Type WSTZH2 Three Phase Off Load Tap Changer(star-delta delta connection)

Description

The de-energized three-phase linear series-parallel connection,star-delta exchange, with voltage-regulation combined tap-changers can meet the switching requirements of different voltages in the power and transmission.

Type WSTZH2 three phase-tap changer(star-delta delta connection)

– Used in mineral oil or silicon oil

– Rated voltage 10KV-35KV

– Rated current from 63A-250A

– Tapping position:3-5

– Regulation 2.5% per position

Model Explanation
WST □ – □/□-□╳□
W: off-circuit
S : three-phase or D for single phase
T : linear type tap changer
□: voltage regulation model
□: rated current
□: rated voltage
□: number of tapping heads
□: number of tapping position

Voltage Regulation Model
I : terminal point
II : central point
III : neutral point
IV : Y-△ conversion
V : series-parallel connection

Our Advantage

* High pressure capability
* Strong anti-aging ability
* Strong anti-lightning impact
* Strong protection
* Use smoothly
* Stable use

Number of positions	Rated voltage	Rated current	L	L1	L2	L4	L5	L6	H	H1	H2	Regulating position
3	10 kV	63A	478	188	145	99	24	34	180	78	70	Y-△Central
		125A	705	265	220	107	29	70	180	78	70
		250A	705	265	220	112	29	70	180	78	70
	36 kV	63A	705	265	220	103	29	70	210	98	80
		125A	705	265	220	107	34	70	210	98	80
		250A	705	265	220	112	34	70	210	98	80
5	10 kV	63A	622	236	193	99	24	34	180	78	70
		125A	705	265	220	107	29	70	180	78	70
		250A	705	265	220	112	29	70	180	78	70
	36 kV	63A	755	285	235	103	29	70	210	98	80
		125A	784	290	247	107	34	70	210	98	80
		250A	784	290	247	112	34	70	210	98	80