Hello everyone. Franciscan Ninghao Bo long-term focus on ZLDB-5T microcomputer intelligent low-voltage feeder protection devices. The company advocates "professional. Pragmatic Efficient Innovation" spirit of enterprise. Has a sound R & D strength and maturity of the service team. We The aim is: "with the service and sincere exchange for your trust and support of mutual benefit and win-win..!" My company is willing to cooperate with domestic and foreign colleagues Chester sincerely recommend to you to create the future ZLDB-5T microcomputer intelligent.! low-voltage feeder protection devices, economic Ninghao Bo's ZLDB-5T microcomputer intelligent low-voltage feeder protection devices we can not guarantee that all customers can make all totally satisfied, but we ZLDB-5T microcomputer intelligent low-voltage feeder protection devices can absolutely guarantee that all customers with peace of mind, Order Hotline: 0537-232-9989,186-1368-7339 Di Jingli following me tell you about the ZLDB-5T microcomputer intelligent low-voltage feeder protection devices, if you have any questions about the product can be. Direct contact me: 186-1368-7339 landline: 0537-232-9989 QQ: 232-545-4811 Di Jingli ZLDB-5T-type protection device has the following 16 basic functions 1.1, short of feed switch load side appears failure, timing limit relay protection. 1.2 feed switch on the load side of a continuous overload occurs, the implementation of anti-time protection and alarm. 1.3 feed switch on the load side of intermittent overload occurs, the energy release and accumulation operations, the implementation of anti-time protection. Alarm overload. 1.4, leakage blocking protection: to feed the load-side load switch insulation resistance is below, 40KΩ + 20% (1140V), 22KΩ + 20% (660V), can reliably achieve leakage 7KΩ + 20% (380V) when lockout. 1.5, leakage protection: protection master switch is in position to play, if a leak occurs in the main line or branch line leakage phenomenon a long time, the main switch will trip within the set time. Leakage protection action values ??were: 20KΩ (for 1140V), 11KΩ (for 660V) and 3.5KΩ (for 380V). 1.6, selective leakage protection: protection hit points when the switch position if this branch leakage phenomenon occurs, the local branch switch will trip, while the other branch switches and master switch will not trip. Selective leakage protection action value: 5KΩ ~ 20KΩ (for 1140V), 5KΩ ~ 13KΩ (for 660V) and 3KΩ ~ 7KΩ (for 380V). 1.7, take the time to protect against incoming line voltage is less than the set undervoltage value. 1.8, character display current grid voltage load current value, protection operation. 1.9 Tripping long-term memory (available again), there is a detailed record 20 times before the cause of a fault trip. 1.10, to record the cumulative number of points off, tired mind consumption, total working hours. 1.11, with a self-test fault simulation test function to ensure trouble-free operation without itself. 1.12, spreadsheet functions, can pinpoint the time off work. 1.13, wind power lockout feature. 1.14, balanced protection: three-phase three-phase load can be checked lack of protection, you can choose to open and close. 1.15, two password feature to prevent unauthorized personnel to operate, password feature can be set to open and close. 3, the main technical parameters ZLDB-5T models with full Chinese menu selector, users can achieve full operation by two buttons feed switch box door. (1), the voltage level: line voltage (V). Select the tuning voltage binning adjustable. Nominal values ??are 660V, 1140V, when in use, please select the correct display mode according to the actual grid voltage. (Example: If used, please feed 660V 660V switch on the selected display mode). Accuracy: + 8%. (2), rated current Ie rated tranches adjustable current setting. Nominal value may be within a very wide range of 40A-400A adjusted in steps 5A. The actual load current user can select the corresponding file in accordance with the rated current, if necessary, can be selected slightly larger.