09
TNDZ
、
TNSZ series pillar type AC automatic voltage regulators
Symptons
Cause analysis
Troubleshooting method
The voltage regulator works properly,
but stops automatically sometimes.
Product overvoltage protection
(with a sound-light alarm)
Poor contact of product fuse
Poor contact of relay (K1 or K2)
Poor contact of connecting wires
Protection circuit board failure
Poor contact of control transformer
wiring
Check if the input voltage is too high
Check if the elasticity of fuse holder is
too loose
Replace the relay
Tighten all connecting wires
Replace the protection circuit board
Check the wiring of the control
transformer
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Ordering Instructions
Please specify the following items when placing an order:
10.1 Please specify the product model, capacity, rated output voltage, input voltage variation range, voltage regulation
accuracy, incoming and outgoing line position and load when you place an order.
10.2 Special requirements can be determined through consultation with the manufacturer.
10.3 Model selection guide
Choose a reasonable load when you install and use this product. Select a proper voltage regulator according to the rated
power, inductive or capacitive load of the electrical equipment. Its output capacity should be left with sufficient margin, which
should be larger for the impact load selection. See Table 4 for the specific safety factors in model selection.
Load
characteristics
Pure
resistant
load
Inductive,
capacitive load
Select the voltage
regulator capacity
≥1.3 times of the
total load power
≥2 times of the
total load power
Table 4
Safety factor
1.3~2
2~3
Device type
Incandescent lamp, resistance wire, electric furnace, etc.
Elevator, air conditioner, electric motor, compressor, computer
room, factory, office building, etc.
Safety factor selection principle reference: In the case of inductive or capacitive load environment, the starting current of
the load is large and will cause impact on the voltage regulator. In order to ensure reliable operation of the product, the safety
factor must be carefully selected in model selection. The safety factor should be chosen according to the load. In case of few
types of loads, large power, continuous long-term running or repeated short-term running (frequent start), and no additional
starting equipment, the larger value should be taken, otherwise the smaller value should be taken.
11
Environmental Protection
In order to protect the environment, the product or product parts should be disposed of according to the industrial waste
treatment process, or be sent to the recycling station for assortment, dismantling and recycling.
Figure 9 Electrical Schematic Diagram of TNDZ
Figure 10 Electrical Schematic Diagram of TNSZ-30-100
Figure 11 Electrical Schematic Diagram of TNSZ-150-320
Figure 12 Electrical Schematic Diagram of TNSZ-350-500
Figure 13 Electrical Schematic Diagram of TNSZ-600
Figure 14 Electrical Schematic Diagram of TNSZ-800~1000
12
Appendix 1 Electrical Schematic Diagrams (subject to change without prior notice)
