Description
Product introduction:
Model: ZK series
Name: three-phase Voltage Regulator
Manufacturer: Shanghai Automation Instrumentation Co., Ltd.
Application: ZK series three-phase Voltage Regulator is used with current output instruments and SCR components, Can serve as a single-phase or three-phase voltage power adjustment,
Thus automatic control furnace temperature of resistance furnace (or induction furnace) , it has high regulation accuracy and strong anti-jamming capability, to adapt technological development and market needs, user use these improved products comfortably. The improved ZK series instruments with IC make the increase of Trigger pulse amplitude, width, conduction angle
Of instruments, improve the reliability of instrument, make application more widely.
Input signal: 0～10mA DC(Impedance : 800 or 1KΩ) 4～20mA DC（Impedance : 250Ω)
Pulse amplitude: ZK-1, ZK—0>3V(200Ω load)
ZK-3, ZK-3A, ZK-3B, ZK-03, ZK—03A, ZK-03B>4V(200Ω load)
ZK-3A, ZK-3B, ZK-03A, ZK—03B, ZK-30(60o complement pulse per half week)
Pulse width: ZK-1, ZK-3>30itS
ZK-0, ZK-3A, ZK-3B, ZK-03A, ZK-30B>200μs
Maximum conduction angle >150o
Zero-crossing triggering cycle：ZK-0, ZK-03：5±2S
ZK-03A, ZK-03B, ZK-30C: 7～10±2S
Supply voltage: 220V AC±10％
Working temperature: 0～50℃ ,relative humidity: ≤85％RH ,vibration-free and non-corrosive gases occasions.
Model specification
|
functions |
model specification |
Terminal diagram No. |
|
single-phase phase-shift trigger |
ZK-1, ZK-1C |
76-01～02 |
|
single-phase zero-crossing trigger |
ZK-O, ZK-0C |
76-03～04 |
|
three-phase phase-shift trigger |
ZK-3, ZK-3A, ZK-3B |
76-05 77-03～02 |
|
three-phase phase-crossing trigger |
ZK-03, ZK-03A, ZK-3B |
77-01 77-05～04 |
|
three-phase phase-crossing /phase-shift trigger |
ZK-30A, ZK-30B, ZK-30C |
78—01 |
Note:
ZK-3, ZK-03 is as a three-phase half-controlled, improved version is semi-control or full control
“C”is the installation type of instruments一wall
ZK-3A, ZK-3B, ZK-03A, ZK-03B are improved instruments and “A” is horizontal, “B” is straight.
Three-phase trigger ZK 3A(B), ZK-03A(B), ZK-30A(B), ZK-30C Extensible functionality：Soft start, over-current protection, soft start and overcurrent protection, inductive loads such as zero-crossing triggering.