Pitot Relay  -New type-

1. Maintains the performance of the standard Pitot Relay that is durable against earthquakes.

2. Lighter weight

3. Various contact specification and flange type

 

Catalogue (PDF)

1. Maintains the performance of the standard Pitot Relay that is durable against earthquakes.

Just like the standard Pitot Relay, an earthquake-proof structure that prevents any malfunctions due to an earthquake or vibration of the transformer itself is adopted.

 

2. Lighter weight

It was successfully realized to decrease the weight by 45% from that of the traditional type. (24 kgs. of the traditional type  →13 kgs. of the new type) Attachment to and removal works from pipes can be carried out easier.

 

3. Various contact specification and flange type

It corresponds to a variety of contact specifications that could not be covered by the traditional Pitot Relay(available up to 2 contacts for gas accumulation and 3 contacts for rapid flow of insulation liquid). We manufacture Pitot Relays that comply with each customer’s requirements for such as round flanges, square flanges, screw hole positions, screw hole dimensions, etc. 

 

Type name PT-AC
Flange shape and size Round or Square (4 or 6 holes ), φ50 or φ75
Gas quantityat slight failure contact  425±25cm3
Oil flow at serious failure contact φ55 : 2.8~3.4 L/s ( 1.40 ±0.14 m/s )
φ75 : 3.6~4.4 L/s( 0.92 ±0.10 m/s )
Direction of Oil flow Right to Left or Left to Light
Contact capacity DC110V 0.5A, AC220V 0.5A
Withstand voltage AC 2000V for 1min.
Ambient Temperature -40 ℃ ~ +55 ℃
Temperature of the insulation liquid -40 ℃ ~ +115 ℃
Degree of protection (IP Code) IP54
Permissible inclined installation Maximum angle 5 degrees to piping direction