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Controllers - Power Supplies
Model KJD30Z Mine-used I.S. Industrial Control Computer
Model KJD31 Mine-used Frameproof and I.S. Computer
Model KJD5 Mine-used Intrinsic Safety Programmable Controller
Model KJD13 Mine-used I.S. Programmable Controller
Model KDW15A Flameproof and Intrinsic Safety Power Supply
Model KDW16A Flameproof and Intrinsic Safety UPS
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Model KDW16A Flameproof and I.S. UPS is DC stabilized power supply, and it is used for supplying power to mine-used intrinsic safety devices in environment with explosion danger of methane and coal dust. It also can output power supply status signal for monitoring system to monitor power supply condition.
Technical Parameters
Input: AC 127, 220, 380 or 660 V (selected by the corresponding connection terminal);
Frequency 50 Hz, voltage variation range 75%115%.
Output: Single-channel DC stabilized power supply of intrinsic safety type, with parameters detailed as follows (Rated output voltage shall be confirmed in ordering)
 

Rated
Voltage
(V)

Rated
Current
(A)		 Act Voltage of I.S. Output Overvoltage
Protection
(V)		 Act Current
of I.S.Output
Overcurrent
Protection
(A)		 Voltage
Regulation
Rate
(%)		 Current
Regulation
Rate
(%)		 Ripple
Voltage
(Vp-p)		 Maximum
External Load Capacitance
(F)
158% 1.0 16 1.05 1 10 2%Vo 47
188% 1.0 19 1.05 1 8 2%Vo 4.7
245% 0.5 25 0.525 1 5 2%Vo 2.2
Power Supply Status Output:
Passive output of CE pole of optical coupler. When it is off between output positive and negative poles, the status output is corresponding to battery supply; when it is on between output positive and negative, the status output is corresponding to AC power supply.
Explosionproof Type: Flameproof and Intrinsic Safety type with mark as "diI"
Backup Buttery:
a. Switchover Time: 0 s;
b. Buttery Capacity: 12 V 4.0 Ah, 2 butteries;
c. Power Feeding Time: when AC cutting off, the butteries supply power for at least 4 hours with rated current output;
d. Charging Mode: Floating charging after constant current charging
Protection: Cutting-off type double protection of over-voltage and over-current
Overall Dimensions: 332379158 (mm)
Weight: 32 kg
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  Tiandi (Changzhou) Automation Co., Ltd.
Changzhou Automation Research Institute of China Coal Research Institute
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