Product Q&A - tecoie.teco.com.tw

What is the structure of TECO ATSH?

The structure of TECO ATSH: three sets of terminals
1. A set of normal power input terminals. (AL and AN)
2. A set of backup power input terminals. (BL and BN)
3. The other set is the output terminals of the load power. (L and N). Do not connect them incorrectly.
*Power window for ATSH:
Green: Indicates that the normal power (mains or solar power) is supplying
Red: Indicates that the backup power (generator power or mains) is supplying
*ATSH have DIP switch function for automatic/manual switching

What are the functions of automatic/manual DIP switch of TECO ATSH M1 type?

TECO ATSH model M1 automatic/manual switching DIP switch function description:
1. The DIP switch is set at automatic:
If both power sources exist at the same time, it is mandatory to use the normal power source (mains power or solar power) to supply power.
2. The DIP switch is set at manual:
If both power sources exist at the same time, it is mandatory to use the backup power source (generator or mains power) to supply power.
At this time, the DIP switch must be pulled back to the automatic position to return to the normal power supply (mains power or solar power) state.

The features of TECO ATSH?

1. This product is magnetic contactor type (MC) A.T.S. with mechanical and electrical interlock function.
2. Single coil design, when the power is supplied normally, the MC switch does not act to avoid energy consumption.
3. The mechanical window display is linked with the MC switch, which displays the power supply source without misjudgment

Operation precautions of TECO ATSH

1. Before operation, please confirm whether the input voltage meets the demand.
2. The common power side and the standby power side should not be reversely connected
3. The output capacity is specified, please do not increase equipment capacity.

What are the most common failures of TECO ATSH?

1. The wrong input power is connected.
AC110V is required but using AC220V, which causes the internal contactor coil burnt out.
2. Order the wrong model.
Customers need AC220V products but ordered AC110V products, which makes it unable to operate.
3. The terminals of the normal power side and the backup power side are reversely connected.
4. If the ATSH-2020M1 product is overloaded and used for a load of more than 30A, the internal contactor contacts will be burnt.
5. The internal relay (Ruiyi Motor LB2 series POWER RELAY) is burnt out.

Where can I find the TECO ATSH introduction and dynamic function test video?

Use computer or cell phone
1. Access to YouTube app
2. Search for TECO ATS
3. View TECO ATSH product introduction and dynamic function test video

The operating environment of TECO ATSH

1. Ambient temperature: -20℃~+55℃
2. Altitude: below 2000m
3. Relative humidity: within the range of 45~80%
4. In an environment without excessive water vapor, oil vapor, smoke, dust, salt, corrosive substances

Why cant TMM display voltage? (Example: three-phase three-wire)

European terminal block Terminals 2-4 may not be short-circuited, which may be caused by 3-phase 3-wire voltage offset. Reset A-1 (three phase, three wire setting), A-2 (if PT is available, set primary side voltage), A-3 (if PT is available, set secondary side voltage) and A-4 (set primary side current transformer) according to utilization conditions. Change H-1 page 2 setting as display line voltage status.

Why are the power and power factor values of TMM displayed as negative values?

It may be caused by the wrong phase sequence, or the opposite direction of k and l of CT.

Why does the TMM-20 display abnormal when measuring the S-phase current value when the place has a frequency inverter?

Due to the special current waveform of the inverter, if 2CT is connected, the "calculation current" of the S phase will be incorrect, resulting in a high I-avg value.
If the inverter is wired (the S-phase current is the current synthesized by the CT), the S-phase current is the measured current value, and the I-avg value will also be normal. (or connect to 3CT as well)

How to measure the internal resistance of S0-S1, S0-S2, S1-S2 of new T-WG series products?

1.Use the ohm of the multimeter to measure the S0-S1, S0-S2, S1-S2 terminals of the level controller to obtain the internal resistance value.
2. The internal resistance of S0-S1, S0-S2, S1-S2 of new T-WG series is about S0-S1: 485Ω S0-S2: 801Ω S1-S2: 530Ω
3. If the measured internal resistance value is ∞Ω and the indicators do not display and operation; it may be caused by sending 220V voltage to 110V contacts by customer that result in the internal transformer to burn out.
Internal part (transformer) should be replaced with charge.

What is the operating principle of the water supply of the TWG level controller?

Supply (pumping, clear water)
1. Single pool supply control – commonly used with well operation principle.
Pool water level – pump with low level and stopped with high level
Applicable model: T-WG,T-WG2R,T-WG3
2. Dual pool pumping (supply control) – such as lower pool (supply source) and upper pool (reservoir) of general building
Operation: pool water level - pump with low level and stopped with high level
Applicable model:T-WG1R,T-WG4

What is the operating principle of the water drainage of the TWG level controller?

Drainage (sewage, waste water)
* sewage, waste water (drainage) control
For example to sewage or waste water control of general building
* operation principle:
Pool water level – pump with high level and stopped with low level
* Applicable model:
T-WG,T-WG1R,T-WG2R,
T-WG2AR,T-WG3

What is the principle of TWG level controller and motor controller?

1. Single motor operation
Often used in places where the motor does not operate for a long time or operate less
2. Alternate operation of dual motors
Commonly used in pumping or sewage control places.
3. Dual motors run alternately in parallel
It is often used in waste water control, where the water level is too high and the drainage needs to be operate in parallel.

How to select TWG level controller?

Questions to consider before placing your orders:
1. Water supply (pumping, clean water) or drainage (sewage, waste water)?
2. Single pool or double pool (upper/lower pool)?
3. Is it the alternate operation of dual motors?
4. Does the drainage need to run in parallel?
5. Is the control voltage specification 110V or 220V? (The main power supply voltage is irrelevant)

What is the difference between the application environments of TWG float switch & electrode rod?

Electrode bar: metal material, not suitable for acid and alkali environment. Generally, it is recommended to use electrode bar for clean water.
Float switch: If it is not controlled by an electrode bar, a float switch can also be used; the float switch is only resistant to weak acid and alkali environments. It is recommended to use a float switch for sewage and waste water.
ps: The float switch can also be used with electrode bar.
example: T-WG4 product:
A water-retaining float can be installed between the electrode bar E2 and the electrode bar E1 of the ultra-high water level. It can prevent the water level from exceeding the over pipe.

How to eliminate the ticking sound when T-WG3/4 is automatically switched?

The T-WG4 running light will flash because the DIP switch 3,4 overtime protection setting: it was touched, not an error.
Overtime protection function: The factory setting is no overtime protection, and the DIP switches 3, 4 are set as OFF, the operation indicator will not flash.
If the DIP switches 3 and 4 are set to 30 minutes/60 minutes/90 minutes overtime protection:
If the motor stops after the set time, the motor operation indicator of the controller will flash, and the AL has an alarm output.
ps: Please refer to the instruction manual on the right

How to eliminate the ticking sound when T-WG3/4 is automatically switched?

1. The automatic operation light of T-WG3/WG4 products is on and there is a ticking sound.
This tick is an abnormal (AL) relay in operation, such as an ultra-low signal in the pool.
2. When testing: T-WG4 product---- need to short circuit E8, E7 and E8, E3.
T-WG3 product---- need to short circuit E5 and E4, there will be no ticking sound.

What is the structure of the diesel engine generator?

The diesel engine generator is composed of controller, generator, engine, radiator, silencer and fuel tank. It is equipped with parallel transfer unit, acoustic enclosure, smoke purifier, etc.

What is the recommended operating environment for diesel engine generator set?

The diesel engine generator can operate normally in ranging from 0ﾟC~50ﾟC, 1000 meters above sea level, and 0~95% relative humidity.

What are the inspection criteria for diesel engine generators?

Mainly in accordance with CNS2901(C4080), CNS10204(Z3023) and CNS11445-4(C1137-4) inspection requirements.

Is the diesel engine generator powered by alternating current or direct current?

Diesel generators mainly supply alternating current, because the voltage of direct current generators is not easy to increase or decrease, and if the line is to maintain a low voltage value according to the load specification, the current must be heavy. That is uneconomical and impracticable, so direct current generators are far less commonly used than alternators.

What is the function of the controller on the diesel engine generator?

Controllers are used to operate various functions of the generator set and to display the status of the generator (including voltage, fuel level and frequency) and failure information, providing monitoring and protection functions.

What is the rating type of diesel engine generator?

There are standby power (1 hour continuous operation), prime power (8 hours continuous operation), and continuous power (stop during maintenance of sustainable operation).

What are the types of diesel engine generator sets?

Depending on the demand, there are the following types: 1. Open type (water tank fan) 2. Water tank separation type 3. Heat exchange type 4. Soundproof type, 5. Outdoor type (rainproof), 6. Outdoor type (soundproof) 7. Trailer type 8. Container type.

What are the precautions for the construction of the generator room?

1. The controller surface shall be at least 1 meter from the wall for operating space.
2. Over 0.6 meters of maintenance space is required on the left and right sides of the set.
3. A class fire doors (generator equipment, no entry signs should be displayed) shall be installed in accordance with the fire prevention plan.
4. The exhaust pipe should be configured on the premise that the exhaust flow is smooth (Do not use T-joint to avoid flow conflicts).

What are the precautions for installing diesel engine generator fuel tank?

1. Danger warning signs should be displayed. If the capacity exceeds1000 L, review according to the relevant laws and regulations on dangerous goods.
2. The fuel tank shall be equipped with oil trap with a capacity of more than1.1 times that of the tank. It also contains residual oil sump, standard size 20(W)*20(H)*10(L)cm.
3. The pipe diameter of the fuel tank shall be extended to a height of more than 4m from the floor outside the house.

What are the necessary inspection items before the diesel engine generator testing run?

The following items must be checked for compliance with the specification. 1. Engine water level 2. Battery and charger charging condition 3. Engine oil level 4. Diesel fuel tank level 5. Fan belt 6. Generator room ventilation

What are the normal phase values when test run a diesel engine generator?

AC voltage, AC current, frequency, cooling water temperature, oil pressure, DC voltage, engine speed, etc.

What are the possible reasons why the diesel engine generator fails to start?

Possible causes include: 1. Low battery 2. Air in system 3. Fuel valve inoperative 4. Fuse disconnected 5. Fault not troubleshooting 6. Starter motor (SM) failure 7. Poor diesel fuel . Please contact TECO personnel at your service.

What products are used to compose magnetic switch?

Magnetic switch consists of magnetic contactor and thermal overload relay.

What does AC3.1.1-0 mark on magnetic contactor mean?

AC3.1.1-0 on magnetic contactor means 5 million times of mechanical durability and 1 million times of electrical durability.

What protection is provided by thermal overload relay with automatic temperature compensation function?

Thermal overload relay with automatic temperature compensation function provides overload and phase failure protection.

What principle does the magnetic contactor use to achieve the contact closing function?

The magnetic contactors use the principle of electromagnetic attraction to achieve the contact closing function.

What is the function of TECO contactor specific designed for air conditioner?

TECO magnetic contactor specifically designed for air conditioner allows higher voltage drop during compressor startup.

What is the function of TECO reversing contactor with mechanical interlock?

TECO reversing magnetic contactors with mechanical interlock prevents short circuit accidents due to normal and reverse false actions.

What is the difference between thermal overload relay and electronic over current relay?

a. Traditional thermal overload relay (TOR): TOR is tripped by heating a bimetallic strip, so the immediate protection function cannot be achieved in the protection of overcurrent and phase failure.
b.Electronic over current relay (EOCR): Use overcurrent protection to read the actual running current of the motor. When there is overcurrent, phase failure, phase reversal, phase imbalance, etc., it will be tripped within 0.15 ~ 10 seconds according to internal setting (depends on model selected).

What are the ourtstanding features of EOCR (electronic over current relay)?

It has multiple protection functions such as overcurrent protection, low current protection, phase failure protection, lock rotor protection, current unbalance protection, motor rotor lock protection, and stall protection.

What is the applicable range of EOCR (electronic over current relay)?

It can be applied to
a. switchboards in large and small factories,
b. motor switchboards on ships,
c. power control switches for various types of automated machinery,
d. power switches for high-power motors, air conditioning systems, and high-power devices,
e. machine tool power switch of elevators, lifts, winch and conveyor belt
f. branch switchboard for all types of generators, substations, power plants,
g light industry, metallurgy, coal mines, machinery, cranes, railways

Waht are the manual quick restoration and electrical restoration functions of EOCR?

Manual quick restoration and electrical restoration functions of EOCR: Both manual and remote control restoration are available.
Manual restoration: press RESET button.
Electrical restoration: Turn control power of EOCR OFF for 1 second then switch it ON for automatic restoration
Auto restoration: 0.5Sec~20Min (only 3DM2/FDM2/i3DM/iFDM/i3M430/iFM420)

What is the advantage of LED indicator of EOCR?

The thoughtfully designed LED indicator of the EOCR electronic over current relay allows you to easily understand the cause of the trip. When a fault occurs, EOCR can not only achieve the function of protection, but also provide fault display, which is convenient for maintenance personnel to troubleshoot immediately, reduce maintenance costs and avoid the loss of production downtime.

What are the rated sensitivity currents of TLB-50R series?

The rated sensitivity current of TLB-50R series is 15mA; 30mA; 100mA; 300mA; 500mA, which can be specified individually.

What are the applicable standards for TLB-50R series?

The TLB-50R series complies with CNS 5422 which is domestic standards and is different from IEC.

What is the convenience of locking wire of the load terminal and the neutral terminal of the TLB-50R series 1P model?

The wiring of the load terminal and the neutral terminal of the TLB-50R series 1P can be locked from front which is better than other brand.

What is the applicable range of TLB-50ER/50R/50SR miniaturized earth leakage circuit breaker?

a. Apply to dual purpose circuit protection for 60Hz frequency, AC 110V - 220V and current operated earth leakage circuit breaker with rated current below 50A.
b. It is suitable for indoor wiring circuits in humid places and equipment in outdoor distribution boxes.

How many seconds can TLB-50ER/50R/50SR miniaturized earth leakage circuit breaker cut off power supply to achieve the best leakage protection purpose?

When leakage occurs, the switch can quickly cut off the power supply within 0.1 seconds to achieve the best leakage protection purpose.

What are the advantages of electronic substrate of TLB-50ER/50R/50SR miniaturized earth leakage circuit breaker?

The electronic substrate of TLB-50ER/50R/50SR miniaturized earth leakage circuit breaker has excellent anti-surge and anti-noise interference capability.

What is the features of TLB-50ER/50R/50SR miniaturized earth leakage circuit breaker?

The product is certified by CNS 5422 and RoHS national standards, and is safe and secure. Small size, saving the power distribution installation space of the standard clip-in chassis distribution box.

What are the applicable standards for TECO CT/PT/TR series products?

The application standards for CT series is IEC 60044-1, PT series complies with CNS11437 and IEC 60044-2 and TR series follows IEC-60076-11.

What is the classification of CT (current transformer) according to the difference in accuracy?

According to the difference in accuracy, CTs are classified into four categories a: for calibration, for metering, for measuring and for protection. What TECO provided are measuring and protection CTs.

What does it mean when CT accuracy is 10P20?

CT accuracy 10P20 means that when the current flowing through the CT is within 20 times of its rated current, the accuracy is within ±10%.

If the maximum current of CT (current transformer) wiring is 50A, what is the solution for electric meter failed due to excessive turns ratio of 180A/5A -1?

The solution is to increase the number of turns passing through the CT opening to reduce the ratio.

What is advantage of H grade plastic injection fireproof transformer?

H class plastic injection fireproof transformer is fully sealed by injecting epoxy resin as filling material under vacuum condition then treated by drying. High magnetic permeability silicon steel plate and high conductivity wire are used for heat removal to obtain the advantages of miniaturization and low load.

What types of PT are sold by TECO?

PT can be classified into dry PT and molded PT

What are the characteristics of the solar DC product TDB-250N?

TDB-250N DC circuit breaker with 2 poles can reach DC1000V rated working voltage DC1000V, rated current from 63A to 250A
It is used for solar power generation system. When the system is under abnormal grounding short circuit, it has grounding breaking capability and overload and short circuit protection to protect transmission line and power equipment from damage.

What are the characteristics of the solar DC product TDS-250N ?

TDS-250N solar DC disconnect switch with 2 poles can reach DC1000V rated working voltage and rated current is 250A. It is suitable for solar power generation system and has inverter isolation function.

What are the characteristics of the solar DC product TDS-32 ?

TDS-32 solar DC disconnect switch (rotation type) has 2/4/6/8 poles and be used on 1/2/3/4 set circuits respectively. Its rated working voltage is DC1000V and rated current is 16 to 32A. Uses permanent-magnet blowout technology and is suitable for circuit isolation of solar power generation system.

What are the characteristics of the solar DC product TSP-40/3D12 ?

TSP-40/3D12 DC solar DC surge protector is a 3-pole pluggable module, which is easy to install and maintain with DC1200V rated working voltage and maximum discharge current is up to 40kA
It is suitable for lightning protection at DC side of solar power generation system.

What are the characteristics of the solar DC product TFU ?

What are the characteristics of the solar DC product TFU ?

How many protection functions does TAB series air circuit breaker have?

The controller action curve of all TAB series models is the same, and there are four protection functions --
Ir1 overload long time protection
Ir2 short circuit short time protection
Ir3 short circuit instantaneous protection.
Ir4 single phase grounding protection

Why cant the controller of TAB series air circuit breaker display?

1. Check whether the controller equipped with a control power and whether the voltage is correct. (For the correct voltage, please refer to the order list and the voltage marking ring on the power cord of the controller),
2. When the rated current is greater than or equal to 400A, the primary current is not less than 0.4ln for single phase, and is not less than 0.2ln for three-phase, the tripping relay can work normally.
3. It is recommended to provide controller a stable power.

Why cant the TAB series air circuit breaker be put into operation?

1. Controller reset button is not restored.
2. If "low voltage trip device" is installed, power should be supplied in advance.
3. Whether mechanical interlock is installed.
4. If the position of the main body is shaken to the connection and positioning lever has a clicking sound.
5. Energy storage motor cannot store energy, please check power.
6. Closing electromagnet damaged or low voltage.

Why cant TECO ACB store energy after being powered on?

1. Energy storage motor control voltage should less than or equal to 85% of working voltage.
2. Check and measure the resistance value of the energy storage motor, the value must not be zero or infinite
3. Check energy storage mechanism for errors.

If I want to know more about the product, where can I find more details?

Please contact our branch offices:
Taipei (02) 2655-3333#2517,
Hsinchu (03)598-1711#184,
Taichung (04) 2317-3915,
Tainan (06)2697799,
Kaohsiung (07)5665259,
Welcome to inquire at any time, we will serve you wholeheartedly