HONGFA UEW6DHG-2500 Switch Disconnector Instruction Manual

HONGFA UEW6DHG-2500 Switch Disconnector

Product Information

Specifications

• Product Model: UEW6DHG-2500 Switch-Disconnector
• Manufacturer: XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO., LTD.
• Catalogue: Available
• Requirement for the copper bar connected to the switch-disconnector: Refer to page 11 of the user manual

Receiving inspection:

• The storage environment should be dry, dust-free, and free from corrosive and explosive chemicals.
• Place the disconnector horizontally on any fixed parts, not directly on the ground.
• During storage and transport, the disconnector should be in a disconnected state and the spring mechanism in the energy release state.
• Take care to protect the disconnector and personnel during moving for installation; tipping, hitting, or dropping may lead to damage.

Normal Operating Condition and Installation Condition

• Ambient temperature: -40 ℃ to +70 ℃; the average value in 24h should not exceed +35 ℃. If the temperature exceeds 55 ℃, duration should be considered.
• If the altitude of the installation site exceeds 4000m, duration should be considered.
• Pollution level: Level 3
• The installation category of the main circuit is IV, and the installation category of other auxiliary circuits and control circuits is III.
• The switch-disconnector should be installed at a place without explosion hazards, conductive dust, sufficient corrosion of metal, and damage to the insulating plate.
• Storage condition: Ambient temperature is -40 ℃ to +80 ℃.

Product Structure and Operating Instructions

1. Interphase Barriers
2. Terminal Busbar
3. Terminals Block
4. OFF Button (O)
5. ON Button (I)
6. Charging Handle
7. Charged/Discharged Indicator
8. I/(O) Close/Open (O) Indicator
9. Counter Window
10. Side Panel

Energy Storage Operation

• Electric energy storage: When the disconnector releases energy, if the electric energy storage mechanism is energized, the energy storage motor will automatically store energy to the disconnector operating mechanism. The motor will stop automatically when the energy storage is finished, and a clicking sound can be heard. At this time, the panel energy storage/release indication is in the storage state.
• Manual energy storage: Similarly, the manual energy storage handle can be pressed to store energy. Press down for about 6 or 7 times, hear a click, and the reaction force of pressing down the handle decreases obviously. At this time, the energy storage/energy release indication on the panel is in the energy storage state, indicating that the energy storage is completed.

Closing Operation
Note: The disconnector can be closed only when the operating mechanism stores energy. If an undervoltage release is matched, the undervoltage release must be energized before closing.

Opening Operation
Under closing status, press the opening button on the panel or energize the shunt release to hear the bell sound. At this time, the I/O indication window on the panel indicates as O, meaning that the disconnector has been disconnected. At this time, the energy release of the disconnector operating mechanism is completed.

FAQ (Frequently Asked Questions)

1. What is the ambient temperature range for normal operation?
2. What should be considered if the altitude of the installation site exceeds 4000m?
3. What is the pollution level of the switch-disconnector?
4. What are the installation categories for the main circuit and auxiliary/control circuits?
5. Can the disconnector be closed without energy stored in the operating mechanism?

Precautions before use

Check the received goods and verify whether the model, specification and quantity of the UEW6DHG DC switch disconnector (hereinafter referred to as disconnector) are the same as the ordered goods. When opening the wooden packing box for inspection, avoid bruising the disconnector and damaging the package. It is recommended to keep the wooden packing box until installation and use. After inspecting the goods received, even if it will be installed and used in a short time, please still put the disconnector back into the package, taking care to protect it from water and moisture. If any damage or abnormality is found during the inspection, please contact us within 5 days after receiving the goods.

Storage and handling

• The storage environment shall be dry, dust-free, and free from corrosive and explosive chemicals.
• Please place the disconnector horizontally on any fixed parts, no directly on the ground.
• During storage and transport, the disconnector shall be in a disconnected state and the spring mechanism in the energy release state.
• During moving for installation, take care to protect the disconnector and personnel; Tipping, hitting or dropping may lead to damage to the disconnector.

Normal operating conditions and installation conditions

• The ambient temperature is – 40 ℃~+ 70 ℃, and the average value in 24h shall not exceed + 35 ℃. If the temperature exceeds 55 ℃, deration should be considered.
• Atmospheric conditions: at an ambient temperature of +40°C, the relative humidity of the atmosphere does not exceed 50%. At lower temperatures, a higher relative humidity is allowed, for example, at +20°C, the atmospheric relative humidity can be 90%. Dehumidification or appropriate measures should be taken for condensation due to temperature changes.
• If the altitude of the installation site exceeds 4000m, duration should be Considered.
• Pollution level: level 3
• The installation category of main circuit is IV, and the installation category of other auxiliary circuits and control circuits is III.
• The vertical inclination of this switch-disconnector shall not exceed 5 °.
• This switch-disconnector shall be installed at a place without explosion hazard, conductive dust, sufficient corrosion of metal and damage to the insulating plate.
• Storage condition: ambient temperature is -40℃~+80℃.

Product structure and operating instructions

1. Interphase Barriers
2. Terminal Busbar
3. Terminals Block
4. OFF Button（O）
5. ON Button（I）
6. Charging Handle
7. Charged\Discharged Indicator
8. Close（I）\Open (O) Indicator
9. Counter Window
10. Side Panel

1. Undervoltage Trip Device
2. Shunt Trip
3. Closing Coil
4. Auxiliary Contact

Energy storage operation

• Electric energy storage: When the disconnector releases energy, if the electric energy storage mechanism is energized, the energy storage motor will automatically store energy to the disconnector operating mechanism, and the motor will stop automatically when the energy storage is finished, and a clicking sound can be heard, at this time the panel “energy storage/release” indication is in the storage state.
• Manual energy storage: similarly, the manual energy storage handle can be pressed to store energy; Press down for about 6 or 7 times, hear a click, and the reaction force of pressing down the handle decreases obviously. At this time, the “energy storage/energy release” indication on the panel is in the energy storage state, indicating that the energy storage is completed.

Closing operation
In the case of energy storage, press the closing button or energize the closing electromagnetic iron, and you will hear the “bell” sound. At this time, the “I / O” indication window on the panel indicates as “I”, meaning that the disconnector has been closed. At the same time, the “energy storage/release” indication on the panel is in the energy release state. At this time, if the energy storage mechanism is still powered on, the energy storage mechanism will automatically store energy for the operating mechanism of the disconnector again. After energy storage, the motor will stop automatically, and the “energy storage/release” indication on the panel is in the energy storage state.

Note: the disconnector can be closed only when the operating mechanism stores energy;
If an Undervoltage release is matched, the undervoltage release must be energized before closing;

Opening operation
Under closing status, press the opening button on the panel or energize the shunt release to hear the “bell” sound. At this time, the “I / O” indication window on the panel indicates as “O”, meaning that the disconnector has been disconnected. At this time, the energy release of the disconnector operating mechanism is completed.

Note: the disconnector can be opened only when it is in a closing state.

Derating coefficient

Ambient temperature derating factor:

Altitude derating factor:

Interphase Barriers

Installation method: insert the upper and lower (middle) two pieces along the T-shaped slot of the body to the bottom, and insert the left and right pieces along the gap between the body and the side plate to the bottom and then insert them into the T-shaped slot of the left and right side plates .

Outline and Mounting Dimension

Electrical wiring diagram

Note:

1. The secondary terminal interface can connect the secondary line within 2.5 mm² and the tightening torque of the secondary terminal is 0. 3 N.m~0.4 N.m.
2. Above figure shows 4 changeover.
   • SB1: Shunt button (prepared by the user)
   • SB2: Closing button (prepared by the user)
   • X: Closing co il
   • F: Shunt trip
   • M: Charing motor
   • Q: Under-voltage / No-Voltage Trip Device

Requirement for the copper bar connected to the switch-disconnector

Note:

1. The overlapping interface between cabinet busbar and switch busbar shall not be less than 30mm.
2. The specifications in the table are for the circuit breaker which is installed in open condition meeting the heating conditions in IEC 60947-3, where the maximum ambient temperature is 40.

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