What is an El Cid test?
Stator core lamination integrity can be degraded through thermal and mechanical stresses. The Iris Power EL CID test detects shorted laminations and is the accepted world-wide solution for determining maintenance needs.
How ELCID test is performed?
Features. Iris Power EL CID Evolution instrument uses an excitation kit to operate the test at only 4% of normal operating flux. Any imperfections in the core inter-laminar insulation produce fault currents which are detected by a Chattock coil and analyzed by the Iris Power EL CID Evolution signal processing unit.
What is RSO test in generator?
RECURRENT SURGE OSCILLOGRAPH (RSO) RSO test technique is used to capture on dual channel oscilloscope, the reflected waves of the input rectangular pulse travelled in the field winding simultaneously at the two slip rings. It is a non destructive off line method to locate inter turn faults of windings.
Which following test is carried out on generator rotor?
Generator erectors usually apply dielectric tests on the armature (stator) and field windings before the rotor is put into the machine.
Which test is carried out for HT circuit breakers?
Thermal Test– Thermal tests are carried out to check the thermal behavior of the circuit breakers. Due to the streaming of rated current through its pole in a rated condition, the breaker under test undergoes steady-state temperature rises.
How many ohms should a generator rotor have?
With the probes of the tester, touch each copper slip ring and there should be a reading between 45 and 75 ohms. (This test should be performed with the generator not running and turned off. If the ohms reading is less than 45 it will mean that the rotor is failing and will need to be replaced).
How do you test windor rotors?
The AC impedance test is used to find indications of shorted rotor turns. The test is performed by means of applying an AC voltage across the field winding and raising it in 10-volt steps up to 100-120 volts, or till the current supply gets maxed out. We measure the current at each step.
What are the different methods of testing of circuit breakers?
- Type Tests of circuit breaker.
- Preventative Maintenance of Circuit Breaker, Inspection, and Testing.
- Circuit Breaker Trip Test.
- Insulation Resistance Test.
- Connection Tests.
- Contact Resistance Test.
- Overload Tripping Test.
- Instantaneous Magnetic Tripping.
What kind of flux test is El Cid?
Low Core Flux Test (EL-CID) The conventional method for testing for imperfections in the core insulation of motors and generators has been the rated flux test.
What is El Cid and what is its purpose?
Electromagnetic Core Imperfection Detection (EL CID) testing is accepted world-wide for reliable and safe detection of stator core inter-laminar insulation faults.
How does Iris power core testing ( El Cid ) work?
Core Testing (EL CID) Stator core lamination integrity can be degraded through thermal and mechanical stresses. The Iris Power EL CID test detects shorted laminations and is the accepted world-wide solution for determining maintenance needs. Iris Power EL CID Evolution
Is there an alternative to the El Cid evolution test?
The only alternative to the Iris Power EL CID Evolution test is the Ring Flux (full flux) test which requires large power supplies, considerable manpower, and expensive infrared viewing cameras. Safe for core and operator, unlike Ring Flux test which is potentially damaging to the uncooled core