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Epoxy detective insulators are used in order to light up neon lamps by detecting voltage with built in porcelain capacitors .
Nowadays they are also used as voltage detective sensors installed in devices of smart grid systems. |
▲Detective insulators |
▲Cross section |
■Line ups
Cast with epoxy resin ,RISHO detective insulators are excellent in insulation reliability in spite of compact size.
Detective insulators as follows ,are available as ready-made products.
Customized products to meet each specification are also available.
| Product code |
EMK-6 |
EMK-10 |
EMK-10N |
EMK-20 |
EMK-20N |
EMK-30N |
| Test Items |
 |
 |
 |
 |
 |
 |
| Rated voltage |
kV |
7.2 |
12 |
15 |
24 |
24 |
36 |
| Power frequency withstand voltage(1min.) |
kV |
22 |
28 |
36 |
50 |
50 |
70 |
| Shock wave withstand voltage |
kV |
60 |
75 |
95 |
125 |
125 |
170 |
| Capacitance |
PF±10% |
250 |
250 |
125 |
125 |
125 |
83.3 |
Partial discharge voltage
(Detection sensitivity:10PC) |
kV |
7.2< |
12< |
15< |
24< |
24< |
36< |
Bending strength
(1 min.) |
N |
3920 |
3920 |
3920 |
3920 |
3920 |
3920 |
| Surface leakage distance |
mm |
130 |
190 |
230 |
310 |
340 |
560 |
| Installed height |
mm |
90 |
115 |
145 |
190 |
210 |
310 |
| Diameter (Maximum) |
mmφ |
75 |
75 |
80 |
90 |
90 |
100 |
| Mass |
kg |
0.6 |
0.9 |
1.2 |
1.7 |
1.8 |
3.5 |
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■Installation example in smart grid system |
■As voltage detective sensor of Zero Phase potential Device
RISHO detective insulators can be used as a sensor of zero phase voltage detectors by being connected to ZPD circuit, as follows.
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■As voltage detective sensor of auto section switch
RISHO detective insulators can be used as a sensor of voltage detection unit of auto section switch in smart grid system,as follows.
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