DTU cabinet box changes the opening and closing of the control cabinet DTU柜箱变开闭所测控柜
Including the double power intelligent measurement and control device cabinet NKT300 UPS power supply device
NKT300 intelligent electric energy measurement device is a kind of measurement, display, digital communication and input, output etc.
Intelligent measurement and control device, to the three-phase current, grid current balance, three-phase voltage, voltage balance,
Active power, reactive power, apparent power, power factor, frequency and three phase line voltage the maximum, minimum
Three phase current value, maximum value, minimum value, active power, reactive power, apparent value, the minimum value in the maximum power, power
Demand measurement of a plurality of electrical parameters were measured; with a standard clock, can realize when the GPS rate of 8, 4 time division charge function and have
The voltage and current of 3-31 harmonics measurement and event recording function, equipped with 2 way electric energy pulse output and 1 road RS485
News, 4 digital inputs, 4 digital outputs, can be extended 4 analog quantity transmitting output, and a plurality of expansion
Measurement of U, I, kW, kVar, KVA kVarh, kWh, Hz, cos phi, harmonic measurement, Sixiang Limited
RS-485 MODBUS-RTU, 101, CDT, DNP3 etc.
Remote signal 4 digital inputs the remote control switch output 4 scalable
4 analog output, 4-20mA (optional)
LCD
Performance parameters
Transmission
Into the
Test
The amount of
Explicit
The network shown in three-phase four wire, three-phase three wire
Electric
AC100V, 400V value of voltage rating (when ordering)
Over load duration: 1.2 times: 2 times the instantaneous
Power is less than 1VA (per phase)
More than 400K ohm impedance
The accuracy of RMS measurement, accuracy class 0.5
Current ratings of AC1A and 5A (when ordering)
Over load duration: 1.2 times: 10 times the instantaneous
Power is less than 0.4VA (per phase)
Impedance < 2m.
The accuracy of RMS measurement, accuracy class 0.5
The frequency of 40-65Hz, the precision of 0.1Hz
The active power, reactive power, power factor, precision 0.5
The electric energy metering four quadrant, 4 rate of 8 time division charge, active energy
Accuracy of 1, reactive energy 2 (multi rate function matching)
Harmonic 3-31 sub harmonic and total harmonic content (optional)
Event recording can record the latest 1-64 times switch action state and action time (optional)
The power supply operating range of the AC/DC85-265V
Power consumption is less than or equal to 5VA
The number of
The word
Joint
Export RS-485 digital interface, the protocol of MODBUS-RTU, 101, CDT, DNP3, etc.
Pulse output 2 way electric energy pulse output optocoupler collector output open circuit
Switch input and 4 digital inputs, dry contact output
Output switch 4 switch input, dry contact output
Analog output 4 analog output, 4-20mA (optional)
Environmental working environment of -10-55 C
The storage environment of -20-75 C
Safety voltage input / power > 2KV, input / output > 2KV > 1KV / output power
Insulating input and output, power supply to the case > 50M.

 

DTU柜箱变开闭所测控柜

包括柜体 智能测控装置NKT300 UPS电源 双电源装置

NKT300智能电能测控装置是一种具有测量、显示、数字通讯和输入、输出等的
智能测控装置,能对电网中的三相电流、电流平衡度、三相电压、电压平衡度、
有功功率、无功功率、视在功率、功率因数、频率以及三相线电压最大值、最小
值，三相电流最大值、最小值，有功、无功、视在功率的最大值、最小值，功率
需量测量等多个电参数进行测量;带标准时钟,可实现GPS对时,4种费率8时段分时计费功能和具有
电压电流3-31次谐波测量以及事件记录功能,配备2路电能脉冲输出和1路RS485通
讯，4路开关量输入，4路开关量输出，可扩展4路模拟量变送输出,及多台扩展

测量 U、I、kW、kVar、KVA kVarh、kWh、Hz、cosφ、谐波测量、四象限量

RS-485 MODBUS-RTU,101,CDT,DNP3等
遥信4路开关量输入 遥控 4路开关量输出  可扩展

液晶显示

 

性能	参数
输 入 测 量 显 示	网络		三相四线，三相三线
	电 压	额定值	AC100V、400V(订货时说明)
		过负荷	持续:1.2倍 瞬时:2倍
		功耗	＜1VA(每相)
		阻抗	≥400KΩ
		精度	RMS测量,精度等级0.5
	电流	额定值	AC1A、5A(订货时说明)
		过负荷	持续:1.2倍 瞬时:10倍
		功耗	＜0.4VA(每相)
		阻抗	＜2mΩ
		精度	RMS测量,精度等级0.5
	频率		40-65Hz,精度0.1Hz
	功率		有功、无功、功率因数，精度0.5
	电能		四象限计量，4种费率8时段分时计费,有功电能 精度1.0，无功电能2.0(复费率功能选配)
	谐波		3-31分次谐波以及总谐波含量(选配)
	事件记录		可记录最近1-64次开关动作状态及动作时间(选配)
电源	工作范围		AC/DC85-265V
	功耗		≤5VA
数 字 接 口	数字接口		RS-485,MODBUS-RTU协议,101,CDT,DNP3,等
	脉冲输出		2路电能脉冲输出光耦集电极输开路式
	开关量输入		4路开关量输入,干接点方式
	开关量输出		4路开关量输入,干接点方式
	模拟量输出		4路模拟量输出,4-20mA（选配）
环境	工作环境		-10-55℃
	储存环境		-20-75℃
安全	耐压		输入/电源＞2KV,输入/输出＞2KV,电源/输出＞1KV
	绝缘		输入、输出,电源对表壳＞50MΩ