistance, temperature, environment temperature, temperature rise test time and change curve drawing, can choose a set of winding or three-phase winding live testing temperature rise at the same time.
2.Adopt the advanced high anti-interference and weak signal optimization technology, guarantee the accuracy of the data.
3.Heat resistance, cold resistance range automatic switching, Wide linear range，good repeatability， stable performance.
4.Operators can query cold resistance at any time during the Winding charged operation, cold resistance can be saved of outages.
5.Bring the micro printer, can easily print and save the measurement data.
6.Can be set timing print time, printing the data in the process of temperature-rise.
7.The operating temperature range: 0 ~ 40 ℃, air relative humidity: 30% ~ 90%.
8.Suitable for 50/60 Hz AC motor test frequency test.
9.Equipped with serial RS232 interface, and the computer connection, Read and save the measurement data,In order to trace original data and statistical analysis quality .
10.Product USES the △/Y connection, suitable for all kinds of high/low pressure, Medium and small, three-phase AC asynchronous/synchronous motor and transformer, under the condition of charged run measure motor stator winding resistance and the temperature-rise test.(patent products , The first at home and abroad)
|
Model |
Measuring range |
Precision |
The applicative outgoing line |
Scope of application |
|
RDZ-5 |
20mΩ-2K |
±0.1% |
△/Y |
380V/5KW |
|
RDZ-50 |
20mΩ-2K |
±0.1% |
△/Y |
500V/50KW |
|
RDZ-200 |
20mΩ-2K |
±0.2% |
△/Y |
690V/200KW |
|
RDZ-500 |
20mΩ-2K |
±0.5% |
△/Y |
1140V/500KW |
|
RDZ-1000 |
1.999mΩ-2K |
±1% |
△ |
1140V/1000KW |
|
RDZ-2000 |
1.999mΩ-2K |
±2% |
△ |
1140V/2000KW |
|
RDZ-1000 |
1.999mΩ-2K |
±0.2% |
Y |
1140V/1000KW |
|
RDZ-2000 |
1.999mΩ-2K |
±0.2% |
Y |
1140V/2000KW |
|
RDZ-G-1000 |
1.999mΩ-2K |
±0.2% |
Y |
13.8KV/1000KW |
|
RDZ-G-2000 |
1.999mΩ-2K |
±0.2% |
Y |
13.8KV/2000KW |
|
RDZ-G-3000 |
1.999mΩ-2K |
±0.2% |
Y |
13.8KV/3000KW |
|
RDZ-G-5000 |
1.999mΩ-2K |
±0.2% |
Y |
13.8KV/5000KW | |
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