Japan, Shinagawa Sokki
Shinagawa Sokki BH/ BR Buchholtz Relay
Product Made in Japan
Manufacturer: Shinagawa Sokki Mfg. Co.,Ltd
Model: BH/ BR
Features
The relay is provide with the first contact (slight failure contact) that is operate by gas to be generate by a slight accident and the second contact (serious failure contact) that is operat by an oil flow to be generate by a sudden pressure rise.
Specification
| Type | BH | BR | |
| Specification of contact | Slight failure contact (ALARM) Gas quantity Number of contact | 225 ± 25cm3to325 ± 25cm3 1 to 3 contacts -)K1 | 450 ±50 cm3 1 contact |
| Serious failure contact (TRIP) Oil flow Number of contact | 1.0 ± 0.15m/sec -^2 1 to 3 contacts -)K1 | BR-50 : 2.8~3.42/sec BR-80 : 3.6~4.42/sec -)K2 1 contact | |
| Contact capacity | DC 250V 0.3A AC 250V 10A | DC 250V 0.25A AC 250V 5 A | |
| Kind of Switch | Micro switch | ||
| Insulation Resistance | DC 500V more than 100MQ (terminal to case) | ||
| Withstand voltage | AC 2000V 1 minutes (terminal to case) | ||
| Withstand pressure | 0.3 MPa | ||
| Screw Size of conduit outlet | G 3/4 | ||
| Angle of installation | Upward angle of 0 to 5 degrees toward conservator | ||
| Degrees of protection provided by enclosures | IP54 (IP Code / IEC 60529) | ||
Optional Extra
ⅰ） Gas Collector
It is a device gathering the resolution gas generated in transformer through a pipe from gas release valve of Buchholz relay.
ⅱ）Test pipe and Test pump
These are pipe attach inside the Buchholz relay and manual air pump for testing contact movement by blowing compresse air from the outside as it is install
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