 Model Number |
KT-905D |
Classification
Surge Testers are classified according to output voltage and its function.
|
Output
voltage
|
Model
|
Descriptions
|
Dimension
W x H x D (mm)
|
N/W
(kg)
|
|
0.5 ~ 3KV
|
KT-903D
|
Auto/ Memory type/ Interface
|
420 x 190 x 540
|
15
|
|
KT-803A
|
Auto /Mass test/Interface
|
420 x 260 x 560
|
32
|
|
KT-803AL
|
Auto/ low inductance
|
|
KT-803M
|
Manual type (results on screen)
|
|
0.5 ~ 5KV
|
KT-905D
|
Auto/ Memory type/ Interface
|
420 x 190 x 540
|
15
|
|
KT-805A
|
Auto /Mass test/Interface
|
420 x 260 x 560
|
32
|
|
KT-805AL
|
Auto/ low inductance
|
|
KT-805M
|
Manual type (results on screen)
|
|
0.5 ~ 10KV
|
KT-9010D
|
Auto/ Memory type/ Interface
|
420 x 240 x 600
|
23
|
|
KT-8010A
|
Auto /Mass test/Interface
|
420 x 320 x 650
|
45
|
|
KT-8010AL
|
Auto/ low inductance
|
|
KT-8010M
|
Manual type (results on screen)
|
|
0.5 ~ 20KV
|
KT-9020D
|
Auto/ Memory type/ Interface
|
600 x 1400 x 750
|
90
|
|
KT-8020A
|
Auto decision type
|
600 x 1820 x 800
|
120
|
|
KT-8020M
|
Manual type (results on screen)
|
|
0.5 ~ 40 KV
|
KT-9040D
|
Auto/ Memory type/ Interface
|
See Note 1
|
Note 1
|
|
KT-8040M
|
Manual type (results on screen)
|
600 x 1820 x 800
|
(Note1) 1. Net weight, not mentioned, shall be reported ( it depends on option)
Comparison of Tester's model (suffix letter : M, A, D)
|
Suffix
letter
|
Test start
|
Process
|
Decision
|
Display of
test result
|
Sample
memory
|
Interface
|
|
Manual
|
Auto
|
Auto
|
Manual
|
Auto
|
Waveform
|
Others
|
|
M
|
o
|
-
|
o
|
o
|
-
|
CRT scope
|
-
|
-
|
-
|
|
A
|
o
|
-
|
o
|
o
|
o
|
CRT scope
|
Lamp, buzzer
|
-
|
o
|
|
D
|
o
|
o
|
o
|
o
|
o
|
LCD
|
LCD, buzzer
|
o
|
o
|
M: Manual type, A : Auto decision type, D: Digital/ Auto/ Sample memory/ Interface type
Sample memory : 60 kinds of sample data(waveform and its data) can be memorized for reference purpose.
Common specification
|
No
|
Items
|
Spec Value
|
Remarks
|
|
1
|
Operating power
|
AC 110/220 V ± 10 %
|
at 50/60Hz
|
|
2
|
Output voltage
|
0.5 ~ 5KV
|
Ex) KT-905D
|
|
3
|
Memory capacity
|
60 EA
|
for sample memory
|
|
4
|
Evaluation for test
|
Good/Bad
|
Lamp/Lamp+buzzer
|
|
5
|
Mode 1) Graphic mode
Mode 2) Text mode
|
1) Approx. 0.3 sec
2) Approx. 0.2 sec
|
Graphic or Text
|
|
6
|
LCD screen
|
5.7" mono
|
320 x 240 dots
|
|
7
|
A/Digital converter
|
8 bit word
|
at 20 MHz
|
Surge test items
|
Surge test items
|
Turn-to turn
|
Between near coils
|
|
Layer to layer
|
Between coils in up and down layer
|
|
Phase to phase
|
Between coils in up and down layer
|
|
Pin hole
|
Bad insulation of enameled wire.
|
|
Scratch in surface
|
Scratched surface of coil
|
|
Corona discharge
|
Arc/spark due to weak dielectric strength
|
|
Misconnection
|
Waveform
|
|
Quality of coil( Q )
|
Property compared with master (Std.) product.
|
|
Inductance of coil(L)
|
The quality of the tested product is evaluated by analyzing the peculiar free oscillation waveform originated after impressing of impulse voltage.
Products necessary for surge test.
| Motor, Transformer, Relay, Magnet, Solenoid, Neon transformer, D.Y coil, SMPS transformer, Choke coil, Noise filter, Degaussing coil, Igniter, All stabilizer, Reactors, Car electric parts, etc. |
All winding product during its use generates much higher impulse than real impressed operating voltage, as transient effect, and this impulse up to 10~40 times higher, which may cause to be broken by itself. |
Recommendable surge test voltage
- Es=[(Eo x 2) + 1000] x 1.4
- Es= Eo x 60
|
Es : surge test voltage
Eo : using voltage of product.
- ICWA's formula
( ICWA : International Coil Winding Association )
- KAST's formula
Applicable for low voltage products les than 30Volts
|
Benefits
| Convenient use and reliable test result. |
| Sample memory (Max 60 ea ) |
| Auto decision/ numeric presetting of reference range. |
| Interface type( RS 232C serial port ) with other computer and auto production line. |
| Adopting of "amplitude vs phase" |
| Supplied with calibration report (ISO 17025) |
| Strong design with high safety components.( Mainly 10 times more than reasonable capacity ) |
above benefits can be different according to tester models.
|
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