Type-name

GI-30AC type

SI-30AC type

ZI-30AC type

Application

For the station buildings with

steel tower, which are located

in the Nipponkai coast and have high probability of direct lightning strikes with extreamly high lightning energy especially in winter this type is the most suitable equipment and uses the lightning protector which has the biggest current capacity in the world corresponding to JIS.

For the station with steel tower,

where direct lightning strikes are predicted a lot of this standard type equipment have been installed actually. This type is the most suitable type for micro-wave relay station on the mountain top and for the measures to lightning strikes in summer.

For the protection of equipment installed in the downtown of the big cities, where the direct lightning strike is very seldom and the measures to the inductive lightning from low voltage distribution line are mainly necessary, this type is the most suitable equipment with excellent cost performance.

Rated in-and output voltage

according to customer’s designation

Number of phase

Single phase 2W, Single phase 3W, 3 phase 3W

Rated frequency

50or60（Hz)

Transformer capacity

according to customer’s designation

Protection level

less than 200(V)

Withstanding to impulse voltage

(between primary and secondary, between primary and grounding)

1.2/50μs 30kV

Withstanding to commercial voltage

(between primary and secondary, between primary and grounding)

AC10kV in 1 minute

Withstanding to impulse current

10/350μs 50kA

4/10μs 100kA

8/20μs 20kA

Circuit diagram

(Example ; Single phase side shows 2W)