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JW SERIES

Three Phase Thyristor Regulator

JW Series is compact lightweight three-phase control thyristor regulators enabling high-densit y instrumentation. The methods of control are divided into two ways, the phase control and zero-cross control. In the phase control systems, a type with the voltage, current and power feedback control types and a type without those feedbacks are available according to the characteristics of a heater used. JW Series are also capable of advanced three-phase control based on 6-arm control and fine control setting from the setting communication unit. Furthermore, remote control and data monitoring is available by connecting to a host unit. Disconnection alarm and current limit are included as a standard FEATURES Heater disconnection alarm function and power current control function. Various protective functions Compact all-in-one configuration Controllability is improved with 6-arm control Setting communication unit is included Thyristor elements are protected by gating off for over-current, melting of the rapid fuse for short-circuit and gating off for radiation fin over-heating. Phase-sequence abnormalities alarm and open-phase alarm, which are suitable for three phase control are included. Flat and slim structure, high-density instrumentation is available. As they are using the same pitch of JT Series a replacement from an old version is easy. Imbalanced alarm function equipped as standard Displaying measured values of real time power voltage, current, electric power and also settings of each parameter, switching operation are available. Each parameter enables fine control. Units including communication enable to set data monitor and each parameter via PC upper communication, RS-422 or RS-485. 6-arm control functions especially for transformer loading and the controllability was highly improved. 6-arm control is the best for improving controllability, unbalanced alarm function, reducing harmonic noise. MODELS The imbalance adjustment function used to adjust the imbalanced status is included. Balance control of three phase’s outputs value is also available. Imbalance alarm judges the imbalance ratio of the current.

JW Power voltage

20:200V AC (200V/220V/240V) 40:400V AC (380V/400V/440V) 99: Others

Rated Current

010: 10A 200: 200A 020: 20A 250: 250A 030: 30A 300: 300A 050: 50A 400: 400A 075: 75A 500: 500A 100: 100A 750: 750A 150: 150A X00: 1000A

Control system V:

Phase-angle firing. voltage feedback/ Zero-cross firing

A:

Phase-angle firing. current feedback/ Zero-cross firing

W:

Phase-angle firing. power feedback/ Zero-cross firing

N:

Phase-angle firing. no feedback/ Zero-cross firing

Z:

Zero-cross firing

Rapid fuse *1

N: Not provided A: Provided

Setting communication unit *2 0:

Not provided

1:

Provided (Installed to unit)

2:

Provided (Panel installation)

3:

Provided (Installed to unit including communication)

4:

Provided (Panel installation including communication)

CT( current transformer) function *3

0: Mounted externally( or none) 1: Built-in

Arms

3: 3 arms 6: 6 arms
*1 In case the rated current with rapid fuse is 010 or 020, “A” cannot be chosen *2 For setting communication unit of panel installation, exclusive cable “SH-JUK3” of 3m or “SH-JUK5” of 5m are necessary. *3 In case current rate with CT function is more than 100A “1” cannot be chosen. When installing CT externally please select 0.

1

PSE-351