TSJA Three Phase Oil-Immersed Variable Voltage Transformer

The TSJA series three-phase oil-immersed variable voltage transformers are designed for smooth, stepless voltage regulation with minimal distortion. They meet ISO9001, IEC, CE standards and are ideal for applications such as electrical equipment testing of motors, transformers, and other equipment with reliable adjustable power.

Main Features

Stepless voltage regulation: The secondary voltage is adjusted by changing the rotor position through mechanical transmission.

Reliability: It is designed for long-time stability, with least distortion in the output voltage and high overload resistance.

Rugged in construction: With rotor, worm gear heat-sink assembly, this transformer works effectively.

Wide applicability: It may be applied in industries such as steelmaking, electroplating, and motor testing.

Main technical parameter

Brand	ZHENGXI
Name	Oil-immersed induction voltage regulator
Frequency	50Hz/60Hz
Work Efficiency	>96%
Insulation Resistance	>20MQ
Suitable Temperature	-10℃~45℃
Load Current	226.5A 346.5A 412.5A 456A 577A 693A
Instantaneous Overload	<180%

Product model	Input voltage	Output voltage	Rated output current(A)	Dimensions(mm)
TSJA-30KVA	380V		46、42、35、27	128*176
TSJA-50KVA			76、69、58、44	128*176
TSJA-75KVA		0~380V、0~420V、0~500V、0~650V	114、103、87、67	128*176
TSJA-100KVA			152、138、116、89	105*166
TSJA-125KVA		0~420V、0~500V、0~650V	172、144、111	120*166
TSJA-140KVA		0~420V、0~500V、0~650V	192、162、124	120*166
TSJA-160KVA		0~380V、0~420V、0~500V、0~650V	243、220、185、142	120*166
TSJA-180KVA		0~650V	160	120*166
TSJA-200KVA		0~380V、0~420V、0~500V、0~650V	304、275、231、178	142*171
TSJA-225KVA		0~650V	200	127*171
TSJA-250KVA		0~420V、0~500V、0~650V	344、289、222	152*209
TSJA-280KVA		0~650V	249	142*171
TSJA-315KVA		0~380V、0~420V、0~500V、0~650V	479、433.364、280	152*209
TSJA-350KVA		0~650V	311	152*209
TSJA-400KVA		0~420V、0~500V、0~650V	550、462、355	152*209
TSJA-450KVA		0~650V	400	152*209
TSJA-500KVA		0~380V、0~500V、0~650V	759、577、444	152*215
TSJA-630KVA		0~650V	560	158*258
TSJA-630/6KVA		0~6300V	57.5	158*258
TSJA-630/10KVA		0~10500V	34.6	158*258
TSJA-800KVA		0~650V	711	173*258
TSJA-800/6KVA		0~6300V	73.3	215*275
TSJA-800/10KVA		0~10500V	44	215*275
TSJA-1000KVA		0~650V	888	172*258
TSJA-1000/6KVA		0~6300V	91.6	215*275
TSJA-1000/10KVA		0~10500V	55	215*275
TSJA-1250KVA		0~650V	1110	215*275
TSJA-1250/6KVA		0~6300V	115	215*275
TSJA-1250/10KVA		0~10500V	68.7	215*275
TSJA-1600KVA		0~650V	1421	215*275

Principle of Operation

The TSJA transformers work on the principle of a rotating magnetic field created by the rotor and stator. The shifting in the position of the rotor changes the phase angle and hence the output voltage. The transformer is designed to bear overload and heavy load applications.

Performance

Temperature range: +40°C to -25°C.
Safe operation: oil surface temperature rise ≤55℃; winding temperature rise ≤65℃, core temperature ≤60℃
Humidity: ≤85%
Altitude: ≤1000 meters

Operating Instructions

Wiring: The input and output terminal shall correctly connect according to single-phase or three-phase systems.
Pre-operation check: Insulation test and fix any loose screwing before using.
Grounding: Proper grounding for safety.
Voltage limit: Shall not be more than 105% of rated input voltage and current overload shall be avoided.

Advantages

Guarantee smooth and stable voltage for sensitive equipment.
Excellent overload and overcurrent resistance.
For a variety of industrial and test environments.